Data Control Instructions; Upper And Lower Limit Control Of 16-Bit Binary Data - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

7.12

Data Control Instructions

Upper and lower limit control of 16-bit binary data

LIMIT(P)(_U)
RnPCPU RnPCPU
RnCPU RnENCPU
(Process) (Redundant)
These instructions control the output value depending on whether the specified 16-bit binary bit value is within the upper and
lower limits.
Ladder
(s1) (s2) (s3)
*1
FBD/LD
EN ENO
s1 d
s2
s3
*1 The LIMIT and LIMIT_U instructions do not support the ST and FBD/LD. Use the standard function, LIMIT.
Page 1935 LIMIT(_E)
■Execution condition
Instruction
LIMIT
LIMIT_U
LIMITP
LIMITP_U
Setting data
■Descriptions, ranges, and data types
Operand Description
(s1) LIMIT(P) Lower limit value (minimum output threshold
value)
LIMIT(P)_U
(s2) LIMIT(P) Upper limit value (maximum output threshold
value)
LIMIT(P)_U
(s3) LIMIT(P) Input value to be controlled with the upper and
lower limits
LIMIT(P)_U
(d) LIMIT(P) Device for storing the output value controlled by
upper/lower limit control
LIMIT(P)_U
EN Execution condition
ENO Execution result
RnSFCPU RnSFCPU
(Standard) (Safety)
(d)
Execution condition
*1
ST
ENO:=LIMITP(EN,s1,s2,s3,d);
Range Data type
-32768 to 32767 16-bit signed binary
0 to 65535 16-bit unsigned binary
-32768 to 32767 16-bit signed binary
0 to 65535 16-bit unsigned binary
-32768 to 32767 16-bit signed binary
0 to 65535 16-bit unsigned binary
 16-bit signed binary
16-bit unsigned binary
 Bit

Bit
7 APPLICATION INSTRUCTIONS
ENO:=LIMITP_U(EN,s1,s2,s3,d);
Data type (label)
ANY16_S
ANY16_U
ANY16_S
ANY16_U
ANY16_S
ANY16_U
ANY16_S
ANY16_U
BOOL
BOOL
7.12 Data Control Instructions
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