I have a question regarding the PM8240 IEC61850 Digital Inputs (DI)

[jin1]

Hello,

I have a question regarding the PM8240 IEC61850 Digital Inputs (DI).

When the PANEL ON is activated, the DI State remains in the OFF state, but the Count increments by +1.

1. Why does the state not change from OFF to ON?
2. I am using the ICD file PM8000-Onb1-F01_E2V01. Is there a way to customize and retrieve the Count value?

Have a great day!

[Charles_Murison]

Hello @jin1 ,

The IEC61850 digital input data is updated once a second. If you read the DI state with ION, does the value report ON or OFF. Is the input a pulse or state change?  If input is pulse, the meter's state would change too fast to be read directly through IO state. The input state is not latched. 

The ION meter supports some custom analog inputs. You would need to link the count to the custom Analog IEC61850 module and update the CID file as needed. 

Regards,

Charles

[jin1]

Hello,

Thank you so much for your response!

I'm using a program to retrieve IEC61850 values, not ION, and while I'm able to retrieve all the AI values from the PM8240, I'm having trouble with the DI values.

I've had instances where the panel connected to the DI was turned ON and OFF within 1 second, and other times where it was kept ON continuously, but the state always remained OFF.

The count increased by 1 when it went from OFF to ON.
Input mode: pulse
Polarity: Non-Inverting
Debounce: 0.001
Assigned Port: Port S1
EventLog Mode: Log off
S1 state: OFF

The count is increasing, so it seems like the connection is fine. What other aspects should I check? I appreciate your help!

Additionally,

- could the issue be because I'm not using the DO??

- Is there a way to retrieve the count from the DI as a CUS AI? I looked through the Count module and Input module, but I couldn’t find it.

[Charles_Murison · Accepted solution]

Hello @jin1 

For information on how to map custom measurements to GGIO module, please refer to https://product-help.schneider-electric.com/PowerLogic-PM8000/en-us/content/03-communications/mappin....  For explanation on ION Meters and IEC 61850, please refer to https://www.se.com/ca/en/download/document/70022-0125/

As for the digital input, the module setup registers determine what the module will do. Refer to ION Reference for more details on module operation. The Input mode pulse should not prevent the state of the Input module from changing to ON. If you have a transition that is less than a second, unlikely to see the transition in IEC 61850. In situations where input is ON for a longer period of time I would expect to see the state change in IEC 61850

"could the issue be because I'm not using the DO?? "
- Not likely, there are some setup registers in the GGIO module that could change meter's behavior, between reading IO state and control.

"Is there a way to retrieve the count from the DI as a CUS AI?" 
Yes, need to look at mapping additional data to IEC 61850 link above.

Regards,

Charles

[jin1]

I have resolved all the issues, thank you very much.

However, a new problem has arisen. When I press the CID upload or delete buttons, ION SETUP shuts down unexpectedly. I’m not sure why this is happening suddenly.

Is replacing the device the only solution, or could updating from version 4.0.0 to 4.5.0 potentially resolve this issue?

Thank you for your assistance!

[Charles_Murison]

Hello @jin1 

I would not jump to replacing the device just yet. I would work with your local technical support to start a case to troubleshoot this. If possible to include video of what you see and well as provide a copy of the CID file. 

Note that ION Setup is not the only way to upload CID file to the meter. Other sFTP clients can be used if you are in a hurry to deploy.

Regards,

Charles