Omron (CX-Programmer)

King-snorre

Member
K
Join Date
Dec 2014
Location
Norway
Posts
6
Hallo,

Have some questions, I've been doing this old Omron C200HG
and I am now going to use CJ2M, but i have a question what does this sign mean??
WUA+ctyCUcfUNTB1DUxdA1PXwNQ1MHUNTF0DU9fA1DUwdQ2+Q4Y84zFv3LMAAAAASUVORK5CYII=
i know the adress but I have never seen this sign before, please help!!
 
That's an "immediate refresh" of the normally closed I/O point. It means the PLC will get the current state of the I/O point instead of using the state at the end of scan I/O update.
 
Thanks, that helps allot!
I have used this differentiate put then it comes up an arrow, pointing down or up.
Are you good in the old C200HG PLC?? :)
 
Just fired up CX-Programmer and added some dummy code.
Looks like that is a contact from a DIFU instruction.
Top rung shows a DIFU contact, and Immediate Refresh to a DIFU instruction.
Second rung show a contact from the DIFU instruction to a coil.
Just wanted to verify the symbols.

Hope this will help.

DIFU_Sample.jpg
 
HR is the Holding Relay area.
This memory area is valid in both C200HG and CJ2M processors.
C200HG will have 100 channels of HR (H00-H99). This can be addressed at the bit level (H00.00 - H99.15).
CJ2M will have 512 channels (H00-H511), also addressable to the bit level.

HR memory will retain on / off status through power failure.

I remember when the C200HG was introduced, as do a few others around here.

Hope this helps.
 

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