I talked to Rockwell Tech support, he said it will not be an easy or simple fix. 1 remote DeviceNet Beckoff and 1 remote DeviceNet panelviewĭestination is an address outside our network. The L55 - flashed 15.5 only has ENBT/A and DNB in main rack. ENBT/A, CNB/A, IR6I & OF6I in main rackĭestination is an address outside our network Mix of CNB/A, IA16I, OW16I, IF6I, OF6CI in remote racks. Worst offender is one L61 - flashed 15.1 It has 9 remote racks over ControlNet.

(I’m assuming no one sniffed packets or checked band width usage before coming to the decision to separate networks) They didn’t know what the problem was so about 2 years ago, they hired a firm to separate the HMI displays from the Process Network because the network was so slow. Only been at this plant a short time, they told me they have always had a super slow network. Katron Tech, KTI managed switches but not managed (plugged in out of the box) Mostly 1756-L61, One L55, several 1769-元2E and several SLC500Īll L61’s were installed at same time when mill was upgraded.Īll L61's are flashed to 15.x (been in service about 5 years.)įiber and cat5. WireShark shows about 87 million per day. I have 2 PLC's, (1) L61 and (1) L55 that broadcasting a butt load of MCast packets.

Wireshark capture multicast traffic