Siemens Redundant CPU forcing Refresh Browse to update values

Ignition
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1

Hi everyone,

I’m working on a project using Ignition 8.3.3 and the Siemens Enhanced Driver. Recently we put the Siemens PLCs in a redundant ring configuration, where the Gateway connects to whichever PLC is currently primary.

My problem is that whenever the primary CPU is changed, all tag values are 0 or empty until I do a “refresh browse” of the connection. This was not necessary before we set up the ring network for the PLCs.

I’m not sure what information might be useful in finding out how to solve the problem, but I’ll gladly provide it in order to help you help me.

Thanks in advance!

2

You should open a support ticket. (Don't hold your breath, though, as this doesn't sound like a supported feature.)

3

@Cody_Morgan will know more, it probably comes down to support in the underlying library.