Special Register (Sd) - Mitsubishi Q00JCPU User Manual

10
DEVICE EXPLANATION

10.3.3 Special register (SD)

(1) Definition
(2) Special register classifications
Classification
SD0 to 99
Diagnostics information
SD0 to 199
Serial communication function SD100 to 129
Fuse blown module
SD130 to 149
Check of I/O modules
SD150 to 199
System information SD200 to 399
System clock/system counter SD400 to 499
Scan information SD500 to 599
Memory card SD600 to 699
Instruction related SD700 to 799
debugging SD800 to 899
Latch area SD900 to 929
Redundant function (power
SD952
failure backup information)
A Q/QnA conversion
SD1000 to 1299
compatibility
Fuse blown module
SD1300 to 1399
Check of I/O modules
SD1400 to 1499
Process control instruction SD1500 to 1509
Redundant system (host
SD1510 to 1599
system CPU information)
Redundant system (other
SD1600 to 1699
system CPU information)
Redundant system (tracking
SD1700 to 1779
information)
Redundant power supply
SD1780 to 1799
module information
Remark
10
- 53 10.3 Internal System Devices
10.3.3 Special register (SD)
A special register is used to store CPU module status data (diagnosis and system
information).
Special registers are classified according to their applications, as shown in
Table10.11.
Table10.11 Special register classification list
Special register
Basic model
QCPU
*1
*2
*1
*1
*1
*2
*2
* 1 : In the Basic model QCPU, SD0 to 99 will be the area for error diagnostics.
The serial communication function, fuse blown module and check of I/O modules data are stored into SD100 to 199.
* 2 : In the High Performance model QCPU, Process CPU or Redundant CPU, SD0 to 199 will the area for error diagnostics.
The fuse blown module and check of I/O modules data are stored into SD1300 to 1499.
* 3 : Usable only when "Use the special relays/special registers SM1000/SD1000 and later" is selected in the PLC system
setting of the PLC parameter dialog box.
For details on special relays refer to Appendix 2.
CPU module
High
Performance Process CPU
model QCPU
Universal model
Redundant CPU
QCPU
: Usable special relay is included
: Usable special relay is not included