Instruction MSG

[LAMISA]

I have a question about the MSG instruction : can my block MSG so spend several cycle times so that it is finished (bit DN), during these a few cycle times the values of the data table sent change, sends it the original data table (at the time when instruction MSG was thus activated it should store it some share in memory) or it updates the data table in "live" and sends the values which it has at the time when such or such word is sent??

I hope that I am made understand and that somebody has the answer... sorry for my english...

thank you

 

[Skogsgurra]

What system is your question about? There are quite a few.

Gunnar Englund

http://www.gke.org

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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...

 

[LAMISA]

i use a controllogix (CPU 1756-L6x) with RS Logix 5000 as software and the communications are between:

- CLogix and CLogix
- CLogix and PLC5

Do you need others informations?

 

[jde777]

If you want to prevent data from changing during the the copy operation use the CPS instruction. Otherwise if you want to allow it to change use COP.