390
Special Instructions
Section 5-28
Note
If 8 characters are not needed in the message, input “0D” after the
last character.
Determining Monitoring
Time
The procedure below can be used to automatically set the monitoring time, T,
under actual operating conditions when specifying a word operand for T. This
operation cannot be used if a constant is set for T.
1,2,3...
1.
Switch the CQM1H to MONITOR Mode operation.
2.
Connect a Peripheral Device, such as a Programming Console.
3.
Use the Peripheral Device to turn ON control bit AR 2508.
4.
Execute the program with AR 2508 turned ON. If the monitoring time cur-
rently in T is exceeded, 1.5 times the actual monitoring time will be stored
in T. FAL(06) errors will not occur while AR 2508 is ON.
5.
Turn OFF AR 2508 when an acceptable value has been stored in T.
Example
In the following example, the FPD(––) is set to display the bit address and
message (“ABC”) when a monitoring time of 123.4 s is exceeded.
FPD(––) is executed and begins monitoring when LR 0000 goes ON. If LR
0015 does not turn ON within 123.4 s and IR 10000 through IR 10003 are all
ON, IR 10002 will be selected as the cause of the error, an FAL(06) error will
be generated with an FAL number of 10, and the bit address and preset mes-
sage (“10002–1ABC”) will be displayed on the Peripheral Device.
MOV(21)
HR 15
#4142
SR 25315
Address Instruction
Operands
00000
LD
25315
00001
MOV(21)
#
4142
HR
15
00002
LD
25315
00003
MOV(21)
#
430D
HR
16
00004
LD
LR
0000
00005
FPD(
−−
)
#
0010
#
1234
HR
10
00006
AND
25504
00007
INC(38)
DM
0100
00008
LD
10000
00009
OR
10001
00010
LD NOT
10002
00011
OR NOT
10003
00012
AND LD
00013
OUT
LR
0015
FPD(
−−
)
#1234
#8010
HR 10
MOV(21)
HR 16
#430D
SR 25504
(CY Flag)
SR 25315
LR 0000
INC(38)
DM 0100
10000
10002
10001
10003
LR 0015
