9 -
18
9.
MAINTENANCE FUNCTION
(2) The following shows how to turn OFF an LED that is currently ON.(Excluding the
reset operation).
: Valid : Not valid
*1
Explanation of special relays and special registers
A bit setting of "1" indicates that the bit is to be turned OFF, "0" indicates that it is not to be
turned OFF.
The following shows the setting possibilities (all hexadecimal notation):
To turn both LEDs OFF: SD202 = 110
H
To turn only the BOOT LED OFF: SD202 = 100
H
To turn only the USER LED OFF: SD202 = 10
H
(3) Method for stopping ERROR LED, USER LED, and BAT.ALARM LED indications
ERROR LED, USER LED and BAT. ALARM LED have the same priority order as
described for display of Priority setting in Section 9.9.2.
If an error item number is deleted from this order of priority, the LED does not light
even if the error corresponding to that error item number occurs.
(For details on the setting method, refer to the POINT in Section 9.9.2.)
Method for Turning OFF the LED
LED Name
ERROR
USER
BAT.
ALARM
BOOT
Resolve the cause of the error, then execute the LEDR
instruction.
Eliminate the cause of the error, then reset the error using special
relay SM50 and special register SD50.(Restricted to error which
do not stop operation.)
*1
Turn OFF the LED by using special relay SM202 and special
register SD202.
*1
SM50.....
When turning OFF
ON, resets the error corresponding to the error code stored
in SD50.
SD50.....
Stores the error code of the error to be reset.
(For details on error codes, refer to Section 22.3.3.)
SM202..... When turning OFF
ON, turns OFF the LEDs corresponding to each of the bits
of SD202.
SD202.....
Designates the LED to be turned OFF.(The LEDs that can be turned OFF are the
USER LED and the BOOT LED only.)
Summary of Contents for Q2ACPU
Page 1: ......
Page 2: ......
Page 221: ...12 12 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Page 222: ...12 13 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Page 237: ...12 28 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU MEMO ...
Page 271: ...16 13 16 POWER SUPPLY MODULE 4 Names and description of parts of the A66P ...
Page 343: ...21 21 13 MAINTENANCE AND INSPECTION 21 4 2 Replacement of the fuse for an output module ...
Page 357: ...22 12 22 TROUBLESHOOTING ...
Page 359: ...22 14 22 TROUBLESHOOTING MEMO ...
Page 429: ...App 32 APPENDICES Trigonometric function Classification Symbol Description ...
Page 537: ...App 140 APPENDICES REMARK 1 Message 1 An error code is displayed in 2 Alert 1 3 Alert 2 ...
Page 539: ...App 142 APPENDICES 2 Q2ACPU Q2ACPU S1 modules Unit mm inch ...
Page 541: ...App 144 APPENDICES 2 A66P power supply module Unit mm inch ...
Page 543: ...App 146 APPENDICES 3 A35B base unit 4 A38B A38HB A38HBEU base unit Unit mm inch Unit mm inch ...
Page 567: ...MEMO ...
Page 569: ......
Page 570: ......