DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming
RUN/STOP Switch
Function Group
M1035
Number
Contents:
When M1035 = ON, PLC uses input point X7 as the switch of RUN/STOP.
COM Port Function
Function Group
Port
COM1 COM2 COM3
Item
Communication format D1036 D1120 D1109
Number
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) support communication format of
MODBUS ASCII/RTU modes. When RTU format is selected, the data length should be set as 8.
COM2 and COM3 support transmission speed up to 921kbps. COM1, COM2 and COM3 can be
used at the same time.
COM1:
Can be used in master or slave mode. Supports ASCII/RTU communication format, baudrate
(115200bps max), and modification on data length (data bits, parity bits, stop bits). D1036: COM1
(RS-232) communication protocol of master/slave PLC. (b8 - b15 are not used) Please refer to
table below for setting.
COM2:
Can be used in master or slave mode. Supports ASCII/RTU communication format, baudrate
(921kbps max), and modification on data length (data bits, parity bits, stop bits). D1120: COM2
(RS-485) communication protocol of master/slave PLC. Please refer to table below for setting.
COM3:
Can be used in master or slave mode. Supports ASCII/RTU communication format, baudrate
(921kbps max), and modification on data length (data bits, parity bits, stop bits). D1109: COM3
(RS-485) communication protocol of master/slave PLC. (b8 - b15 are not used) Please refer to
table below for setting.
Content
0: 7 data bits, 1: 8 data bits
b0 Data Length
(RTU supports 8 data bits only)
00: None
01: Odd
b1
Parity bit
b2
11: Even
b3 Stop bits 0: 1 bit, 1: 2bits
0001(H1): 110
0010(H2): 150
b4
Baud rate
b5
b6
0011(H3): 300
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