S7-1212C Modbus Master / Slave

Hal9000

Member
Join Date
Jun 2010
Location
London
Posts
140
Hi there,

I would like to use an S7-1212C to act as both a Modbus TCP Client and server at the same time. I'm gathering data from generator sets and exposing that data to a site SCADA. I expect to have in the region of 300 INT registers exposed to the SCADA sytstem

Are there any limitations in terms of block read sizes that the SCADA developers need to be aware of?

What is the max limit on number of registers the PLC can support? (as a Modbus TCP server).

Many thanks,
 

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