I/O Not Responding...???

kandymann · Aug 1, 2011

So I understand that I must configure my I/O modules.

I have three modules

In slot 1: 1769-IA16/A Rev 2 (F/W Rev. 3.1)
In Slot 2: 1769-OW16/A Rev 1 (F/W Rev. 1.1)
In slot 3: 1769-IF4XOF2/A Rev 2 (F/W Rev. 1.1)

What does the (F/W Rev. X.X) indicate?????
Is this the revision I need to place in the configuration or the other Rev?

When I try to configure my Revision in the properties menu, I can only select a revision 1 or 3 in the drop down box. There is no Revision 2 to select.

The electronic keying is set to compatible.

Any help with troubleshooting this issue would be very helpful!

Thanks guys

Kandy

Mickey · Aug 1, 2011

Do you have a end cap installed?

http://literature.rockwellautomation.com/idc/groups/literature/documents/in/1769-in015_-mu-p.pdf

kandymann · Aug 1, 2011

Mickey said:
Do you have a end cap installed?

http://literature.rockwellautomation.com/idc/groups/literature/documents/in/1769-in015_-mu-p.pdf

Yes I believe so. The lights on my I/O modules are on and I haave slid the "end cap" to the left in the backplane.

The end cap goes left to lock and right to unlock.

Correct?

Ken Roach · Aug 1, 2011

Yes, the 1769-ECR connector clicks in to the left, similar to the other connectors on the 1769 bus.

Absence of an End Cap generates a characteristic CPU Major Fault, rather than a configuration error message in RSLogix 5000.

Look on the Connection tab in RSLogix 5000 and see if there's a useful error message there.

kandymann · Aug 1, 2011

I get these fault codes/errors

Major Fault: (Type 03) I/O Fault
(Code 23) At least one required connection not established before going into RUN mode.

Minor Fault: (Type 03) Unknown fault
(Code 00) Unknown fault.
Fault Information Dump:
Info[0]: 00000000
Info[1]: 00000000
Info[2]: 00000000
Info[3]: 00000000
Info[4]: 00000000
Info[5]: 00000000
Info[6]: 00000000
Info[7]: 00000000

Ken Roach · Aug 1, 2011

That's the "characteristic CPU fault" I was talking about. It causes a flashing red OK LED on the controller and puts the controller actually in FAULT mode. It ought to be clearable, and then appear only in the history.

I don't have the manuals handy, but some of the 1769 analog I/O modules have an option to use external 24V DC power. Check yours to see if there's a slider switch to select external power and be sure the power is hooked up correctly.

kandymann · Aug 1, 2011

Ken Roach said:
That's the "characteristic CPU fault" I was talking about. It causes a flashing red OK LED on the controller and puts the controller actually in FAULT mode. It ought to be clearable, and then appear only in the history.

I don't have the manuals handy, but some of the 1769 analog I/O modules have an option to use external 24V DC power. Check yours to see if there's a slider switch to select external power and be sure the power is hooked up correctly.

You are right. I do not have an external power source connected to the module.

I instead disconnected the analog module from the back plane.

I now have just the Input and Output modules connected. I reconfigured the I/O modules and still the I/O is NOT responding.

Dravik · Aug 1, 2011

Can you post the program in zip format? We can check and make sure it looks kosher for the I/O config.

Dravik · Aug 1, 2011

Oh yeah, did you push the program w/ the new I/O config to the plc after you made the changes?

kandymann · Aug 1, 2011

Dravik said:
Oh yeah, did you push the program w/ the new I/O config to the plc after you made the changes?

yes

kandymann · Aug 1, 2011

Here is the zip file

Thank you so much for your help!

bernie_carlton · Aug 1, 2011

There's no IP address in the Ethernet port. I'm not sure if that will cause the fault though.

kandymann · Aug 2, 2011

bernie_carlton said:
There's no IP address in the Ethernet port. I'm not sure if that will cause the fault though.

Ok I see. You saw this in the Who Active correct?

Do I assign an IP thru RSlinx?

kandymann · Aug 2, 2011

Is it possible that I need to flash the firmware for a particular module?

I have not seen any info for or against it.

Ken Roach · Aug 2, 2011

No, this isn't a firmware issue.

Does the CPU itself go into Fault mode, or is there just a fault on the I/O modules in the I/O tree ?

Does the Connection tab show a fault code, for each module ?

I/O Not Responding...???

kandymann

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