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DB_87505971-Visitor
1-Visitor
October 5, 2022
Solved

Values in quick client not updating

  • October 5, 2022
  • 2 replies
  • 2633 views

I am running demo version of KepwareEX and communicating Modbus to a device. IP addresses are on same subnet and can ping the device. However, when running quick client the update count stays at one for all tags? Even the ones form statistics and system tags do not update? The quality is good on all tags but none of them are updating. Any ideas?

Best answer by DB_8750597

Ok got it figured out finally. I was off by one in my addressing and also had to change setup on zero addressing for Modbus to make it work. 

2 replies

N
nmilleson17-Peridot
17-Peridot
October 5, 2022

@DB_8750597 ,

 

Few things to consider:

 

1. What is your scan rate and how is the client respecting that (tag-specified or otherwise)?

2. Can you see values updating on the PLC? 

3. Any errors in the logs?

 

-Nick

D
DB_87505971-VisitorAuthor
1-Visitor
October 5, 2022

1. Values I have set to default to update once per second. 

2. No values updating in Quick Client or PLC.

3. Error log is attached. No errors. 

 

N
nmilleson17-Peridot
17-Peridot
October 5, 2022

@DB_8750597 ,

 

If values are not updating in the PLC, then they will not update in Quick Client either.  Are these read/write properties that you're trying to write to or are you just trying to read them from the PLC?

 

-Nick

D
DB_87505971-VisitorAuthorAnswer
1-Visitor
October 5, 2022

Ok got it figured out finally. I was off by one in my addressing and also had to change setup on zero addressing for Modbus to make it work. 

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