Get Tag Current Value in RSLinx OPC-DA

[Former Member]

Hi All,

We are try get tag current values with UDS in OPC-DS RSLinx and we received the error below:

Problem with tag: "[CAL]ANO", due to: Quality Error, Expecting: Good, Received: "Bad, Out of Service, Not Limited".

On RSI-OPC Test Client the values are show correctly.

We are using:

SAP-MII 12.1.7

UDS Version 4.0.322

Framework Version 4.0.3.22

Host Version 4.0.3.22

The UDS Configuration is below:

cache

Mask 😘

Mode :Cache With Dynamic Metadata

Host :5

Collect Requests :false

Connection Wait Time :5000

Log Level :Info

MaxReconnect Sleep time :1000

Maximum Concurrent Connections : 100

Monitor Cycle :15

Pool Size :5

Port :8085

Runtime Mode :Sevice

Service Dependencies :Eventlog

Service Password :

Service Startup :Manual

Service User :.\LocalSystem

Shutdown timeout :10

Stack Sise

Treading Model :MTA

Trusted Requesters :

Use IOCP :true

OPC-DA

Acceptable Data Quality :Good

Acquisition Mode :Synchronous

Activate Items :Read Items Only

Automatically Reconnect :true

Force flat namespace :true

Group Update Rate

Include Quality :No

OPC Group Name :LHDS_OPCGROUP

OPC Group Number :1234

OPC Server :localhost; RSLinx OPC Server; OPC DA2

Read Delay :1000

Read From Device :false

Startup Delay :1000

Could I have some help?

[Former Member · Accepted solution]

Marcelo,

Have you tried a different setting in the Acceptable Data Quality property?

Kind Regards,

Diana Hoppe

[Former Member · Accepted solution]

Yes, I do.

But there was no difference, when I assign the value "Good" shows the above error, when I assign the value "uncertain" shows the error "Problem with tag:" Year ", due to: Quality Error, Expecting: Uncertain, Received:" Bad , Out of Service, Not Limited "."

Now we can solve. The problem is in property "Read from Device" which was assigned "false", assigning "true" for this property we can see some tag values.

Now we have another problem, but I'll close this and open another call to the new problem.