Addressing Analog M1100

Hey. I am makeing a SCP in af micrologix 1100. But how do I addres the Input to be on of the analog inputs.

thanks

Hi Hojland,

It will depend on the expansion slot number and the channel of that slot you are using...
For example, if you fit a 1762-IF4 and make it the first expansion module - and you want to address the first analogue channel of that module, you would use I:1.0 as the address in your code (in your case, the Input address of an SCP block). The spare channels would be I:1.1/I:1.2/I:1.3.

Hope this helps!

Regards,

Rob

The built in analog inputs are addresses: I:0.4 and I:0.5.

If you go to the input data file and change the Radix to decimal, the descriptions show the analogs.

...Sorry, forgot all about those ones!

Don't use the built in very often. From memory, i think the data range is something like 0-1023. I have used a 500ohm resistor across them and used 4-20mA transmitters (range is approx 202-1023)in the past, and they seem ok for basic process monitoring...

Hope this (also) helps!


Rob