Mitsubishi MELSEC-F FX3U Series

Mitsubishi MELSEC-F FX3U Series

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G-2

FX

3U

/FX

3UC

Series PLC User's Manual - Analog Control Edition

PID Instruction (FNC 88)

Table of Contents

Safety Precautions3
- Table of Contents7
- Common Items17
Introduction17
- Outline and Features of Analog Control17
  - Analog Input Control18
  - Analog Output Control18
- FX 3U -4AD-ADP (4-Channel Analog Input)18
  - Temperature Sensor Input Control19
Description of Analog Products20
- Various Types of Analog Products20
  - Special Adapter20
  - Special Function Block21
- List of Analog Product Models22
  - Special Adapter22
  - Special Function Block23
System Configuration Drawings of Analog Products25
- FX 3U Series PLC25
  - Connection of Special Adapters25
  - Connection of Special Function Blocks26
- FX 3UC Series PLC27
  - Connection of Special Adapters27
  - Connection of Special Function Blocks28
Comparison of Performance Specifications29
- Analog Input29
- Analog Output35
- Analog Input/Output Mixture39
  - Fx 2N -5A39
  - Fx 0N -3A41
- Temperature Sensor Input42
Manual Introduction (Types, Contents, and Obtainment48
- How to Use Various Manuals48
- Description of Related Manuals49
Generic Names and Abbreviations in this Manual52
- FX 3UC -4AD (4-Channel Analog Input)55
Outline57
- Outline of Functions57
- Setup Procedure before Starting Operation58
- Connectable PLC and Its Version Number59
- Version Number of Compatible Programming Tool59
Specifications60
- Generic Specifications60
- Power Supply Specifications60
- Performance Specifications61
- Input Mode (Characteristics) BFM #062
Wiring64
- Terminal Arrangement65
- Power Supply Line66
- Cable Connection to Input Terminal and Tightening Torque68
  - Analog Input Line69
- Grounding69
Analog Data Reading70
- Procedure for Reading out of Analog Data70
Buffer Memory (BFM72
- Assignment of Unit Numbers and Outline of Buffer Memory72
- Buffer Memory Reading/Writing Method73
  - Buffer Memory Direct Specification73
  - FROM/TO Instruction (Conventional Method73
- List of Buffer Memories (BFM75
- Details of Buffer Memories79
- Number of Averaging Time82
- Error Status84
Changing of Input Characteristics102
Changing Input Characteristics102
- Procedure for Changing Input Characteristics102
Examples of Practical Programs105
- Program that Uses Number of Averaging Time105
- Program that Uses Convenient Functions106
- Program that Uses Data History Function108
- Initialize Program for 4AD (Factory Default110
Troubleshooting111
- PLC Version Number Check111
- Wiring Check111
- Program Check111
- Error Status Check112
- 4AD Initialization and Test Program113
- Fx 3U115
Outline117
- Outline of Functions117
- Setup Procedure before Starting Operation118
- Connectable PLC and Its Version Number119
- Version Number of Compatible Programming Tool119
Specifications120
- Generic Specifications120
- Power Supply Specifications121
- Performance Specifications121
- D/A Conversion Time121
Wiring123
- Terminal Layout124
- Applicable Cable and Terminal Tightening Torque125
- Power Supply Line126
  - To Connect to the FX Series PLC126
  - To Connect to the FX 3UC Series PLC126
- Analog Output Line152
- Grounding152
Programming153
- Writing of D/A Conversion Data153
- List of Special Devices154
- Switching of Output Mode154
- Output Holding Function Cancellation Setting155
- Output Setting Data155
- Error Status156
- Model Code157
- Example of Basic Program157
Changing of Output Characteristics158
- Example: Changing of Voltage Output Characteristics158
Troubleshooting159
- PLC Version Number Check159
- Wiring Check159
- Special Device Check159
- Program Check160
- Error Status Check160
Outline163
- Outline of Functions163
- Setup Procedure before Starting Operation164
- Connectable PLC and Its Version Number165
- Version Number of Compatible Programming Tool165
Specifications166
- Generic Specifications166
- Power Supply Specifications167
- Performance Specifications167
- A/D Conversion Time168
- Temperature Measurement168
Wiring169
- Terminal Layout170
- Applicable Cable and Terminal Tightening Torque171
- 3.3 Power Supply Line172
  - To Connect to FX Series PLC172
  - To Connect to the FX 3UC Series PLC172
- Selection of Platinum Resistance Thermometer Sensor173
- Wiring of Platinum Resistance Thermometer Sensor173
- Grounding173
Programming174
- Loading of A/D Conversion Data174
- List of Special Devices175
- Selection of Temperature Unit175
- Temperature Measurement176
- Number of Averaging Time177
- Error Status178
- Model Code180
- Example of Basic Program180
Troubleshooting181
- PLC Version Number Check181
- Wiring Check181
- Special Device Check181
- Program Check182
- Error Status Check182
- Fx 3U185
- FX -4AD-TC-ADP (4-Channel Thermocouple Data Input)186
Outline187
- Outline of Functions187
- Setup Procedure before Starting Operation188
- Connectable PLC and Its Version Number189
- Version Number of Compatible Programming Tool189
Specifications190
- Generic Specifications190
- Power Supply Specifications190
- Performance Specifications191
- Temperature Measurement192
Wiring193
- Terminal Layout194
- Applicable Cable and Terminal Tightening Torque195
- Power Supply Line196
  - To Connect to FX Series PLC196
  - To Connect to the FX 3UC Series PLC196
- Selection of Thermocouple197
  - Thermocouple Type197
  - Compensating Lead Wire197
- Wiring of Thermocouple197
  - Wiring of Thermocouple Type K197
  - Wiring of Thermocouple Type J198
- Caution Regarding Wiring198
Programming199
- Loading of A/D Conversion Data199
- List of Special Devices200
- Selection of Temperature Unit200
- Selection of Type K or J201
- Temperature Measurement201
- Number of Averaging Time202
- Error Status203
- Model Code205
- Example of Basic Program205
Troubleshooting206
- PLC Version Number Check206
- Wiring Check206
- Special Device Check206
- Program Check207
- Error Status Check207
1 Outline211
- Outline of Function211
- Basic Operation Expressions in PID Instruction (Reference212
How to Use PID Instruction213
- Explanation of Function and Operation213
- Relationship between Parameter Setting and Auto Tuning214
Parameter215
- Parameter List: (S3) to (S3) + 28215
- Details of Parameters217
Auto Tuning226
- Limit Cycle Method226
- Step Response Method229
- Cautions on Auto Tuning Execution230
Example of Practical Programs (for Step Response Method231
- Example: System and Operation231
- Program Example of Auto Tuning (Step Response Method) and PID Control232
- Program Example of Auto Tuning (Step Response Method235
Troubleshooting236
- Error Codes236
Warranty239
Revised History240

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