ltrail
Member
Folks. I have a S7 PLC with a security program to monitor doors, temperature (analog), electric service voltage (logic). I have a Siemens TP070 HMI that displays the various values. However, the string output function to the TP070 requires string variables located in the S7 memory. I've not discovered a MicroWIN software method to introduce such. I see all kinds of manipulative functions to work with string variables, but not how to embed them. I believe that I just need a jump start here.
As an example, I'd like to call, say, VB20 to be "Front Door Ajar". Or, VB50 to be "No Electric Service", VB60 to be "Electric Service Normal".
Would someone give me pointers to establishing these string variables embedded into my S7 program? Thanks
As an example, I'd like to call, say, VB20 to be "Front Door Ajar". Or, VB50 to be "No Electric Service", VB60 to be "Electric Service Normal".
Would someone give me pointers to establishing these string variables embedded into my S7 program? Thanks