National-instruments FP-3000 Bedienungsanleitung Seite 68
- Seite / 155
- Inhaltsverzeichnis
- FEHLERBEHEBUNG
- LESEZEICHEN
Bewertet. / 5. Basierend auf Kundenbewertungen
Chapter 4 Block Reference
FieldPoint FP-3000 User Manual 4-16 www.ni.com
PID Control
In a Fieldbus network, a PID control loop is composed of three function
blocks: an Analog Input (AI) block, a Proportional Integral Derivative
(PID) block, and an Analog Output (AO) block. The PID block’s
IN
parameter is connected to the AI block’s
OUT
parameter. The PID uses this
linkage to determine the current value of the process variable it is
controlling. The PID uses linkage from the PID’s
OUT
parameter to the AO
block
CAS_IN
parameter to adjust the AO block’s setpoint. To allow the
cascade to be correctly initialized, a third back calculation linkage is
created that allows the AO block to send its current setpoint back up to the
PID block. These linkages are established using configuration software,
such as the NI-FBUS Configurator. For more information, refer to
Example 2: Temperature Control with the FP-3000 in Chapter 3, Example
Applications.
Discrete Input FP-DI-300 Fp Di 300
FP-DI-301 Fp Di 301
FP-DI-330 Fp Di 330
Discrete Output FP-DO-400 Fp Do 400
Fp Cdo 400 (interlock logic)
FP-DO-401 Fp Do 401
Fp Cdo 401 (cold junction)
FP-DO-403 Fp Do 403
Fp Cdo 403
FP-DO-410 Fp Do 410
Fp Cdo 410
FP-RLY 420 Fp Rly 420
Fp Crly 420 (cold junction)
FP-RLY-422 Fp Rly 422
Fp Crly 422
Table 4-6. FieldPoint Modules (Continued)
Channel Type
Supported
Module
Block Type
- FP-3000 Network Module 1
- User Manual 1
- Important Information 3
- Conventions 4
- Chapter 3 6
- Chapter 4 7
- Appendix A 8
- Appendix B 8
- Contents 10
- Appendix C 11
- Appendix G 13
- Technical Support Resources 13
- Glossary 13
- Overview 14
- Function Blocks 15
- PID Control 16
- Interoperability 17
- Scheduling Functionality 17
- HotPnP (Hot Plug and Play) 17
- OUNDATION 18
- Import Device Descriptions 19
- MountingtheFP-3000onaDINRail 21
- Figure 2-3 23
- Connecting Terminal Bases 23
- Removing I/O Modules 26
- Connect Power to the FP-3000 28
- Supplying Power for Outputs 29
- Isolation 29
- Power Connections 30
- LED Indicators 31
- FF-H1 PORT 32
- STATUS NETWORK 32
- Table 2-1 33
- Autoconfigure the FP-3000 34
- Updating the FP-3000 Firmware 35
- Example Applications 36
- Fieldbus Using FP-3000 37
- Create an FP-AI-110 Block 38
- Assign a Tag to the New Block 38
- Select the Module and Channel 38
- Set the Input Range 39
- Scale the Reading 39
- Set Up Scheduling 40
- Bring the Block Online 41
- Getting Started 42
- Taking Temperature Readings 43
- Create an FP-TC-120 Block 43
- Controlling a Heating Element 46
- Create an FP-AO-200 Block 46
- Set the Output Range 46
- Scale the Output 47
- Create a PID Block 48
- Scale the PID 49
- Tune the PID 51
- Set Alarms 52
- Block Reference 53
- Transducer Blocks 54
- Types of Function Blocks 55
- DO (Discrete Output) 56
- CDO (Complex Discrete Output) 56
- Data Types Supported 57
- Status Calculation Rules 58
- Syntax Rules 58
- Program Constructs 59
- Constants 60
- Operators 61
- Flow Control 62
- Delimiters 62
- Functions 62
- Table 4-5. Function Operators 63
- Uint32 is_bad(vs_float F) OR 63
- Uint32 is_bad(vs_discrete D) 63
- Chapter 4 Block Reference 64
- Table 4-6 67
- FieldPoint Modules 67
- PID Loop Execution Time 69
- Alarming 70
- Alarm Parameters 71
- UNACKNOWLEDGED 71
- ALARM_STATE/UPDATE_STATE 71
- TIME_STAMP 72
- Status Handling 73
- Substatus 74
- TARGET Mode 74
- ACTUAL Mode 75
- PERMITTED Mode 75
- NORMAL Mode 75
- Configuring the FP-3000 77
- Write Lock 78
- Fieldbus Parameters 79
- Table B-1 81
- Error Codes 81
- BYPASS (Scaling, Tuning) 82
- CAS_IN (Process) 82
- CAS_IN_D (Process) 82
- CHANNEL (I/O, Process) 82
- CONFIRM_TIME (Alarming) 83
- SET_FSTATE 85
- CLR_FSTATE 85
- FEATURES 85
- FEATURE_SEL 85
- FF_GAIN (Scaling, Tuning) 86
- FF_SCALE (Scaling) 86
- HI_PRI (Alarming) 89
- IN (Process, Scaling, Tuning) 89
- L_TYPE (Scaling) 90
- MAX_NOTIFY (Alarming) 92
- MEMORY_SIZE (Diagnostic) 92
- NV_CYCLE_T (Diagnostic) 93
- UNIT_INDEX 94
- OUT_SCALE 95
- SHED_RCAS 95
- ROUT_OUT (Process) 97
- SEL_TYPE (Scaling) 97
- SHED_RCAS (Mode Shedding) 98
- SHED_ROUT (Mode Shedding) 98
- SIMULATE (Option) 98
- WRITE_PRI (Alarming, Option) 102
- XD_SCALE (Scaling) 102
- XD_STATE (Process) 102
- FP-3000 Specific Parameters 103
- CFG_OPTS 104
- CHECKBACK 104
- BLOCK_ALMS_ACT 104
- BLOCK_RESET 104
- CLEAR_LOG 105
- D_IN_0–D_IN_3 105
- D_OUT_0–D_OUT_7 105
- Module in Configuration 109
- Module Okay 109
- Incorrect Module for Block 109
- HI_OUT_D 110
- INIT_STATUS 110
- LAST_BLOCK_EVENT 110
- LAST_RUN_ERROR 111
- LO_LO_OUT_D 111
- LO_OUT_D 111
- LTYPE_DOMAIN_INDEX 111
- NVM_LIFE 111
- VERSION_INFORMATION 113
- Advanced Function 114
- Block Behavior 114
- Upstream 115
- Downstream 115
- Remote Cascades 116
- Fault State and Mode Shedding 117
- Specifications 118
- Troubleshooting 119
- Appendix F Troubleshooting 120
- I/O Module Problems 121
- Common Questions 125
- TRK_IN_D.VALUE 126
- TRK_VAL.VALUE 126
- EXECUTION_TIME 126
- Hexadecimal 126
- Worldwide Support 132
Verwandte Produkte und Handbücher für Hardware National-instruments FP-3000
(9 Seiten)© 2020, manymanuals.de. Alle Rechte vorbehalten. | 0.041 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Kommentare zu diesen Handbüchern