172
7 BASIC INSTRUCTIONS
7.1 Comparison Operation Instructions
Processing details
• These instructions perform a comparison operation between the 32-bit binary data in the device specified by (s1) and the
32-bit binary data in the device specified by (s2) and according to the result (small, equal, large), (d), (d) + 1, or (d) + 2 is
turned ON.
• (s1) and (s2) are handled as binary values within the range of above data setting.
• Large and small comparison is executed algebraically.
Precautions
Three devices are occupied from the device specified in (d). Make sure that these devices are not used in other controls.
Operation error
• With sign…
-125400 (FFFE1628H) < 224566 (00036D36H)
• Without sign…
16776690 (00FFFDF2H) < 4294967176 (FFFFFF88H)
(1): Even if the command input turns OFF and the DCMP instruction is not executed, (d) to (d)+2 latches the status just before the command input turns from
ON to OFF.
Error code
(SD0/SD8067)
Description
2820H
The range of 3 points of data starting from the device specified by (d) exceeds said device.
(d)
DCMP
(d)+1
(d)+2
48
49
50
51
(d)+1
(d)+2
(1)
(s1)
(s2)
(d)
(s2)
(d)
(s1)
X0
X0
Latched
Latched
Latched
Turns ON in the case of (s1)>(s2).
Turns ON in the case of (s1)=(s2).
Turns ON in the case of (s1)<(s2).
Summary of Contents for MELSEC iQ-F FX5
Page 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 17: ...15 CONTENTS ...
Page 24: ...22 MEMO ...
Page 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Page 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
Page 1107: ...I 1105 MEMO ...
Page 1111: ......