MicroLogix-EIP devices, configurations for Inputs/Outputs

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ketxu
Posts:7
Joined: Mon Oct 05, 2015 1:44 pm

MicroLogix-EIP devices, configurations for Inputs/Outputs

Post by ketxu »

Hi everyone.

We are using MicroLogix PLCs through EIP driver, included in WinCCOA. The documentation says that input/output signals are addressed setting the "Num" gap in the address configuration with a value "1" and "0", as booleans are addressed with value "2", integers with value "7", etc.

We have some signals to monitor some devices status and alarms and configured in that way, we are not able to see values changing. Instead of this configuration, we saw that the correct way to configure inputs and outputs is using different numeric values for all the signals (from 1 to 999, as the wizard offers you to select what you want) :blink: :blink: . We try to use, for example, in this way (and apparently, it works fine): lights, from 100 to 199 registers, electrical signals, from 900 to 999, sensors, from 800 to 899... And more group of signals are distributed like that.

You can see this with the image I've uploaded.

Is this way the correct one to address the signals? The WinCCOA documentation is not as clear as we want and we need to solve this situation to continue working correctly.

Thank you Image
Attachments
EIP_Configuration.png

pwbarrett
Posts:9
Joined: Mon Jan 31, 2011 10:18 am

Re: MicroLogix-EIP devices, configurations for Inputs/Outputs

Post by pwbarrett »

Hi -
You are doing this correctly -
Your example is reading word number 994 from the O file, and extracting bit 4 from that.

In the "Num" section of the documentation, please disregard everything after the first two sentences.
All the text about default instance numbers is pointless and misleading - sorry about that.

-- Paul

2 posts • Page 1 of 1