Sending a Signal to a Scada Unit

[Rich Ex]

Hi Friends ,
I’m sure this is a simple one but I can t get it working .

On my Scada slave I have an address that is mapped to input channel 13 ( real ) in my Rapid Scada .
I need to send a ‘1’ back to the Scada slave to reset the unit . Can anyone help please , I think I need an output channel but how does this map to the channel 13 , I have tried the Cmd function but this does not work .

Eventually I want to link this to code I have written that sends the ‘1’ at 1 second past midnight , this bit works ok as I see the status change on the channel , its just not sending it back to the Scada slave .

Thanks as always
Rich

[Mikhail]

Hi,

Do you use Modbus protocol?
If yes, you should create a command in the Modbus template. Then check the command by sending commands from Communicator.
Output channel is also needed. Please provide screenshots.

[Rich Ex]

Mikhail ,

Thanks it was my template as you suggested…. I had added the reset channel as a coil , but not under the ‘command’ tab . I have deleted this and added as a new command ‘1’ and now it works ..
Thanks as always

Rich

[Rich Ex]

Hi Mikhail ,
seems my automatic part does not work .
I can send the command ok in Communicator .
Here is my o/p channel

The formula I use to reset the unit at 56 seconds past midnight , I tested this on a dummy calculated channel and it works .

I know modified it to work on the o/p channel and it compiles ok but does not sent the reset signal on the o/p channel

I think i did something wrong around the Cmd command , can you help please .

Kind regards
Rich

[Mikhail]

Hi,

If you need to send commands automatically according to some conditions, Automatic Control Module would help you.

[Rich Ex]

Hi Mikhail ,
Is it not possible to send a signal from my formula then ?
My time code works I just need know the command to send ‘1’ to the o/p address I spoke about .

Thanks
Rich

[Mikhail]

Hi,
You can’t send a command from a formula. However, you can set input channel value from a formula.
To send commands according to conditions, Automatic Control Module was created.

[Author]

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