92
reset by its Completion Flag). TIM 01 is also reset by the Completion Flag for
CNT 02 so that the extended timer would not start again until CNT 02 was
reset by 0001, which serves as the reset for the entire extended timer.
Because in this example the SV for TIM 01 is 5.0 seconds and the SV for
CNT 02 is 100, the Completion Flag for CNT 02 turns ON when 5 seconds x
100 times, i.e., 500 seconds (or 8 minutes and 20 seconds) have expired.
This would result in bit 0100 being turned ON.
0000 TIM 01 CNT 02
TIM 01
0001
CNT 02
0100
CP
R
CNT 02
#0100
Address Instruction Operands
000 LD 0000
001 AND NOT TIM 01
002 AND NOT CNT 02
003 TIM 01
# 0050
004 LD TIM 01
005 LD 0001
006 CNT 02
# 0100
007 LD CNT 02
008 OUT 0100
TIM 01
#0050
In the following example, CNT 01 counts the number of times the 1-second
clock pulse bit (0308) goes from OFF to ON. Here again, 0000 is used to
control the times when CNT is operating.
Because in this example the SV for CNT 01 is 700, the Completion Flag for
CNT 02 turns ON when 1 second x 700 times, or 11 minutes and 40 seconds
have expired. This would result in 0102 being turned ON.
CP
R
CNT 01
#0700
0000 0308
0001
CNT 01
0102
Address Instruction Operands
000 LD 0000
001 AND 0308
002 LD NOT 0001
003 CNT 01
# 0700
004 LD CNT 01
005 OUT 0102
3-7-20 REVERSIBLE DRUM COUNTER -RDM(23)
N: TC number
# (00 to 15)
Ladder Symbol
Definer Values
St: Starting table word
DR
Operand Data Areas
II
DI
RI
RDM(23)
N
St
R
R : Results word
Output bits, work bits, DR, LR
St must be between 0000 and 0003. All unused bits in R can be used as
work bits.
Limitations
Instruction Set Section 3-7
To Next Page
Loading...
Need help?
General
