1747-L40C communications

[Mickey]

How was the OIT connected to the old processor? Can you tell us more about this OIT make and model number?

The file you post still has a lot of edits in it.

 

[usstrap]

OIT is made by uniOP
CP04F-04-1921s/w ver 4.08
It is supposed to give operators full access to all timers, etc. but I don't want that. It is best just for info displays. There are a handful of alarm display scans in the ladder rungs where change of state in key areas needs to display; alarms, etc. The PLC just tells the OIT to display one pre-loaded line of text or other.

 

[Mickey]

There web site doesn't list that model. Do you have a link to the manual?

 

[usstrap]

Here are a few pages from manual. ARPAC has it private labeled so they have their own part number probably.

 

[usstrap]

Re: the edits - This PLC originally ran a packaging machine and shrink tunnel. I needed to build another machine that had to work alongside this one. There was enough I/O left that I could do what I wanted. I added the program changes for this to the original ladder file. Any references to conveyors and perforator are about this.

 

[Mickey]

From the manual you posedt page 4 for the cable you need and pages 16,17 for how to setup the comm ports.

It says nothing about programming the unit so you are on your own there.

 

[Lancie1]

The database shows all I/O at both addresses but the ladder display still shows the old base unit addresses and errors re the unconfigured I/O. How do I put this right?

Now that you have converted your I/O addresses, your program appears to have both old addresses at I:0 and O:0, and new addresses. You should delete the old stuff to avoid confusion (probably easiest way is "Tools, Database, Delete Unused Addr). Also check the shorted rung branch on Rung 0072 - something got left out.

 

[usstrap]

thanks for the look and advice. I have an old set of disks for a program called Designer for Windows by Exor. It's for programming these OIT units from UNIOP.