124
2 CPU MODULE INSTRUCTIONS
2.7 Process Control Instructions
■
Derivative control
■
Dead time
■
High selector
■
Low selector
■
Middle value selector
■
Average value calculation
■
Upper/lower limiter
■
Variation rate limiter 1
■
Variation rate limiter 2
■
Two-position (on/off) control
■
Three-position (on/off) control
■
Dead band
■
Program setter
Instruction symbol
Processing details
Reference
S.D
Performs differential operation to the input data, and outputs the operation result.
Instruction symbol
Processing details
Reference
S.DED
Delays the output of the input data by the specified dead time.
Instruction symbol
Processing details
Reference
S.HS
Outputs the maximum value of the input data.
Instruction symbol
Processing details
Reference
S.LS
Outputs the minimum value of the input data.
Instruction symbol
Processing details
Reference
S.MID
Outputs the intermediate value (the value between the maximum and minimum values) of the input
data.
Instruction symbol
Processing details
Reference
S.AVE
Calculates the mean (average) value of the input data, and outputs the operation result.
Instruction symbol
Processing details
Reference
S.LIMT
Applies a limiter with hysteresis to the output value.
Instruction symbol
Processing details
Reference
S.VLMT1
Limits the variation speed when the variation rate of the input (E1) exceeds the limit.
Instruction symbol
Processing details
Reference
S.VLMT2
Holds the last value when the variation rate of the input (E1) exceeds the limit.
Instruction symbol
Processing details
Reference
S.ONF2
Performs two-position (on/off) control.
The instruction performs the following processing steps: SV setting, tracking, MV correction, MV
output, and two-position (on/off) control.
Instruction symbol
Processing details
Reference
S.ONF3
Performs three-position (on/off) control.
The instruction performs the following processing steps: SV setting, tracking, MV correction, MV
output, and three-position (on/off) control.
Instruction symbol
Processing details
Reference
S.DBND
Provides a dead band and performs output processing.
Instruction symbol
Processing details
Reference
S.PGS
Provides control output according to the SV and MV patterns.
Summary of Contents for MELSEC iQ-R Series
Page 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Page 34: ...32 MEMO ...
Page 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Page 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Page 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Page 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Page 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Page 2109: ......