B
We have a duty/standby system with modbus cards that need to read & write to the slaves.
The standby will write if the duty fails.
Does anyone have some advice on setting up the modbus cards to:
1) Only have 1 master on the RS485 network at any time (the second master needs to be attached in case Duty PLC fails)?
2) or is it possible to setup with two master but one having priority over the other to ensure that only the duty master can write to the slave?
If anyone has any advice or comments it would be appreciated.
Brendon
The standby will write if the duty fails.
Does anyone have some advice on setting up the modbus cards to:
1) Only have 1 master on the RS485 network at any time (the second master needs to be attached in case Duty PLC fails)?
2) or is it possible to setup with two master but one having priority over the other to ensure that only the duty master can write to the slave?
If anyone has any advice or comments it would be appreciated.
Brendon