Yaskawa MP900 Series Machine Controller for Standard Operation - Manual (Page 128)

3.5 MP920 Module Definitions
3-33
3
Generic Serial ports
PORT2
PORT1
RS-232 DSUB-9
RS-232 DSUB-9
Syste
m
bu
s con
n
ec
tor
Syst
em bu
s int
e
rface
Self-diagnostic
function
Setting switches
Program execution
control
Displays and indica-
tors (LEDs)
Main memory
(battery backup)
Status output
(contact outputs)
Program memory
(flash memory)
Engineering control
Scan sync control
between multi-CPUs
Option I/O control Option Module man-
agement and control
Transmission
processing 2
Transmission
processing 1