Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 380)

A.2 System Status
A-6
A.2 System Status
The system operating status and errors are stored in registers SW00040 to SW00048. You can check the system status
to determine whether the cause of the error is hardware or software related.
Name
Register
Address
Contents
Reserved for
system. SW00030 to
SW00039
–
CPU Status SW00040
SB000400 READY 0: Error, 1: Ready
SB000401 RUN 0: Stopped, 1: Running
SB000402 ALARM 0: Normal, 1: Alarm
SB000403 ERROR 0: Normal, 1: Error
SB000404 Reserved for system. –
SB000405 Reserved for system. –
SB000406 FLASH 1: Flash operation
SB000407 WEN
0: Writing disabled, 1: Writing
enabled
SB000408 to
SB00040D
Reserved for system. –
SB00040E Operation Stop Request 0: RUN selected, 1: STOP selected
SB00040F
Run Switch Status at
Power ON
0: STOP, 1: RUN
CPU Error
Status
SW00041
SB000410 Serious Failure
1: WDGE, undefined instruction
Refer to SW00050 for details.
SB000411 Reserved for system. –
SB000412 Reserved for system. –
SB000413 Exception Error –
SB000414 to SB000417 Reserved for system. –
SB000418 User Operation Error 1: User operation error
SB000419 I/O Error 1: I/O error
SB00041A to
SB00041F
Reserved for system. –
H Scan
Exceeded
Counter
SW00044 – – –
L Scan
Exceeded
Counter
SW00046 – – –
Reserved for
system.
SW00047 Reserved for system. –
Hardware
Configuration
Status
SW00048
SB000480 TEST
DIP switch status
0: ON, 1: OFF
SB000481 MON
SB000482 CNFG
SB000483 INIT
SB000484 SUP
SB000485 STOP
SB000486
SB000487
Battery Alarm –
SB000488 to SB00048F Reserved for system. –
Reserved for
system.
SW00049 SB000490 to SB00049F Reserved for system. –