Annunciator (F) - Mitsubishi Electric Q01UCPU User Manual

4.2.5

Annunciator (F)

The annunciator (F) is an internal relay that can be effectively used in fault detection programs for a user-created
system. When any annunciator turns on, SM62 turns on, and the number of annunciators turned on and the
corresponding numbers are stored in SD62 to SD79. The annunciator number stored in SD62 is also registered to the
error history area.
Special relay/special register
SM62
SD62
SD63
SD64 to SD79
(1) Applications of the annunciator
Using the annunciator in a fault detection program allows check for a system fault and identification of the fault
(annunciator number) by monitoring the special register (SD62 to SD79) when the special relay (SM62) turns on.
In this program, when annunciator (F5) is turned on, the corresponding annunciator number is output to the
Ex.
outside.
[Fault detection program]
(2) Allowable number of
There are no restrictions on the number of normally open or closed contacts used in a program, as
long as the program capacity is not exceeded
Turns on even if only one of the annunciator number areas is turned on.
Stores the number of the annunciator that was turned on first.
Stores the quantity of the annunciator number areas that are on.
Stores annunciator numbers in the order of turning on.
(The same annunciator number is stored in SD62 and SD64.)
X0 X10
SET F5
SM62
BCDP
SD62 K4Y20
Outputs No. of the
annunciator that turned on.
Annunciator ON detection
normally open or closed contacts
Description
SM62 OFF
SD62
0
SD63
0
SD64
0
SD65
SD79
.
CHAPTER 4 DEVICES
ON
5
1
5
0
0
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4