Allen-Bradley micrologix 1500 - Page 242

Allen-Bradley micrologix 1500

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Publication 1762-RM001C-EN-P

18-22 Using Interrupts

Table of Contents

Default Chapter7
- Table of Contents7
- Purpose of this Manual13
Who Should Use this Manual13
- Common Techniques Used in this Manual14
- Rockwell Automation Support15
Chapter 1 Embedded I/O17
- Micrologix 1200 Expansion I/O19
- Micrologix 1200 Expansion I/O Memory Mapping20
- Micrologix 1500 Compact™ Expansion I/O23
- Micrologix 1500 Compact™ Expansion I/O Memory Mapping25
- I/O Addressing29
- I/O Forcing30
- Input Filtering30
- Latching Inputs31
- Configuring Expansion I/O Using Rslogix 50034
Chapter 2 Controller Memory36
- Data Files39
- Protecting Data Files During Download40
- Static File Protection42
- Password Protection43
- Clearing the Controller Memory44
- Allow Future Access Setting (OEM Lock)44
Chapter 3 Overview46
- Real-Time Clock Function File47
- Trim Pot Information Function File49
- Memory Module Information Function File50
- DAT Function File (Micrologix 1500 Only)53
- Base Hardware Information Function File56
- Communications Status File57
- Input/Output Status File62
Chapter 4 Instruction Set63
- Using the Instruction Descriptions64
Chapter 572
- High-Speed Counter (HSC) Function File72
- High-Speed Counter Function File Sub-Elements Summary74
- HSC Function File Sub-Elements75
- HSL - High-Speed Counter Load96
- RAC - Reset Accumulated Value97
PTO - Pulse Train Output99
Chapter 6100
- Pulse Train Output Function100
- Pulse Train Outputs (PTO) Function File104
- Pulse Train Output Function File Sub-Elements Summary105
- PWM - Pulse Width Modulation116
- PWM Function116
- Pulse Width Modulation (PWM) Function File117
- Pulse Width Modulated Function File Elements Summary118
XIC - Examine if Closed XIO - Examine if Open125
Chapter 7127
- OTE - Output Energize127
- OTL - Output Latch OTU - Output Unlatch128
- ONS - One Shot129
- OSR - One Shot Rising OSF - One Shot Falling130
Chapter 8133
- Timer Instructions Overview133
- TON - Timer, On-Delay136
- TOF - Timer, Off-Delay137
- RTO - Retentive Timer, On-Delay138
- How Counters Work139
- CTU - Count up CTD - Count down141
- RES - Reset142
Chapter 9 Using the Compare Instructions144
- EQU - Equal NEQ - Not Equal145
- GRT - Greater than LES - Less than146
- GEQ - Greater than or Equal to LEQ - Less than or Equal to147
- MEQ - Mask Compare for Equal148
- LIM - Limit Test149
Chapter 10 Using the Math Instructions152
- Updates to Math Status Bits153
- ADD - Add SUB - Subtract154
- MUL - Multiply DIV - Divide155
- NEG - Negate156
- CLR - Clear156
- SCL - Scale157
- SCP - Scale with Parameters158
- SQR - Square Root159
- SWP - Swap160
Using Decode and Encode Instructions163
Chapter 11164
- DCD - Decode 4 to 1-Of-16164
- ENC - Encode 1-Of-16 to 4165
- FRD - Convert from Binary Coded Decimal (BCD)166
- TOD - Convert to Binary Coded Decimal (BCD)170
Chapter 12 Using Logical Instructions173
- Updates to Math Status Bits174
- AND - Bit-Wise and175
- OR - Logical or176
- XOR - Exclusive or177
- NOT - Logical NOT178
Chapter 13 MOV - Move179
- MVM - Masked Move181
Chapter 14 COP - Copy File184
- FLL - Fill File185
- BSL - Bit Shift Left186
- BSR - Bit Shift Right188
- FFL - First In, First out (FIFO) Load190
- FFU - First In, First out (FIFO) Unload193
- LFL - Last In, First out (LIFO) Load196
- LFU - Last In, First out (LIFO) Unload199
Sequencer Instructions201
Chapter 15 SQC- Sequencer Compare202
- SQO- Sequencer Output205
- SQL - Sequencer Load208
Chapter 16 JMP - Jump to Label211
- LBL - Label212
- JSR - Jump to Subroutine212
- SBR - Subroutine Label213
- RET - Return from Subroutine213
- SUS - Suspend214
- TND - Temporary End214
- END - Program End215
- MCR - Master Control Reset215
Chapter 17219
- IOM - Immediate Output with Mask219
- REF- I/O Refresh220
Chapter 18 Information about Using Interrupts222
- User Interrupt Instructions227
- INT - Interrupt Subroutine227
- STS - Selectable Timed Start228
- UID - User Interrupt Disable229
- UIE - User Interrupt Enable230
- UIF - User Interrupt Flush231
- Using the Selectable Timed Interrupt (STI) Function File232
- Using the Event Input Interrupt (EII) Function File237
User Program for more Access Information237
- Read Only237
Chapter 19 The PID Concept243
- The PID Equation244
- PD Data File244
- PID - Proportional Integral Derivative245
- Input Parameters246
- Output Parameters249
- Tuning Parameters250
  - Read Only253
- Runtime Errors258
- Analog I/O Scaling259
- Application Notes260
- Application Examples264
Chapter 20 General Information269
- Instruction Types and Operation270
- Protocol Overview272
- String (ST) Data File273
- Control Data File274
- ACL - ASCII Clear Buffers275
- AIC - ASCII Integer to String276
- AWA - ASCII Write with Append277
- AWT - ASCII Write279
- ABL - Test Buffer for Line282
- ACB - Number of Characters in Buffer283
- ACI - String to Integer284
- ACN - String Concatenate286
- AEX - String Extract287
- AHL - ASCII Handshake Lines288
- ARD - ASCII Read Characters290
- ARL - ASCII Read Line291
- ASC - String Search293
- ASR - ASCII String Compare294
- Timing Diagram for ARD, ARL, AWA, and AWT Instructions296
- Using In-Line Indirection297
- ASCII Instruction Error Codes298
- ASCII Character Set299
ASCII Instructions269
Chapter 21303
- MSG - Message303
- The Message File304
  - Read/Write305
- Local Messages307
- Configuring a Local Message309
- Remote Messages316
- Configuring a Remote Message318
- MSG Instruction Error Codes321
- Timing Diagram for the MSG Instruction323
- SVC - Service Communications326
- MSG Instruction Ladder Logic328
- Local Messaging Examples329
Chapter 22 Queues and Records334
- Configuring Data Log Queues338
- DLG - Data Log Instruction340
- Data Log Status File341
- Retrieving (Reading) Records343
- Accessing the Retrieval File343
- Conditions that will Erase the Data Retrieval File345
- Programming Instructions Memory Usage and Execution Time347
Appendix A Micrologix 1200 Scan Time Worksheet353
- Programming Instructions Memory Usage and Execution Time355
Appendix B Micrologix 1500 Scan Time Worksheet360
Appendix C Status File Overview362
- Status File Details363
- Identifying Controller Faults383
Appendix D Contacting Rockwell Automation for Assistance391
Appendix E Communication Protocol394
- DF1 Full-Duplex Protocol397
- DF1 Half-Duplex Protocol398
- Modbus™ RTU Slave Protocol401
- ASCII Driver405
Glossary407

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