OPC Write value issue – Matrikon Simulation

[bencyau]

I am just using the Matrikon Simulation OPC Server for testing, and I can read all the values desired within RapidScada with no issue.

Using MatrikonOPCExplorer I can set the “Bucket Bridge.Boolean” between 0 and 1.

I configured RapidScada Communicator for the above channel as “write data” with a command number 1. Sending command from the Communicator “Commands” tab got “The command was sent successfully”. However, the value in the “Device Data” tab does not seem to change.

Thanks for your help.

[Mikhail]

Hi,

The command was sent successfully

This means just sending to the Communicator service.

See what is written in the communication line log in Communicator at the moment right after you send a command. You can find logs in C:\SCADA\ScadaComm\Log

[bencyau]

OK. My mistake found after finding the message below in the line log file:

2018-06-18 09:25:58 Command execution is disabled by the communication line parameters

Turns out I missed checking the “Commands Enabled” box in the Communication Line Parameter tab.

Problem solved, now I can write to the OPC server tags.

Thank you.

[Mikhail]

Great ))

[mariodavid]

I’m using an OPC server to connect to a PLC plc s7-300. I did everything that is said above but the value in the “Device Data” tab does not seem to change.

“2018-09-12 10:41:02 Device 81. Handle current data changing. Subscription: llenado.diesel
Device 81. Process tag. Name: PLC1.Generic.sensor-nivel-bajo-tanque-prinicipal. Value: True. Quality: good

2018-09-12 10:41:03 Device 81. Handle current data changing. Subscription: llenado.diesel
Device 81. Process tag. Name: PLC1.Generic.sensor-nivel-bajo-tanque-prinicipal. Value: False. Quality: good

2018-09-12 10:41:02 <CONTROL-PC><SYSTEM><ACT> The command is received from file: type=Standard, device=81, number=4”

i want set the tag to true but
immediately changes to false

how can i do?

• This reply was modified 7 years, 3 months ago by mariodavid.

[Mikhail]

I answered here.

[Author]

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