Studio 5000 Single Msg Writes?

theColonel26

Lifetime Supporting Member
Join Date
Feb 2014
Location
West Michigan
Posts
781
Is there any good way to send actually messages to another PLC?

The MSG instruction isn't really a message it just continuously writes to a tag in a remote PLC. I want to be able to actually send a PLC a set of data only once, an then get an Ack back that that data was received.

Normally how this is done is you have a giant UDT that has tags and an Ack for every possible "Message" you may ever want to send. So you might have a UDT that has like 100 different Tags for like 20 messages, and all of that data is sent every all at once continuously.
 
The MSG instruction isn't really a message it just continuously writes to a tag in a remote PLC.
In Logix 5000, MSG writes only once if you properly configured it.
It writes on rung transition from false to true only once.
Rung condition should go from true to false and back to true to write data again.
 

Similar Topics

Compactlogix controller, program has 28 conveyors that use TON's to start the conveyors. The TT sounds a warning horn during start and the DN...
Replies
7
Views
141
I have to start out by saying I am not a PLC programmer and I have basic programming skills but mainly use software as a troubleshooting tool. I...
Replies
0
Views
47
Hi everyone, I was wondering how we declare Persistent Variables in Studio 5000 (main reason to keep the values during power cycle and program...
Replies
5
Views
182
I'm adding an IAI Gateway with 2 axes connected to it. To an ethernet network on my PLC. So, I think the math is correct on the Input and Output...
Replies
0
Views
70
I downloaded v24 for studio 5000 but canā€™t find where the download manager put it! Any help? Iā€™ve done it before but canā€™t remember. Thanks
Replies
7
Views
207
Back
Top Bottom