Modbus "pollsets"

G

Thread Starter

GD

I'm looking for some help. for a little background I come from the AB world, so Modbus is still a foreign language.

I need to create Modbus Pollsets, where the data from a group of 4XXXX registers will be placed into 3XXXX registers.

From the 3XXXX registers, the data will be polled by SCADA. The theory is that this will reduce poll times.

Where do I start?

Thanks!
 
B

Bruce Durdle

Why do you need to use 3xxxx registers? These are "read-only" as they are set by the associated input cards. You should set up a block of 4xxxx registers for your polling block, and transfer date from the source registers to the blocks as required. If the source registers are in decent-sized blocks, you can access these directly.
 
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