M2DC Series Hardware Manual
140
Rev. 1.1
2018/04
400-820-9661
9 Communication
M2DC series servo drives support multiple communication interfaces
.
Model type
Communication
-Q
RS-232
-R
RS-485
-C
CANopen
-IP
Ethernet
-D
9.1 RS-232 communication
For Q type drives, port CN6 is the RJ-11 communication port for RS-232 communication. MOONS’ SCL
serial command language can be used to control the drive.
9.1.1 What is SCL?
MOONS’ SCL, or Serial Command Language, was developed by to give users a simple way to control a
motor drive via a serial port. This eliminates the need for separate motion controllers or to supply control
signals, like Pulse & Direction, to step and servo motor drives. It also provides an easy way to interface to
a variety of other industrial devices like PLCs, industrial computers, and HMIs, which often have standard
or optional serial ports for communication.
NOTE: For more details about SCL commands, please download the Host Command Reference manual
from MOONS’ website.
9.1.2 RS-232 Connections
For servo drive port CN6, the RJ-11 pin definitions are as follows:
PIN
Definition
1, 3, 6
Not used
2
RX
4
TX
5
GND
9.2 RS-485 Communication
R type drives use ports CN6 and CN7 with a standard RJ45 (8p8C) design. They can be used to build
RS-485 daisy chain networks. In addition to the SCL command control methods, Modbus/RTU can also
be used to control the drives.
9.2.1 RS-485 PIN definition
For RS-485 communication, the dual RJ45 connectors on the side of the drive can be used to build a
daisy chain network system.