RSLinx Classic got an "Invalid Data"

Mudi

Member

M

Join Date

Sep 2020

Location

Indonesia

Posts

9

• Sep 27, 2020

• #1

My RSLinx Classic using ETHIP driver to communicate with RSLogix5000, it can browse the controller but when i tried to read the data via OPC Client the result has "invalid data".

This is an existing configuration and the data can be reads normally before (good), but suddenly the data becomes bad.

I've tried to renew the Topic Name and renew the driver configuration using both ETHIP and ETH driver, i've tried to clear cache but it doesn't work.

any suggestion for this? thanks in advance

 

harryting

Lifetime Supporting Member

H

Join Date

May 2002

Location

Puget Sound

Posts

2,595

• Sep 28, 2020

• #2

Have to you tried another client? There are OPC test client out there.

Also, have you just tried to use RSLinx's Data Monitor function? Can you see good data there?

doing the two thing above will give clue to where the problem lies.

 

Mudi

Member

OP

M

Join Date

Sep 2020

Location

Indonesia

Posts

9

• Sep 29, 2020

• #3

Harry, yes i have to tried using another client and has same result problem.

When i tried using RSLinx's Data Monitor function, i can't see the good data which is empty result on "value" column (attached)

 

rdrast

Lifetime Supporting Member

Join Date

Apr 2003

Location

South Carolina Lowcountry

Posts

5,544

• Sep 29, 2020

• #4

Check that your license is valid.
Without a valid license, RSLinx will only act as a communications device between the programming software and a CPU, not as an OPC server.

 

Mudi

Member

OP

M

Join Date

Sep 2020

Location

Indonesia

Posts

9

• Sep 29, 2020

• #5

rdrast, sure there is a valid license using RSLinx Gateway. and i tried to connect to another device using AB_PCIC its working normally and the data can reads good.

 

AlfredoQuintero

Lifetime Supporting Member

A

Join Date

Feb 2015

Location

Yokohama

Posts

1,544

• Sep 29, 2020

• #6

There are other clients that report the OPC error. Maybe you can try the Softing sample OPC client which will report an OPC error.

 

Mudi

Member

OP

M

Join Date

Sep 2020

Location

Indonesia

Posts

9

• Sep 29, 2020

• #7

Alfredo, thanks for the advice. The Architecture is RSLogix connected to 3 difference node that have their respective RSLinx licenses and all of it have the same problem that have "invalid data" on OPC Client. Parallel i tried to disconnected all node except 1 node to continue troubleshooting.

I got the messages log when i tried to open data monitor for my device (attached)

any suggestion are wellcome

 

harryting

Lifetime Supporting Member

H

Join Date

May 2002

Location

Puget Sound

Posts

2,595

• Sep 29, 2020

• #8

The problem is with RSLinx or further upstream. You do not need a license for the Data Monitor function to work.

I would continue troubleshooting the network. A few things I can think of:

- ping to the PLC ok?
- Have you reset the card?
- Duplicate IP?
- Are you able to a MSG read from other PLC?

 

Mudi

Member

OP

M

Join Date

Sep 2020

Location

Indonesia

Posts

9

• Sep 29, 2020

• #9

Harry, thanks for the support. this the answer of your question:

- ping to the PLC ok? ping ok
- Have you reset the card? yes i have
- Duplicate IP? no, its single IP
- Are you able to a MSG read from other PLC? yes, its able

 

Mudi

Member

OP

M

Join Date

Sep 2020

Location

Indonesia

Posts

9

• Sep 30, 2020

• #10

Oh after redudancy module has been restarted my hmi client can works normally, but when i tried retrieve the data via OPC Client my RSLinx always stoped working. any suggest for this issue?

 

Mudi

Member

OP

M

Join Date

Sep 2020

Location

Indonesia

Posts

9

• Sep 30, 2020

• #11

Oh thanks for the suggestions, the problem finally solved after restarting the redudancy module and renew the driver configuration. maybe the problem happened because the reduancy module not synch.

Stay safe and have a nice day all!