Delta AS Series Programming Manual page 920

3. The communication setup for this example is RS485 ASCII, 9600, 8, E, 1 (SR209=16#0025).
4. Set the communication timeout to 3000ms (SR210=3000).
5. Set the communication mode to ASCII mode (SM210=OFF).
6. Enable the communication protocol (SM209=ON).
If you set up the communication port with the COMDF instruction (API 1813), you can ignore this step.
If you set up the communication port in ISPSoft－＞HWCONFIG－＞COM Port, you can ignore this step.
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