Mitsubishi Q02CPU

APPENDICES
Appendix 1 Special Relay List
App
- 14
9
Device Explanation
10
CPU Module Processing Time
11
Procedure for Writing Program to CPU Module
Appendices
Index
(10)A to Q/QnA conversion correspondences
Special relays SM1000 to SM1255 are the relays which correspond to ACPU special
relays M9000 to M9255 after A to Q/QnA conversion.
(However, the Basic model QCPU and Redundant CPU do not support A to Q/QnA
conversion.)
These special relays are all set by the system, and cannot be set by the user
program.
To turn them ON/OFF by the user program, change the special relays in the program
into those of QCPU/QnACPU.
However, some of SM1084 and SM1200 to SM1255 (corresponding to M9084 and
M9200 to M9255 before conversion) can be turned ON/OFF by the user program, if
they could be turned ON/OFF by the user program before conversion.For details on
the ACPU special relays, see the user's manuals for the individual CPUs, and
MELSECNET or MELSECNET/B Data Link System Reference Manuals.
POINT
The processing time may be longer when converted special relays are used with
the High Performance model QCPU and Process CPU. Uncheck "A-series CPU
compatibility setting" within the PC system setting in GX Developer parameters
when converted special relays are not used.
Remark
The following are additional explanations about the Special Relay for Modification
column.
1. When a special relay for modification is provided, the device number should
be changed to the provided QCPU/QnACPU special relay.
2. When is provided, the converted special relay can be used for the device
number.
3. When is provided, the device number does not work with QCPU/QnACPU.
TableApp.11 Special relay
ACPU
Special
Relay
Special
Relay after
Conversion
Special
Relay for
Modification
Name Meaning Details Corresponding CPU
M9000 SM1000 ---- Fuse blown
OFF : Normal
ON : Module with blown
fuse
• Turned on when there is one or more output modules of
which fuse has been blown.
• Remains ON if the condition is restored to normal
thereafter.
• Output modules of remote I/O stations are also checked
fore fuse condition.
QnA
Qn(H)
QnPH
M9002 SM1002 ----
I/O module
verification error
OFF : Normal
ON : Error
• Turned on if the status of I/O module is different form
entered status when power is turned on.
• Remains ON if the condition is restored to normal
thereafter.
• I/O module verification is done also to remote I/O station
modules.
• Reset is enabled only when special registers SD1116 to
SD1123 are reset.
M9004 SM1004 ---- NIMI link error
OFF : Normal
ON : Error
• Goes ON if MINI (S3) link error is detected at even one of
the installed AJ71PT32 (S3) modules.
• Remains ON if the condition is restored to normal
thereafter.
QnA