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5 MELSEC FUNCTIONS
5.4.5 Block data comparison (<) BKCMP_LT_M
n points of BIN 16-bit data (word unit), starting at the specified devices, are compared in terms of "<".
Function definition
BOOL BKCMP_LT_M (BOOL EN, ANY16 S1, ANY16 S2, ANY16 n, BOOL D);
Argument Name
IN/OUT
Description
EN IN
Execution condition (Function is executed only when the
result is TRUE)
S1 IN
Compared data (BIN 16-bit data)
S2 IN
Comparison data (BIN 16-bit data)
n IN
Number of data to be compared (BIN 16-bit data)
When comparison
condition is satisfied
ON
D OUT
Comparison
result (bit)
Comparison
result
When comparison
condition is not satisfied OFF
Return Value
Description
BOOL
Execution condition
Example of use
(* When execution condition X0 turns ON, the data of the number of points stored *)
(* in D0, starting at D100, is compared with the data of the number of points stored *)
(* in D0, starting at D200, in terms of "<", and the result is stored into M0 and later. *)
BKCMP_LT_M (X0, D100, D200, D0, M0);
Corresponding MELSEC command
BKCMP< (BIN block data comparison (<))
5.4.6 Block data comparison (>=) BKCMP_GE_M
n points of BIN 16-bit data (word unit), starting at the specified devices, are compared in terms of ">=".
Function definition BOOL BKCMP_GE_M (BOOL EN, ANY16 S1, ANY16 S2, ANY16 n, BOOL D);
Argument Name
IN/OUT
Description
EN IN
Execution condition (Function is executed only when the
result is TRUE)
S1 IN
Compared data (BIN 16-bit data)
S2 IN
Comparison data (BIN 16-bit data)
n IN
Number of data to be compared (BIN 16-bit data)
When comparison
condition is satisfied
ON
D OUT
Comparison
result (bit)
Comparison
result
When comparison
condition is not satisfied OFF
Return Value
Description
BOOL
Execution condition
Example of use
(* When execution condition X0 turns ON, the data of the number of points stored *)
(* in D0, starting at D100, is compared with the data of the number of points stored *)
(* in D0, starting at D200, in terms of ">=", and the result is stored into M0 and later. *)
BKCMP_GE_M (X0, D100, D200, D0, M0);
Corresponding MELSEC command
BKCMP>= (BIN block data comparison (>=))
For the usable data type, refer to "3.2.2
About ANY type".
Содержание MELSEC L series
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