I have a 1769-L32E compactlogix processor with a number of modules connected through a managed switch in a star/ring combined topology. The PLC port faults cutting all connections to the I/O halting the machine unexpectedly, about 2-3 times/week. This so annoying... The HMI was configured to work through the PLC's serial port. I am out of ideas and tired of trial and error procedures. I contacted Rockwell's support and, as I had formerly an unmanaged switch, they recommended to replace it with a managed one. The chosen switch is a Stratix 5700 1783-BMS20CA which was given a static IP address to have the AB-global macro executed, per instructions from its manual.
The fault persists; the only thing that has made the faults less frequent was to increase RPIs in every node. The network is only composed of a few nodes (well below the published limit for the L32E). Please help! Customer is quite upset and not without a reason.
The fault persists; the only thing that has made the faults less frequent was to increase RPIs in every node. The network is only composed of a few nodes (well below the published limit for the L32E). Please help! Customer is quite upset and not without a reason.