Omron CQM1H question - IO assignment

sutton

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S
Join Date
Mar 2003
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Dear all,

I have a omron PLC in our plant - CQM1H, and Im planning to buy an output slot to insert to the current system. However, I cannot see any I/O table in the program. The IO assignment is strange. Original program input can be 1.00, 2.00 and output points are 100.00. Please see the attached picture.

I would like to know how to assigned the I/O slot in the program. Please advice. thank you. :)

 
The CQM1H CPU doesn't have an IO table which defines the I/O adresses. Post a list of the all the CPU I/O units from left to right including any inner boards if available. Basically, digital inputs start at 0.00 and digital outputs start at 100.00.
 
compact logix programme

dear all,

i am using compact logix i need any sample programme how to create the inputs outputs and i dont how to give the adressing previously i have done the projetcs in slc but not in control logix and compact logix could anybody can give sample programme of compact logix hence we have redundency system in compact logix.

thanking you,

bye

prasad
 
The IO cards assignment

The first 2 slots are empty slot. 3rd one is ID212 which is digital input card. 4th one is OD212 which is digital output card. 5th card is tc202 and followed by ID212 and OC224.

In the program, 0.00-0.15 is used as input.
2.00-2.15 is used as input.
100.00- 100.15 is used as output.

I dont understand how the vendor allocate the IO table.
Please advice. thank you. :)
 
sutton said:
The first 2 slots are empty slot.
Click to expand...
You mean the inner board slots? There is no back plane so it can't have dummy slots.

3rd one is ID212 which is digital input card.
Click to expand...
This would be the first detachable unit next to the CPU? Then it uses 1.00-1.15, all CQM1H cpu's have 16 digital inputs built in, always allocated at 0.00-0.15.
4th one is OD212 which is digital output card.
Click to expand...
This would use 100.00-100.15

5th card is tc202
Click to expand...
The TC202 card uses 1 input and 1 output channel.
The input channel would be 2, and the output channel would be 101.

and followed by ID212
Click to expand...
Uses 3.00-3.15

and OC224.
Click to expand...
Uses 102.00-102.15

In the program, 0.00-0.15 is used as input.
2.00-2.15 is used as input.
100.00- 100.15 is used as output.
Click to expand...

Perhaps it is better to post a photo of the PLC rack. You state 2.00-2.15 is used as digital inputs, according to your description it would be assigned to the TC202 so either I am misreading something or you made a mistake.

See attached manual section 3-2-3 for more details on I/O allocation.
 
LOL you read my mind.
Like I suspected, you say the first input unit is an ID212, but in fact it doesn't have a type no, it belongs to the CPU. So see attached picture for correct assignment.

ScreenCap-0024.png
 
Digesting...

Hi P.D.L,

Thank you so much for your lighting response and advices. It really help. Im now reading the manual u posted here. im still working on it, see how the I/O being configured in the program.

Thanks a lot man! :)
 
Got ya!

:D:D:D

Thanks P.D.L. once again for solving my doubt.

From the manual i understand how the IO is being auto configured.

So my first slot: ID212 is I:0.00 (1 word)
second slot: OD212 is O:100.00 (1 word)
third slot: TC202 is I:1.00 & O:101.00 (1 word for I/O Chn each)
4th slot : ID212 is I:2.00 (1 word)
5th slot : OC224 is O:102.00 (1 word)

so if I added another output slot, then my 6th slot will be
6th slot : OD212 is O: 103.00

Hope Im getting right this time?
Once again, thank you very much! :D:D:D

sutton
 

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