Hi,
I'm using the following code to read some Modbus ASCII data no problems
READMB2 3, 5, 101, DM[3],4
When I change the code to Modbus RTU I get no comms
READMB2 13, 5, 101, DM[3],4
I'm assuming that Comm 13 is COM3 RTU?
I'm using Wintech's modsim32, which works fine when configured as ASCII protocol but when I change to RTU, I get no data.
I use the setbaud function on a first scan
SETBAUD 3, &h03 ' SET COMM 3 RS485 8,1,N 9600
I would like to use standard RTU, as this is the most commonly used protocol in our control panels
Marcus