Zmotion ZMC420SCAN - 3.3. RS232 Serial Port; 3.3.1. RS232 Communication Interface Specification & Wiring

ZMC420SCAN Motion Controller Hardware Manual V1.5
3.3. RS232 Serial Port
RS232 is in one standard DB9 male socket and supports MODBUS_RTU protocol and
custom communication.
→ Interface Definition:
Terminal
PIN
Name
Type
Function
1、4、
6、7、8
NC
Spare
Reserved
2
RXD
Input
RS232 signal, receive data
3
TXD
Output
RS232 signal, send data
5
EGND
Output
Negative pole output of 5V power,
and output for the public end
9
E5V
Output
Positive pole output of 5V power,
maximum is 300mA
3.3.1. RS232 Communication Interface Specification &
Wiring
→ Specification:
Item
RS232
Maximum Communication Rate (bps)
115200
Terminal Resistor
No
Topology Structure
Connect correspondingly (1 to 1)
The number of nodes can be extended
1
Communication Distance
The Longer communication distance is,
the lower communication rate is,
maximum 10m is recommended.