Icmp>= (Interval Compare Greater Than Or Equal To) - IDEC FC4A-C10R2 User Manual

10: D C
ATA OMPARISON
ICMP>= (Interval Compare Greater Than or Equal To)
ICMP>=(*)
Applicable CPU Modules
FC4A-C10R2/C FC4A-C16R2/C
—
Valid Operands
Operand
S1 (Source 1)
S2 (Source 2)
S3 (Source 3)
D1 (Destination 1)
For the valid operand number range, see pages 6-1 and 6-2.
▲
Internal relays M0 through M1277 can be designated as D1. Special internal relays cannot be designated as D1.
When T (timer) or C (counter) is used as S1, S2, or S3, the timer/counter current value is read out.
When the data of S1 is smaller than that of S3 (S1 < S3), a user program execution error will result, turning on special
internal relay M8004 and ERR LED on the CPU module.
Valid Data Types
W (word) I (integer)
X X
Special Internal Relays M8150, M8151, and M8152 in ICMP>=
Three special internal relays are provided to indicate the comparison result of the ICMP>= instruction. Depending on the
result, one of the three special internal relays turns on. S1 must always be greater than or equal to S3 (S1 ≥ S3).
When S2 > S1, M8150 turns on.
When S2 < S3, M8151 turns on.
When S1 > S2 > S3, M8152 turns on.
S3
M8151
Small
S2 (1) (2)
When more than one ICMP>= or CMP= instruction is used, M8150, M8151, or M8152 indicates the result of the instruc-
tion that was executed last.
Example: ICMP>=
ICMP>=(W)
SOTU
I0
When input I0 is turned on, data of data registers D10, D11, and D12 designated by source operands S1, S2, and S3 are
compared. When the condition is met, internal relay M10 designated by destination operand D1 is turned on. When the con-
dition is not met, M10 is turned off.
10-4
I
NSTRUCTIONS
S1 S2 S3
***** ***** *****
FC4A-C24R2/C
— —
Function
Data to compare
Data to compare
Data to compare
Comparison output
When a bit operand such as I (input), Q (output), M (internal relay), or R (shift register) is
designated as the source, 16 points are used.
When a word operand such as T (timer), C (counter), or D (data register) is designated as the
source, 1 point is used.
The destination uses only one output or internal relay regardless of the selected data type.
S1
M8152 M8150
(3) (4) (5)
S1 S2
D10 D11
« FC4A M
S1 ≥ S2 ≥ S3 → D1 on
D1
When input is on, the 16-bit data designated by S1, S2, and
*****
S3 are compared. When the condition is met, destination
operand D1 is turned on. When the condition is not met, D1 is
turned off.
FC4A-D20K3/S3
—
I
X
X
X
—
S2 Value
(1) S2 < S3
(2) S2 = S3
(3) S3 < S2 < S1
Large
(4) S2 = S1
(5) S2 > S1
D10 ≥ D11 ≥ D12 → M10 goes on
S3 D1
D12 M10
S U ' M
ICRO MART SER S ANUAL
FC4A-D20RK1/RS1 & FC4A-D40K3/S3
X
Q M R T C D
X X X X X X
X X X X X X
X X X X X X
▲ — — — —
X
M8150 M8151
OFF ON
OFF OFF
OFF OFF
OFF OFF
ON OFF
»
Constant Repeat
X —
X —
X —
— —
D1
M8152
Status
OFF OFF
OFF ON
ON ON
OFF ON
OFF OFF