Example: Loop With Delay; Comparison Codes - Campbell Measurement and Control Module CR10 Operator's Manual
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TABLE 12-4. Example: Loop with Delay
*
1
Table 1 Programs
01:
10
Sec. Execution Interval
01:
P87
Beginning of Loop
01:
6
Delay
02:
0
Loop Count
11:
P86
Do
01:
1
Call Subroutine 1
12:
P89
If X<=>F
01:
25
X Loc DAY
02:
3
>=
03:
6
F
04:
31
Exit Loop if true
13:
P95
End
14:
P87
Beginning of Loop
01:
1
Delay
02:
0
Loop Count
27:
P86
Do
01:
1
Call Subroutine 1
28:
P89
If X<=>F
01:
25
X Loc DAY
02:
3
>=
03:
16
F
04:
31
Exit Loop if true
29:
P95
End
30:
P87
Beginning of Loop
01:
6
Delay
02:
0
Loop Count
36:
P86
Do
01:
1
Call Subroutine 1
37:
P89
If X<=>F
01:
25
X Loc DAY
02:
3
>=
03:
5
F
04:
32
Exit Loop if false
38:
P95
End
39:
P
End Table 1
*
3
Table 3 Subroutines
01:
P85
Beginning of Subroutine
01:
1
Subroutine Number
02:
P18
Time
01:
2
Hours into current year
(maximum 8784)
02:
24
Mod/by
03:
25
Loc [:DAY
03:
P95
End
SECTION 12. PROGRAM CONTROL INSTRUCTIONS
FUNCTION
This Instruction compares two input locations
and, if the result is true, executes the specified
Command. The comparison codes are given in
Table 12-5.
PARAM.
NUMBER
01:
02:
03:
04:
FUNCTION
This Instruction compares an input location to a
fixed value and, if the result is true, performs
the specified Command. The comparison codes
are given in Table 12-5.
PARAM.
NUMBER
01:
02:
03:
04:
FUNCTION
When used within a Loop (Instruction 87),
Instruction 90 will increment the index counter
by a specified amount after the first time
through the loop, thus affecting all indexed
input location parameters in subsequent
instructions. For example, if 4 is specified, the
index counter will count up by 4 (0,4,8,12,...)
]
inside the loop. Instruction 90 does not affect
the loop counter which still counts by 1.
*** 88 IF X COMPARED TO Y ***
DATA
TYPE
DESCRIPTION
4
Input location for X
2
Comparison code
(Table 12-5)
4
Input location for Y
2
Command (Table 3.8-1)
TABLE 12-5. Comparison Codes
Parameter 1
1
2
3
4
*** 89 IF X COMPARED TO F ***
DATA
TYPE
DESCRIPTION
4
Input location for X
2
Comparison code
(Table 12-5)
FP
Fixed value
2
Command (Table 3.8-1)
*** 90 STEP LOOP INDEX ***
Function
IF X = Y
IF X ≠Y
IF X ≥ Y
IF X < Y
12-5
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