ZMC408SCAN Motion Controller Hardware Manual V1.5
3.5.
RS232/RS485 Serial Port
RS232 and RS485 are integrated in one standard DB9 male socket and supports
MODBUS_RTU protocol and custom communication.
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Interface Definition:
Terminal
PIN
Name
Type
Function
1, 6, 8
NC
Spare
Reserved
2
232RXD
Input
RS232 (port 0) signal,
receive data
3
232TXD
Output
RS232 (port 0) signal, send
data
4
485A/+
Input/Output
RS485 (port1) signal A/+
5
EGND
Output
Negative pole output of 5V
power, and output for the
public end
7
485B/-
Input/Output
RS485 (port1) signal B/-
9
E5V
Output
Positive pole output of 5V
power, maximum is 300mA
