Yaskawa MP940 Reference Manual - Manual (Page 95)

Serial Transmission Function MotionSuite™ MP940 Machine Controller Reference Manual
4-4
Serial Transmission Function
Outline of Serial Transmission Function
The MP940 is equipped with a serial transmission interface containing (1)
RS-232C and (1) RS-422/485.1. This arrangement is compatible with
several transmission protocols, starting with Yaskawa's proprietary Memobus
protocol, as well as with various interfaces. The PORT1RS-232 can be used
as an engineering port. MP940 engineering is possible by connection to
MotionWorks™.
MP940works as either a master or slave in a set program according to the
serial transmission setting.
Serial Transmission executes data send/receive by using the MSG-SND and
MSG-RCV functions within the DWG/ function program.
System Configuration
Standard System Configuration
The following is an example of connecting the MotionWorks™
BAT
RDY
RUN
ALM
BAT
PRT1
6
5
4
3
2
1 NO →
PRT2
RUN
INIT
TEST
FLASH
PP
COPY
PORT1
PORT2
POWER
+24V
GND
FG
LED
I/O
TX R
X
1
2
M
E
C
H
A
T
R
O
L
I N
K
MP940
Comm.
CPU
PORT2
PORT1
Transmission
Processor-1
RS-422/
485
RS-232C
Transmission
Processor-2
Port 1 RS-232C
Port 2 RS-422/485