Communication specifications, Connector pins and signal names of port 1 – Yaskawa MP940 Hardware Manual User Manual
Page 26
MotionSuite™ MP940 Machine Controller Hardware Manual
Section 5: Communications
23
Communication Specifications
Connector pins and signal names of port 1
Item
Specification
Interface
RS-232, 1
Port
RS-422/485
1 Port
Connector
RS-232 PORT1
MDR-14pin/female
RS-422/485 PORT2
MDR-14pin/female
Transmission
Range
RS-232:
15m Maximum
RS-422/485:
300m Maximum
Baud Rate
RS-232 PORT1
9600, 14400, 19200bps
RS-422/485 PORT2:
9600, 14400, 19200bps
Synchronization
Type
Asynchronous (start-stop synchronization)
Transmission
Protocol
MEMOBUS (Master/Slave)
Transmission
Format
Data Bit Length
7 or 8 Bit
Stop Bit
1 or 2 Bit (port 1only) port 2 is fixed at 1 stop bit
Parity Bit
Even/Odd/None
Pin
Signal
Name
Description
Pin
Signal
Name
Description
1
TxD
Transmit data
8
—
—
2
—
—
9
—
—
3
RxD
Receive data
10
—
—
4
—
—
11
—
—
5
—
—
12
RTS
Request to Send
6
CTS
Clear to Send
13
—
—
7
—
—
14
GND
Ground
PORT1