I have this project set up in order to read the signals from a Dywer. The signal I would like to read is on register 21. The issue I can see here is that the xActive will not turn TRUE. Is there something else that need to to be added to make this function?
Hi,
your slave address is set to 21 and the start address is 1. If you want to read fro register 21 than this needs to be the start address. The slave address depends on the settings of your slave device.
You have to manage your poll request in the way, that
1.FC3.xActivate → 2.FC3.xActive → 3.FC3.xSendRequest.
Not xActivate and xSendRequest at the same time.
Also, it will be usefull to see all blocks. Does master block starts up propertly?