Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Communication Ports, Ascii

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

4.1Communication 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	RS-232	RS-485		RS-485		RS-485
Parameter	(COM1)	(COM2)		(COM3)		(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	M1138	M1120			M1136
format
ASCII mode	Available for both Master/Slave					Available for
						Slave
RTU mode	Available for both Master/Slave					Available for
						Slave
ASCII/RTU mode	M1139	M1143			M1320
selection
Communication address	D1121				D1255
of Slave
Data length for access		100 registers
(ASCII)
Data length for access		100 registers
(RTU)
Default communication settings for all COM ports:
− Modbus ASCII

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