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Modbus Master Scanner
#3
(09.03.2021, 06:49)admin Wrote: Do you mean that you want to capture Modbus TCP communication between other master and slave devices? It's not possible to do this directly. One solution is to temporarily disconnect one of slaves and place LM with the same IP as the slave instead. Another solution is to use Wireshark for capturing but for this you will either need a PC with two network interfaces so all traffic goes through it or you need an Ethernet hub (not a switch) which passes all traffic to all ports.

Thank you for your response, yes we want to see the traffic between master and slave's
Sorry I forgot to include we are using the RS485 ports to interact with Modbus, not TCP
So we Have Port 1 as Polling and Port 2 as Slave.
Does this make a difference on being able to pass the traffic through the LM and incept the messaging.
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Messages In This Thread
Modbus Master Scanner - by sjfp - 08.03.2021, 20:36
RE: Modbus Master Scanner - by admin - 09.03.2021, 06:49
RE: Modbus Master Scanner - by sjfp - 09.03.2021, 07:35
RE: Modbus Master Scanner - by admin - 09.03.2021, 07:43
RE: Modbus Master Scanner - by sjfp - 09.03.2021, 08:53

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