Mitsubishi Electric MELSEC-Q/L - BIN 16-Bit Block Data Comparisons

6 BASIC INSTRUCTIONS
6.1 Comparison Operation Instructions
199
6
BIN 16-bit block data comparisons
BKCMP(P)
Processing details
• Compares BIN 16-bit data the nth point from the device number designated by (S1) with BIN 16-bit data the nth point from
the device number designated by (S2), and stores the result from the device designated by (D) onward.
• The comparison operation is conducted in 16-bit units.
• The constant designated by (S1) can be between -32768 and 32767 (BIN 16-bit data).
(S1): Data to be compared or head number of the devices where the data to be compared is stored (BIN 16 bits)
(S2): Head number of the devices where the comparison data is stored (BIN 16 bits)
(D): Head number of the devices where the comparison operation result will be stored (bits)
n: Number of comparison data blocks (BIN 16 bits)
Setting
data
Internal device R, ZR J\ U\G Zn Constant
K, H
Others
Bit Word Bit Word
(S1)   
(S2)   
(D)   
n   
• If the comparison condition has been met, the device designated by (D) will be turned on.
• If the comparison condition has not been met, the device designated by (D) will be turned OFF.
Basic
Process
High
performance
Redundant Universal LCPU
BKCMP
BKCMP
Command
BKCMPP
n
D
S1 S2
Command
BKCMP
n
D
S1 S2
P
/////
indicates an instruction symbol of .
(0)
(1)
(0)
OFF
ON
OFF
(1)
ON
(1)
ON
n
(BIN)
(BIN)
(BIN)
1234
5678
5000
(BIN)
7777
(BIN)4321
n
(BIN)
(BIN)
(BIN)
5321
3399
5678
(BIN)6543
(BIN)1200
n
Operation Results
D
S1
S2
S
1
S
1
S
1
S
1
S2
S2
S2
S2
D
D
D
D
(n 2)
(n 1)
(n 2)
(n 1)
(n 2)
(n 1)
1
2
1
2
1
2
(1)
(0)
(1)
ON
OFF
ON
(0)OFF
(0)OFF
n
(BIN)
(BIN)
(BIN)
32000
4321
32000
(BIN)1234
(BIN)5678
n
Operation Results
(BIN)
32000
D
D
D
D
D
S2
S2
S2
S2
S2
S
1
1
2
(n 2)
(n 1)
(n 2)
(n 1)
1
2