Mitsubishi Q02CPU

6
FUNCTIONS
6.17 Self-diagnostics Function
6
- 104
1
Overview
2
Performance Specification
3
Sequence Program Configuration and Execution Conditions
4
I/O Nunber Assignment
5
Memories and Files Handled by CPU Module
6
Functions
7
Communication with Intelligent Function Module
8
Parameters
: Self-diagnostics is performed : Self-diagnostics is not performed
* 1 : Can be changed to "Continue" in the parameter setting of GX Developer.
* 2 : Can be changed to "not checked" in the parameter setting of GX Developer. Not checked when
SM251 is ON.
* 3 : Can be changed to "not checked" in the parameter setting of GX Developer.
(Continued on next page)
Table6.29 Self-dianostics list (Continued)
Diagnosics Error message Diagnostics timing
CPU module
status
LED status CPU module
RUN ERR. 1) 2) 3) 4)
Hardware
failure
Intelligent function
module error *
1
SP.UNIT DOWN
• When the CPU
module is powered
on/reset
• When FROM/TO
instruction is executed
• When intelligent
function module
dedicated instruction
is executed
• When END instruction
is executed
STOP/
Continue
OFF/ON Flicker/ON
Control bus error
CONTROL-BUS
ERR.
• When the CPU
module is powered on
• When END instruction
is executed
• When FROM/TO
instruction is executed
• When intelligent
function module
dedicated instruction
is executed
• Always
STOP OFF Flicker
Momentary stop
occurred
AC/DC DOWN • Always Continue ON
OFF
Redundant base unit
power supply voltage
drop
SINGLE PS. DOWN • Always Continue ON ON
Redundant power
supply module fault
SINGLE PS.
ERROR
• Always Continue ON ON
Battery low BATTERY ERROR
• Always
• (Default ... checked)
*3
Continue ON
BAT.ALM
LED ON
Handling
error
I/O module verification
*1
UNIT VERIFY ERR.
• When the END
instruction is executed
• (Default... checked)
*2
STOP
/
Continue
OFF/ON Flicker/ON
Base assignment error BASE LAY ERROR
• When the CPU
module is powered
on/reset
STOP OFF Flicker
Intelligent function
module allocation error
SP.UNIT LAY ERR.
• When the CPU
module is powered
on/reset
• When switched from
STOP to RUN
STOP OFF Flicker
Intelligent program
execution error *1
SP.UNIT ERROR
• When the FROM/TO
instruction is executed
STOP
/
Continue
OFF/ON Flicker/ON
Intelligent function
module version error
SP.UNIT VER.ERR
• When the CPU
module is powered
on/reset
STOP OFF Flicker
No parameter MISSING PARA.
• When the CPU
module is powered
on/reset
STOP OFF Flicker
Boot error BOOT ERROR
• When the CPU
module is powered
on/reset
STOP OFF Flicker