Delta DVP-ES2 - Manual (Page 604)

D V P - E S 2 / E X 2 / S S 2 / S A2 / S X 2 / S E O p e r a t i o n M a n u a l - P r o g r a m m i n g
4.1 Communication Ports
DVP-ES2/EX2/SA2/SE/SX2 offers 3 communication ports (COM1~COM3), and DVP-SS2 offers 2
COM ports (COM1~COM2). COM ports of the above models support DELTA Q-link communication
format on HMI. Refresh rate of HMI can be increased by this function.
COM1: RS-232 communication port. COM1 can be used as master or slave and is the major COM port
for PLC programming. (It is not applicable to DVP-SE.)
COM2: RS-485 communication port. COM2 can be used as master or slave.
COM3 (ES2/EX2/SA2/SE): RS-485 communication port. COM3 can be used as master or slave. (For
DVP-ES2-C, COM3 is the CANopen port.)
COM3 (SX2): Conversion from the USB port to RS-232 port. COM3 can be used as slave only.
The 3 COM ports on the models mentioned above support Modbus ASCII or RTU communication
format.
USB (COM1) (SE): USB communication port. It only can be used as a slave. The communication
mode and format can not be modified.
Communication Format:
COM port
Parameter
RS-232
(COM1)
RS-485
(COM2)
RS-485
(COM3)
RS-485
(SX2 COM3)
Baud rate 110~115200 bps 110~921000 bps 110~115200 bps
Data length 7~8bits
Parity Even / Odd / None parity check
Length of stop bit 1~2 bits
Register for Setting D1036 D1120 D1109
Retain communication
format
M1138 M1120 M1136
ASCII mode Available for both Master/Slave
Available for
Slave
RTU mode Available for both Master/Slave
Available for
Slave
ASCII/RTU mode
selection
M1139 M1143 M1320
Communication address
of Slave
D1121 D1255
Data length for access
(ASCII)
100 registers
Data length for access
(RTU)
100 registers
Default communication settings for all COM ports:
− Modbus
ASCII
4 - 2