Mitsubishi QCPU (Q Mode) User Manual

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MELSEC-Q
10 DEVICES
10.3.2 Special relays (SM)
(1) Definition
A special relay is used to store High Performance model QCPU status data.
(2) Special relay classifications
Special relays are classified according to their applications, as shown below.
(a) For fault diagnosis : SM0 to SM199
(b) System information : SM200 to SM399
(c) System clock/system counter : SM400 to SM499
(d) Scan information : SM500 to SM599
(e) Memory card information : SM600 to SM699
(f) Instruction related : SM700 to SM799
(g) For debugging : SM800 to SM899
(h) Latch area : SM900 to SM999
(i) For A-PLC : SM1000 to SM1299
REMARK
1) For details on special relays which can be used by the High Performance model
QCPU, refer to Appendix 1.
2)
: This takes effect only after you have turned on the "Use special relay/special
register form SM1000/SD1000" check box in the "Compatibility with A-PLC"
section at the "PLC system" tab screen in the “(PLC) Parameter" dialog box.

Mitsubishi QCPU (Q Mode) Specifications

General

Brand	Mitsubishi
Model	QCPU (Q Mode)
Category	Controller
Language	English