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Networks & Comms

EtherNet/IP, PROFINET, Modbus, OPC UA, MQTT and DeviceNet.
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Two OEM CompactLogix packers both on 192.168.1.x, second one can't join the network

Last post by ollyb, 2 months ago

Posts: 8
Views: 194


PROFIBUS DP at 1.5 Mbit/s over a 300 m segment, far slaves drop with BF flashing

Last post by sparkymike, 2 months ago

Posts: 9
Views: 85


Publish MQTT straight from the S7-1500 with LMQTT, or put an edge gateway in?

Last post by scott_m, 2 months ago

Posts: 7
Views: 155


Eleven remote racks drop 16#0204 at line start-up, 1756-EN2T fine once running

Last post by billr, 2 months ago

Posts: 8
Views: 151


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1756-EN2T webpage media counters, what do FCS errors mean when a rack shows 16#0204

Last post by ramonv, 2 months ago

Posts: 8
Views: 168


S7-1500 OPC UA connection refused from the office subnet, works from the plant

Last post by mira88, 2 months ago

Posts: 8
Views: 151


1756-EN2T off the network after IT enabled port security, switch port err-disabled

Last post by plctr_mod, 2 months ago

Posts: 8
Views: 165


EtherNet/IP I/O drops 16#0204 about five minutes after every switch reboot

Last post by petek, 2 months ago

Posts: 8
Views: 125


Modbus TCP over LTE, half of twelve wellpad RTUs time out every poll cycle

Last post by scott_m, 2 months ago

Posts: 8
Views: 134


Modbus exception 02 illegal data address reading a flow computer with S7-1200 MB_CLIENT

Last post by marcob, 2 months ago

Posts: 8
Views: 131


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