gropolack
Member
Hello,
I have an application Intouch connected to a S7-400, through Dassidirect 1.5, and everything works
Besides that, I have a third party application that communicates through DDE with Intouch, and which sends twenty parameters.
These parameters are configured in the application intouch with min and max.
The problem is that sometimes, some parameters are not properly written to the PLC. This problem occurs if the value sent by the DDE application is equal to the minimum value set in Intouch, AND if the value in the controller is less than the minimum ...
So for example if:
1) I have a parameter, set to 10 in Intouch minimum value,
2) A value of 0 in the PLC
3) my DDE application sends 10, I get:
- 0 in the PLC
- 10 displayed in the supervision ...
which is quite annoying ...
So, I have 2 questions:
- Does anyone have already encountered this problem?
- How to configure it to Intouch properly read tags on my machine? (If I have 0 in the PLC, Intouch always displays the minimum values, 10 by exemple ... But I want the true value!)
Any ideas ?
I have an application Intouch connected to a S7-400, through Dassidirect 1.5, and everything works
Besides that, I have a third party application that communicates through DDE with Intouch, and which sends twenty parameters.
These parameters are configured in the application intouch with min and max.
The problem is that sometimes, some parameters are not properly written to the PLC. This problem occurs if the value sent by the DDE application is equal to the minimum value set in Intouch, AND if the value in the controller is less than the minimum ...
So for example if:
1) I have a parameter, set to 10 in Intouch minimum value,
2) A value of 0 in the PLC
3) my DDE application sends 10, I get:
- 0 in the PLC
- 10 displayed in the supervision ...
which is quite annoying ...
So, I have 2 questions:
- Does anyone have already encountered this problem?
- How to configure it to Intouch properly read tags on my machine? (If I have 0 in the PLC, Intouch always displays the minimum values, 10 by exemple ... But I want the true value!)
Any ideas ?