Rockwell Micrologix 1400 Communication via WR21

Digi TransPort WR (Series)
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1

The current setup:
Head-end: iFix 5.8 communicating through OPC/IGS server.
Remote: TransPort WR21 Cellular > Micrologix 1400 Ethernet.

WR21 has a static IP address from ATT. Connection is LTE, there do not appear to be any issues with signal strength/quality as the installation is a fairly urban area.

The WR21 is configured with a port forward to the Micrologix e-net port.

Communications seem to work fine when initially powered up, but eventually completely fail after a few hours. I have extended poll times to 5 minutes in iFix and expanded comm timeouts to max in both the OPC server and PLC interface.

I can always reach the digi interface, there doesn’t seem to be a problem there - it seems as though the ethernet port on the micrologix shuts down.

Anybody had any luck with Micrologix Enet processors (particularly the 1400) over cellular?

2

Hi

if you have the router and the test device wired directly together you would see in the eventlog on the WR21 if the ETH 0 interface goes up / down when in normal opperation

09:13:23, 08 Sep 2016,ETH 0 cable connect

you could also trace the packets from the WR21 and see if the unit is still responding.

regards

James