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COM2:
MOV
H87
D1120
SET
M1120
M1002
SET
M1143
Example4: Interruption I170 (after the data receiving is completed in Slave mode)
1. COM2 of ELC-PV controllers supports the generation of interrupt I170 when the data
receiving is completed in Slave mode.
MOV
H86
D1120
SET
M1120
M1002
SET
M1143
FEND
IRET
END
I170
EI
2.
With I170 in the program, when COM2 is in Slave mode and there are communication data
coming in, the ELC will process the data and respond immediately.
Notes:
1.
DO NOT update program on-line when using I170.
2.
The scan time of the ELC will be slightly longer.
Function Group
ELCM-PH/PA COM Port Function
Number
Port
Item
COM1
COM2
COM3
Communication format
D1036 D1120
D1109
Communication setting holding
M1138 M1120 M1136
ASCII/RTU mode
M1139 M1143 M1320
Slave communication address
D1121
D1255
Contents:
COM ports (COM1: RS-232, COM2: RS-485, COM3: RS-485) in ELCM-PH/PA support
communication format of MODBUS ASCII/RTU modes. COM2 and COM3 support transmission
speed up to 921kbps. COM1, COM2 and COM3 can be used simultaneously.
COM1:
Содержание ELC-PB
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