Mitsubishi 00JCPU User Manual

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9.3.2 Special relay (SM)
(1) Definition
The special relay (SM) is an internal relay of which details are specified inside the programmable controller, and
the CPU module status data are stored in this special relay.
(2) Special relay classifications
Table9.7 shows special relay classifications.
:Usable special relay exists, :Usable special relay does not exist
*1: Valid only when "Use special relay/special register from SM/SD1000" is selected in the PLC system tab of the PLC parameter dialog box.
Remark
For details of the special relay, refer to the following.
QCPU User's Manual (Hardware Design, Maintenance and Inspection)
Table9.7 Special relay classification list
Classification Special relay
CPU module
Basic model
QCPU
High Performance
model QCPU
Process CPU
Redundant
CPU
Diagnostics information
SM0 to SM99
SM100 to SM199
Serial communication function SM100 to SM129
System information SM200 to SM399
System clocks and counters SM400 to SM499
Scan information, I/O refresh SM500 to SM599
Drive information SM600 to SM699
Instruction related SM700 to SM799
Debugging SM800 to SM899
Latch area SM900 to SM999
A QnA conversion compatibility
SM1000 to SM1255
*1
Process control instruction SM1500 to SM1509
Redundant system (host system
CPU information)
SM1510 to SM1599
Redundant system (other system
CPU information)
SM1600 to SM1699
Redundant system (tracking
information)
SM1700 to SM1779
Redundant power supply module
information
SM1780 to SM1799

Mitsubishi 00JCPU Specifications

General

Brand	Mitsubishi
Model	00JCPU
Category	Controller
Language	English