{"id":37928,"date":"2024-01-30T21:11:46","date_gmt":"2024-01-30T21:11:46","guid":{"rendered":"https:\/\/www.alicat.com\/?post_type=article&#038;p=37928"},"modified":"2026-03-12T17:55:58","modified_gmt":"2026-03-12T17:55:58","slug":"unterscheidung-der-kommunikationsmoglichkeiten","status":"publish","type":"support","link":"https:\/\/www.alicat.com\/de\/support\/distinguishing-among-communication-options\/","title":{"rendered":"Unterscheidung zwischen Kommunikationsoptionen"},"content":{"rendered":"\n[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; min_height=&#8221;2725.9px&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_row _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; min_height=&#8221;2643.2px&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_heading title=&#8221;Distinguishing among communication options&#8221; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][\/et_pb_heading][et_pb_text _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]<p><em>This article presents an overview of Alicat\u2019s various communication options. For more detailed specifications, check <a href=\"https:\/\/www.alicat.com\/support\/communication-options-for-alicat-instruments\/\" target=\"_blank\" rel=\"noopener\">this page<\/a>.\u00a0<\/em><\/p>\n<p><span data-contrast=\"none\">Choosing the best communication protocol to work with your Alicat devices depends on factors such as:<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559731&quot;:720,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p>\n<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span style=\"color: #000000;\">Preference for analog, serial, or industrial protocol communication\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span style=\"color: #000000;\">Required operating distance\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span style=\"color: #000000;\">Required data transfer speed\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span style=\"color: #000000;\">Desired device linking configurations\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span style=\"color: #000000;\">Total number of connected devices\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span style=\"color: #000000;\">Familiarity with communication options\u00a0\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"7\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span style=\"color: #000000;\">Desired data accuracy\u00a0\u00a0<\/span><\/li>\n<\/ul>\n<p><span data-contrast=\"none\">Alicat provides various analog, serial, and industrial protocol communication options to meet all of your specific application needs.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559731&quot;:720,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p>[\/et_pb_text][et_pb_accordion _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_accordion_item title=&#8221;What is the difference between analog, serial, and industrial protocol communication options?&#8221; open=&#8221;on&#8221; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; toggle_font=&#8221;|700|||||||&#8221; theme_builder_area=&#8221;post_content&#8221;]<div class=\"su-box su-box-style-default .su-box.my-custom-box { max-width: 400px; }\" id=\"\">\n<div class=\"su-box-content su-u-clearfix su-u-trim\"><span data-contrast=\"none\">Analog communications transfer device information using either continuous current or voltage data whereas serial and industrial protocol communication options rely on digital signals that consist of discrete data in binary form. Whereas analog signals require end user interpretation of raw electrical signals, serial communications work with communication layers such as industrial protocols or software programs such as\u00a0<a href=\"https:\/\/www.alicat.com\/technical-reference\/#software\" class=\"nitro-offscreen nitro-lazy-render\" target=\"_blank\" rel=\"noopener\">FlowVision 2.0<\/a>\u00a0to interpret their binary signals. Industrial protocols are the standardized control systems that handle various manufacturing automation processes. Many Alicat devices can switch between analog and serial control.<\/span><\/div>\n<\/div>[\/et_pb_accordion_item][\/et_pb_accordion][et_pb_text _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;]<h2 class=\"nitro-offscreen nitro-lazy-render\"><b><span data-contrast=\"none\">Alicat analog communication options\u00a0<\/span><\/b><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;201341983&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/h2>\n<p class=\"nitro-offscreen nitro-lazy-render\"><span data-contrast=\"auto\">Alicat offers analog communication options which transfer data via either current or voltage. Due to voltage drop, current is preferable for long operating lengths. Conversely, voltage provides more control options. Compared to serial communications, analog signals may have up to 0.25% additional reading error. Alicat\u2019s analog options include:<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/p>\n<ul class=\"nitro-offscreen nitro-lazy-render\">\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"14\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:781,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span style=\"color: #000000;\">0-5 Volts\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"14\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:781,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span style=\"color: #000000;\">0-10 Volts\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"14\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:781,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span style=\"color: #000000;\">1-5 Volts\u00a0\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"14\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:781,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span style=\"color: #000000;\">4-20 mA\u00a0<\/span><\/li>\n<\/ul>\n<h2 class=\"nitro-offscreen nitro-lazy-render\"><b><span data-contrast=\"none\">Alicat serial protocols\u00a0<\/span><\/b><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;201341983&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/h2>\n<p class=\"nitro-offscreen nitro-lazy-render\"><span data-contrast=\"auto\">The Alicat serial command interface is the native communications interface used for control, calibration, and programming of all Alicat devices. This interface uses\u00a0<a href=\"https:\/\/www.computerhope.com\/jargon\/a\/ascii.htm\" target=\"_blank\" rel=\"noopener\">ASCII<\/a>\u00a0over either RS-232 or RS-485, with\u00a0<a href=\"https:\/\/www.alicat.com\/support\/rs-232-communication-with-an-alicat\/\" target=\"_blank\" rel=\"noopener\">RS-232<\/a>\u00a0being the default option. This is the most powerful way to communicate with and program an Alicat device as all the in house software such as FlowVision 2.0 is built around this framework.\u00a0<\/span><span data-ccp-props=\"{&quot;335559731&quot;:720}\">\u00a0<\/span><\/p>[\/et_pb_text][et_pb_accordion _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_accordion_item title=&#8221;What is the difference RS-232 and RS-485?&#8221; open=&#8221;on&#8221; title_tablet=&#8221;What is the difference RS-232 and RS-485?&#8221; title_phone=&#8221;What is the difference RS-232 and RS-485?&#8221; title_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; toggle_font_last_edited=&#8221;off|phone&#8221; toggle_font_size_tablet=&#8221;&#8221; toggle_font_size_phone=&#8221;21px&#8221; toggle_font_size_last_edited=&#8221;on|phone&#8221; theme_builder_area=&#8221;post_content&#8221;]<div class=\"su-box su-box-style-default .su-box.my-custom-box { max-width: 400px; } nitro-offscreen nitro-lazy-render\" id=\"\">\n<div class=\"su-box-content su-u-clearfix su-u-trim\"><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\"><a href=\"https:\/\/www.raveon.com\/wp-content\/uploads\/2019\/01\/AN236SerialComm.pdf\" target=\"_blank\" rel=\"noopener\">RS-485 and RS-232<\/a>\u00a0are the two physical layer options which describe the electrical behavior used to communicate serial commands on Alicat devices. Both RS-485 and RS-232 use three communication wires for sending and receiving data. Whereas RS-232 uses one ground wire, one for receiving, and one for transmitting data, RS-485 uses one wire for ground while the other two wires can both transmit and receive data. RS-485 is best for communicating over long lengths of cable, in environments with lots of radiofrequency noise and is faster whereas RS-232 is better suited for star topology device linking setups.<\/span><\/div>\n<\/div>[\/et_pb_accordion_item][\/et_pb_accordion][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; sticky_enabled=&#8221;0&#8243;]<p class=\"nitro-offscreen nitro-lazy-render\"><span data-contrast=\"auto\">Every Alicat device uses a base circuit board that is either in RS-232 or RS-485 which then communicates with a compatible industrial protocol or other control system either physically or via software.\u00a0<\/span><span data-ccp-props=\"{&quot;335559731&quot;:720}\">\u00a0<\/span><\/p>\n<p class=\"nitro-offscreen nitro-lazy-render\"><span data-contrast=\"auto\">Alicat offers FlowVision 2.0 and\u00a0<a href=\"https:\/\/www.alicat.com\/documentation\/software-drivers\/\" target=\"_blank\" rel=\"noopener\">Alicat Serial Terminal<\/a>\u00a0options for communicating serial commands with devices. Alicat\u2019s Serial Terminal offers command line communication whereas FlowVision 2.0 is proprietary Alicat software with many different control options embedded into the program. Additionally, programs like\u00a0<a href=\"https:\/\/www.alicat.com\/documentation\/labview-virtual-instrument-drivers\/\">LabView<\/a>,\u00a0<a href=\"https:\/\/www.alicat.com\/support\/configuring-putty-for-use-with-alicat-instruments\/\">Putty<\/a>, and\u00a0<a href=\"https:\/\/www.alicat.com\/support\/python-and-command-prompt-communication-instructions\/\">Python<\/a>\u00a0can also communicate with Alicat devices serially. Technically, some industrial protocols also communicate with serial commands however they will be covered in the next section.\u00a0<\/span><span data-ccp-props=\"{&quot;335559731&quot;:720}\">\u00a0<\/span><\/p>\n\n<h2 class=\"nitro-offscreen nitro-lazy-render\"><b><span data-contrast=\"none\">Alicat industrial protocol options<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/h2>\n<p class=\"nitro-offscreen nitro-lazy-render\"><span data-contrast=\"none\">The manufacturing controls are organized in common ways, independent of the protocols used. Some of these options involve use of process level controllers or PLCs which do small computing and control tasks. Alternatively, human-machine interfaces or HMIs display information and provide limited, programmable control over PLCs. Additionally, supervisory control &amp; data acquisition or\u00a0<a href=\"https:\/\/www.bing.com\/search?q=scada+system&amp;cvid=f4fdde4ac3d04d89a02d2a5e26df650d&amp;aqs=edge.1.0l9j69i11004.3950j0j1&amp;pglt=43&amp;FORM=ANNAB1&amp;PC=U531\" target=\"_blank\" rel=\"noopener\">SCADA systems<\/a>\u00a0integrate data from large networks of sub-processes to make it easier to command and control entire factories.<\/span><span data-ccp-props=\"{&quot;335559731&quot;:720}\">\u00a0<\/span><\/p>\n<p class=\"nitro-offscreen nitro-lazy-render\"><span data-contrast=\"none\">Industrial computers which use industrial protocol communication options are designed to be programmed by technicians already familiar with the mechanical automation and electrical relays. Because of this, they are programmed using simple, often graphical programming languages.<\/span><span data-ccp-props=\"{&quot;335559731&quot;:720}\">\u00a0<\/span><\/p>\n<p class=\"nitro-offscreen nitro-lazy-render\"><span data-contrast=\"none\">Analog control is not compatible with devices using most industrial protocols (exception is Modbus RTU). All industrial protocols can run via compatible PLCs or using specialized hardware on PCs. Modbus RTU and Modbus TCP\/IP require the least amount of specialized hardware to work on PCs. With exception to Modbus RTU, IP devices are not available with Basis, EPC, CSA Class 1 Div 1 or Class 1 Div 2 certified, or portable configurations.\u00a0<\/span><span data-ccp-props=\"{&quot;335559731&quot;:720}\">\u00a0<\/span><\/p>\n<p class=\"nitro-offscreen nitro-lazy-render\"><span data-contrast=\"none\">Alicat currently offers 7 different industrial protocol communication options, including:<\/span><span data-ccp-props=\"{&quot;335559731&quot;:720}\">\u00a0<\/span><\/p>\n\n<ul class=\"nitro-offscreen nitro-lazy-render\">\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"11\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><a href=\"https:\/\/www.alicat.com\/documentation\/faq-modbus\/\"><span data-contrast=\"none\">Modbus RTU<\/span><\/a><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"8\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><a href=\"https:\/\/www.alicat.com\/documentation\/faq-modbus\/\"><span data-contrast=\"none\">Modbus TCP\/IP<\/span><\/a><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"8\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><a href=\"https:\/\/www.alicat.com\/documentation\/faq-ethernet-ip\/\"><span data-contrast=\"none\">EtherNet\/IP<\/span><\/a><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"8\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><a href=\"https:\/\/www.alicat.com\/documentation\/faq-ethercat\/\"><span data-contrast=\"none\">EtherCAT<sup>&reg;<\/sup><\/span><\/a><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"8\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><a href=\"https:\/\/www.alicat.com\/documentation\/faq-devicenet\/\"><span data-contrast=\"none\">DeviceNET<\/span><\/a><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"8\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><a href=\"https:\/\/www.alicat.com\/documentation\/faq-profibus\/\"><span data-contrast=\"none\">PROFIBUS<\/span><\/a><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"8\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><a href=\"https:\/\/www.alicat.com\/documentation\/profinet-faq\/\">PROFINET<\/a><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"8\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:1440,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><a href=\"https:\/\/www.alicat.com\/documentation\/io-link-faq\/\">IO-Link<\/a><\/li>\n<\/ul>\n<p class=\"nitro-offscreen nitro-lazy-render\"><b><span data-contrast=\"none\">Modbus RTU\u00a0<\/span><\/b><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n\n<ul class=\"nitro-offscreen nitro-lazy-render\">\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:795,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span style=\"color: #000000;\">Modbus over RS-232 or Modbus over RS-485 communication options.\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:795,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span style=\"color: #000000;\">Openly published and royalty free.\u00a0\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:795,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span style=\"color: #000000;\">Uses a master\/slave architecture.\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:795,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span style=\"color: #000000;\">Does not require any special hardware configuration (works well with PCs).\u00a0<\/span><\/li>\n<\/ul>\n<p class=\"nitro-offscreen nitro-lazy-render\"><b><span data-contrast=\"none\">Modbus TCP\/IP\u00a0<\/span><\/b><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n\n<ul class=\"nitro-offscreen nitro-lazy-render\">\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:795,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span style=\"color: #000000;\">Modbus software layer over Ethernet.\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:795,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span style=\"color: #000000;\">Works with both PCs and PLCs like Modbus RTU.\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:795,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span style=\"color: #000000;\">When using a PC, requires Modbus Poll or another Modbus program to operate.\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:795,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span style=\"color: #000000;\">Able to use remote connections.\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:795,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"5\" data-aria-level=\"1\"><span data-contrast=\"none\" style=\"color: #000000;\">Uses a master\/slave architecture with no limit on total number of devices.<\/span><span data-ccp-props=\"{}\">\u00a0<\/span><\/li>\n<\/ul>\n<p class=\"nitro-offscreen nitro-lazy-render\"><b><span data-contrast=\"none\">EtherNet\/IP<\/span><\/b><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n\n<ul class=\"nitro-offscreen nitro-lazy-render\">\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:795,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span style=\"color: #000000;\">Device must be assigned an IP address to connect to the network.\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"4\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:795,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span style=\"color: #000000;\">There is no practical method to use EtherNet\/IP with a PC. It must use a PLC.\u00a0<\/span><\/li>\n<\/ul>\n<p class=\"nitro-offscreen nitro-lazy-render\"><b><span data-contrast=\"none\">EtherCAT<\/span><\/b><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n\n<ul class=\"nitro-offscreen nitro-lazy-render\">\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"13\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span style=\"color: #000000;\">Designed with short data update times allowing sub 1ms cycle times.\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"13\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span style=\"color: #000000;\">Can be connected in linear or star topologies.\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"13\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span style=\"color: #000000;\">Works with any EtherCAT capable PLC\u00a0\u00a0<\/span><\/li>\n<\/ul>\n<p class=\"nitro-offscreen nitro-lazy-render\"><b><span data-contrast=\"none\">DeviceNET<\/span><\/b><span data-ccp-props=\"{}\">\u00a0<\/span><\/p>\n\n<ul class=\"nitro-offscreen nitro-lazy-render\">\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"5\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span style=\"color: #000000;\">Communicates over CAN (Controller Area Network) technology.\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"5\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span style=\"color: #000000;\">Supports both master\/slave and peer-to-peer architecture.\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"5\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span style=\"color: #000000;\">Power is provided over the network bus.\u00a0<\/span><\/li>\n<\/ul>\n<p class=\"nitro-offscreen nitro-lazy-render\"><b>PROFIBUS<\/b><\/p>\n\n<ul class=\"nitro-offscreen nitro-lazy-render\">\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"5\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span style=\"color: #000000;\">Data is transferred over RS-485 serial communication.<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"5\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span style=\"color: #000000;\">Requires master\/slave architecture (either PROFIBUS card inside of a PC, or a PROFIBUS enabled PLC).\u00a0<\/span><\/li>\n\t<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"5\" data-list-defn-props=\"{&quot;335552541&quot;:1,&quot;335559684&quot;:-2,&quot;335559685&quot;:720,&quot;335559991&quot;:360,&quot;469769226&quot;:&quot;Symbol&quot;,&quot;469769242&quot;:[8226],&quot;469777803&quot;:&quot;left&quot;,&quot;469777804&quot;:&quot;\uf0b7&quot;,&quot;469777815&quot;:&quot;hybridMultilevel&quot;}\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span style=\"color: #000000;\">Option to power over PROFIBUS.<\/span><\/li>\n<\/ul>\n<p class=\"nitro-offscreen nitro-lazy-render\"><b>IO-Link<\/b><\/p>\n\n<ul class=\"nitro-offscreen nitro-lazy-render\">\n\t<li>Devices can either be configured as Class A (4-pin) or Class B (5-pin)<\/li>\n\t<li>The M12 port is an IO-Link port class A with 4 pins or an IO-Link port class B with 5 pins<\/li>\n\t<li>The device can be powered through the M12 connector<\/li>\n\t<li>Port class B uses the isolated power supply for valve power, most commonly for instruments with large valves<\/li>\n<\/ul>\n<p class=\"nitro-offscreen nitro-lazy-render\">[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"featured_media":46458,"parent":0,"template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"1920","content-type":"","_searchwp_excluded":""},"categories":[],"class_list":["post-37928","support","type-support","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Distinguishing Among Communication Options - Alicat Scientific<\/title>\n<meta name=\"description\" content=\"Learn how to choose the best communication protocol to work with your Alicat devices.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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