Point IO IA4 module - where to find channel data?

selectionplc · May 22, 2017

I have a 1734-AENT configured in RSlogix 5000 with an IA4 module. I was expecting to see a controller tag something like FS1:1:I.Ch0Data, but I don't see any channel data anywhere. I just have FS1:1:I.0 - FS1:1:I.7.

Am I missing something or can somebody point me in the right direction? Thanks!

Paullys50 · May 22, 2017

It's just a digital input module...

Geospark · May 22, 2017

Paully's5.0 said:
It's just a digital input module...

More specifically, the 1734-IA4 is a Point I/O four-point AC module. The "A" denotes the required supply voltage for the module. Not to be possibly confused with "A" denoting an Analog module.

That is if you are referring to "channel data" as being that of the Analog type? The example address "FS1:1:I.Ch0Data" would suggest as much?

Regards,
George

pal · May 22, 2017

To add to George's reply an analog 4 channel module would be 1734-IE4C for current , or 1734-IE4V for voltage .
Regards,
Paul

selectionplc · May 22, 2017

Thanks for the clarification. I have another stupid question while I'm at it. If it is a 4 point module, why are there 8 input values?

rajy2r · May 22, 2017

selectionplc said:
Thanks for the clarification. I have another stupid question while I'm at it. If it is a 4 point module, why are there 8 input values?

They are unused bits. If you look in the manual, the data mapping is defined there. Manual Link See page 17

selectionplc · May 23, 2017

Ah yes this makes sense. I saw this in the manual and this is why I thought I should be looking for Ch0Data...

Thanks for the help.

Point IO IA4 module - where to find channel data?

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