cj2m expansion rack issues

[GNP]

Hello,

I am trying to get a system going, for it's first time, that has an expansion rack. 

Hardware configuration is:

MAIN RACK:

PS = PA205R

CPU = CJ2M-CPU31

CJ1W-II101

CRM21

7 X AD08-V1

1 X DA08-V1

 

EXPANISION RACK:

PS = PA205R

CJ1W-IC101

IA111

ID231

ID231

ID211

OD232

main rack seems to be working okay

Expansion rack I/O led's on the boards appear to be indicating the I/O status correctly

Both power supplies appear to be okay, displaying "FUL"

The connecting cable is a CS1W-CN223

I have verified the II and IC boards are connected properly and the cable is properly seated. out to the in. Even tried reversing which end is plugged into II101 and IC101.

Using automatic allocation but when we transfer the I/O table to CX Programmer the main rack comes back as expected but the expansion comes back as empty slots for all.

I tried creating an I?O table and sending it to the PLC but that only created a fatal error because the CPU does not see an expansion rack..... I think.

Am I being brain dead and missing something obvious that I need to do?

From what I have read this part should be somewhat "plug and play"

Any thoughts would be greatly appreciated as I am on site doing a start-up and short of replacing boards and cables, which I don't have, I'm stuck and Omron Tech support doesn't open until tomorrow.

Thanks in advance :)

 

 

[Jay Anthony]

IC101 belongs on Main Rack.

II101 belongs on Expansion Rack.

[GNP]

Sorry my typo. 

that is how it is. 

Only "out" on the main rack

"in and out" on the expansion rack. 

Other than physically connecting it is there a setting required I am missing?

 

[Jay Anthony]

Should work.

Do you have the jumper on the Expansion rack power supply for 120VAC?

Sorry. My bad,  There is no jumper.

[Jay Anthony]

Had another guy in Great Britain have the same issue and he had a bad IC101.

[Jay Anthony]

Look for bent pins on the bus connectors between each module.

[GNP]

did all the physical stuff.... in detail.

I was hoping that there was some setup I was missing.

If that is not the case I'm thinking I may have some bad hardware.

Which I was, am, struggling with. I have been playing on and off playing with Omron gear for the last 20 years and I have only ever changed two boards. One of which I inadvertently blew up :)

[Jay Anthony]

Stupid question:  Do you have the end cover terminators in place on both racks?

Also the IC101 should be placed next to the CPU.

The II101 should be placed next to the power supply.

[Jay Anthony]

Btw: Going to the rodeo next month?

[GNP]

yes, yes and yes.

Thanks for the quick responses. I have read many of your posts.

Actually I think I am using your Function block for scaling analog inputs to real values in this program for scaling 37 storage tank ultrasonic sensors into a volume for use in supervisor.

 

 

[Jay Anthony]

Good luck pardner.  Sounds like you ought to pack it up and head to the hotel.

[GNP]

I think your right!

I will post the outcome once I know it.

By the time the rodeo happens I will probably be back home in the east........ maybe.

 

Thanks for the help

 

 

[Jay Anthony]

37 loops to commission?  You might still be there.  It's a great rodeo.

[GNP]

So..... Won the lottery and found a II101 and a IC101 on the shelf here in Edmonton. No cable, but what are the odds. Swapped both boards, don't have time to sort out which is the issue  

Put things back together and test... No go! ?

On the phone with Omron tech support tried all the things we have already said plus a couple. Decided to strip both racks and install one board at a time and see what happens.

To shorten the story. The fourth AD08-v1 in the main rack when not in the system the expansion rack shows up as expected..... What the *@&**%^* ?

Removed  and replaced three times to prove the theory. Story checked out.

Put the whole system back together as it is supposed to be be, less the AD board, power up the system, all is good.

For the heck of it put the "offending board" back in the system physically and unit number where it was, just to see what happens.... It is now working?

Been about 8 hours now with multiple restarts hasn't skipped a beat  

Not feeling warm an fuzzy about this as I don't have a definitive  answer to the issues we saw, will replace the AD card even those van it is currently working. 

 

 

[Jay Anthony]

Sounds like the bus connectors on that AD card are flakey.

[Crossbow]

Or perhaps you are at the power supply limit of the rack.  Analog cards take a lot of bus power.

[Michael Walsh]

Just now, Crossbow said:

Or perhaps you are at the power supply limit of the rack.  Analog cards take a lot of bus power.

Good thought, but it looks ok (If I used all the correct modules anyway):

The consumption data would turn red if the power supply could not meet the current requirements.

power consumption.bmp