FAQ: Ethernet/IP

FAQ – Technical Update for EtherNet/IP on Alicat

Updated: 30 April 2018

Which products can have EtherNet/IP installed?

EtherNet/IP protocols are an option on most of Alicat Scientific’s flow and pressure instrumentation:

  • Mass flow controllers and meters (MC and M Series)
  • Pressure controllers and gages (PC and P Series)
  • Whisper™ low pressure drop products
  • Liquid meters and controllers (LC and L Series)

Which products do not include EtherNet/IP as an option?

  • BASIS and EPC OEM instruments
  • Class 1 Division 2 area instruments
  • Portable instruments

What are the specification changes to an Alicat Instrument, when EtherNet/IP is included?

Communications and powerMass flow meter or mass flow controller with EtherNet/IP
Digital output signalEtherNet/IP
Analog output signalsNone
Electrical connectionsBarrel jack (power) + dual RJ-45 (supports DLR*) + MOD and NET LEDs
Supply voltage7 to 30 Vdc
Supply currentAdds 120mA current to standard specification, which is 40 mA on mass flow meters. Mass flow controllers draw more current to drive the valves—add 120mA to their specified supply current.

 

Do I still have a choice of gases and gas mixes on Ethernet/IP-equipped instruments?

Alicat gas instruments with Ethernet/IP possess our full Gas Select™ list of gas calibrations, as well as the COMPOSER™ firmware for creating custom high-precision gas mixes of 2-5 gases.

How fast are communications with an Alicat instrument equipped with EtherNet/IP?

EtherNet/IP uses a full duplex 10/100 Ethernet hardware layer for data rates up to 100Mbit/s.

Where are the notification indicator lights?

The MOD and NET LEDs are handy to debug networks when deploying EtherNet/IP. They are located on the case top. They are standard debugging LEDs for EIP networks.

Does EtherNet/IP on Alicat instruments comply with the industry standard?

The standards certification is in process, and therefore the instruments are Ethernet/IP compatible, and are ODVA certified.

Can I update my existing instruments to possess EtherNet/IP?

Both electronic hardware and firmware requirements needed to install EtherNet/IP mean that it must be ordered on new instruments, and cannot be retrofitted to existing Alicat products.

*What is DLR?

DLR: Device Level Ring. Device Level Ring provides the ability to connect a series of MFCs in a fault-tolerant ring network. It is a network topology wherein connections are made from the master to an MFC, then from MFC to MFC to MFC. DLR often reduces cabling, and adds redundancy. DLR requires a specialized ring supervisor switch, which is not provided with the instrument.

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