YASKAWA JEPMC-MP2300-Y Series

4.5
Communication Module (Optional) Connections
4-65
( 3 ) Connector Pin Arrangement
[ a ] PORT Connector
The PORT connector is used to connect the MP2300 to computers and HMI devices via an RS-232C
connection.
[ b ] RS422/485 Connector
The RS422/485 connector is used to connect the MP2300 to computers and HMI devices via an
RS422/485 connection.
Pin
Number
Signal
Name
Description
Pin
Number
Signal Name Description
1FGFrame ground 6 −−
2SDSend data 7SGSignal ground (0V)
3RDReceive data 8 −−
4RSReady to send 9ERData terminal ready
5CSClear to send
1
69
5
Pin
Number
Signal
Name
Description
Pin
Number
Signal
Name
Description
1
TX+
Transmission data + 8
TX+
Transmission data +
2
TX−
Transmission data
−
9
TX−
Transmission data
−
3
RX+
Reception data + 10
RX+
Reception data +
4
RX−
Reception data
−
11
TXR
Transmission data
terminator
5 −− 12
−
−
6
RX−
Reception data
−
13
VCC
Power supply (
+5 V)
7
RXR
Reception data
terminator
14
GND
Ground
1
814
7

Always keep the communication cable separate from the drive, control, power supply, and other transmission
systems.

The maximum length of RS422/485 is 300 m. Keep all cables as short as possible.

The 217IF-01 Module’s RS422/485 interface is not an isolated system. Noise from connected terminals may
cause malfunctions. If malfunctions occur, use a shielded cable, modem, or other measure to reduce noise.
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For RS422 connections, add terminator to the reception terminal if required.

For RS485 connections, add terminator to the nodes at both ends of the transmission line.
Terminator
RXR
RX(+)
RX(-)
TXR
TX(+)
TX(-)
7
3,10
4, 6
11
1, 8
2, 9

Terminator has been included, as shown in the
following diagram. If you need to add terminator,
connect RXR to RX (-) and TXR to TX (-).
Leave RXR and TXR open if not adding terminator.