Joke Collection Website - Blessing messages - Please write a program to send data with MODRW instruction of Delta PLC?

Please write a program to send data with MODRW instruction of Delta PLC?

Just add a set M 1 122 to the MODRW instruction.

M 1 122 is the post request of COM2. When using RS/MODRD/MODWR/FWD/Rev/STOP/RDST/RSTEF/MODRW command to send and receive data, you must set M 1 122 to ON with pulse command. If the above command is started, PLC will send and receive data. After executing the above command, m 165438+ will be set automatically.

COM 1 is M 13 12, and COM3 is M 13 16.

Hope to adopt. . . . . .