Delta DVP-ES2 User Manual download pdf (Page 96)

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DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

Example 3: Modifying COM3 communication format

1. Add the below instructions on top of the program to modify the communication format of

COM3. When PLC switches from STOP to RUN, the program will detect whether M1136 is

ON in the first scan. If M1136 is ON, the program will modify the communication settings of

COM3 according to the value set in D1109

2. Modify COM3 communication format to ASCII mode, 9600bps, 7 data bits, even parity, 1 stop

bits (9600, 7, E, 1).

MOV

H86 D1109

SET M1136

M1002

Example 4: RTU mode setting of COM1、COM2、COM3

1. COM1, COM2 and COM3 support ASCII/RTU mode. COM1 is set by M1139, COM2 is set by

M1143 and COM3 is set by M1320. Set the flags ON to enable RTU mode or OFF to enable

ASCII mode.

2. Modify COM1/COM2/COM3 communication format to RTU mode, 9600bps, 8 data bits, even

parity, 1 stop bits (9600, 8, E, 1).

COM1:

MOV

D1036

SET M1138

M1002

SET M1139

H87

COM2:

MOV

H87 D1120

SET M1120

M1002

SET M1143

COM3:

MOV

H87 D1109

SET M1136

M1002

SET M1320

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