Omron SYSMAC C20K Operation Manual page 110

Timer and Counter Instructions
1813 (normally ON)
1905 (GR)
1813 (normally ON)
1905 (GR)
1813 (normally ON)
1907 (LE)
1000 1001
Cascade Connection
(Counting Past 9,999)
Note that in the program just mentioned, the present value in the counter
buffer is transferred to counter number 47 at points A and B. In this case, if
S31 (=1,000) < S < S32 (=2,000) and S33 (=2,000) < S < S34 (=3,000), and
if the present count value of the first high-speed counter (at point A) is 1,999
and that of the second counter (at point B) is 2,003, HR 015 and HR100 may
be simultaneously turned ON. If it is necessary to avoid this, set the values of
S32 and S33 so that there is a value difference equivalent to the time lag
from points A to B. For example, set the value of S32 to 2,000 and that of
S33 to 2,010.
More than 16 output bits may be obtained using CMP.
In the above program, output 0600 is turned ON when the following condition
is satisfied, where S is the present count value of the high-speed counter:
6,850 < S 9,999.
In the above program, output 0601 is turned ON when the following condition
is satisfied, where S is the present count value of the high-speed counter:
300 < S < 2,300.
The number of digits of the upper and lower limits of the high-speed counter
can be increased from four to eight by using the high-speed counter together
with CNTR and CMP.
Address Instruction
CMP(20)
0000 LD
CNT 47
0001 CMP(20)
#6850
0002 AND
0600
0003 OUT
Address Instruction
CMP(20)
0000 LD
CNT 47
0001 CMP(20)
#0300
0002 AND
1000
0003 OUT
0004 LD
0005 CMP(20)
CMP(20)
0006 AND
CNT 47
0007 OUT
#2300
0008 LD
0009 AND
0010 OUT
1001
0601
Section 5-11
Operands
1813
CNT 47
# 6850
1905
0600
Operands
1813
CNT 47
# 0300
1905
1000
1813
CNT 47
# 2300
1907
1001
1000
1001
0601
99