Delta DVP-15MC Series, Operation Manual

Page: 62 / 972

Chapter 6 Wiring, Communication Setting and Network Construction
6-13
6_
6.4 RS-232 Communication Port
6.4.1 Function that RS-232 Port Supports
The RS-
232 communication port of
the
motion controller can function as Modbus master or slave. HMI, PLC
or other Modbus device can read and write data in the devices inside
the
motion controller. The progrom can
not be downloaded through RS-232 port. RS-232 supports Modbus protocol, ASCII mode as well as RTU
mode. The function codes which RS
-
232 port supports include
16#01, 16#02, 16#03, 16#05, 16#06, 16#0F
and 16#10. The station addresses that RS
-
232 port supports are 1~255. The broadcast function is not
supported.
Refer to appendix A for details on Modbus communication and Modbus device addresses.
6.4.2 Definitions of RS-232 Port Pins
The
motion controller
’
s COM/SSI port consists of 15 pins. See the table below for definitions of respective
RS-
232 communication port pins.
Pin No. Signal Definition
COM/SSI
3 Tx
Transmitting data
9 Rx
Receiving data
5 GND
Signal ground
6.4.3 RS-232 Hardware Connection
D V P15M C 11T
C O M R S -232 por t w iri ng
（ ）
F
uncti on
P
in
P in
F
unction
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
T XD
R X D
G N D
R X D
T XD
G N D
D T R
D SR
R T S
C T S
P C

RS-232 port is connected to HMI when the motion controller functions as a slave.