Home
GE
Controller
PACSystems RX7i
GE PACSystems RX7i User Manual
5
of 1
of 1 rating
469 pages
Give review
Manual
Specs
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
Chapter 5
.
Func
tion Block D
iagram (FBD)
236
PACSystems* RX7i, RX3i and RSTi-EP CPU Programmer's Reference Manual
GFK-
2950C
Function
Description
Calculates the sine o
f the operand IN, where IN is e
xpressed in rad
ian
s.
For details, refer to
T
rig Functions
in C
hapter 4.
Calculates the tangent o
f the operand IN, where
IN is expressed in radians.
For details, refe
r to
Trig Functions
in C
hapter 4.
250
252
Table of Contents
Default Chapter
4
Table of Contents
4
Table of Figures
15
Chapter 1 Introduction
16
Revisions in this Manual
17
Pacsystems Programming and Configuration
18
Migrating Series 90 Applications to Pacsystems
18
Pacsystems Documentation
19
Chapter 2 Program Organization
20
Structure of a Pacsystems Application Program
21
Blocks
21
Functions and Function Blocks
21
How Blocks Are Called
22
Nested Calls
22
Types of Blocks
23
Figure 1: Conditional Block Call
23
Figure 2: Block Call with Parameters
24
Figure 3: Defining Member Variables for a User-Defined Function Block
26
Figure 4: Creating a User-Defined Function Block
27
Figure 5: Use of User-Defined Function Block in Ladder Logic
27
Figure 6: Display of Instance Data Structures
27
Figure 7: Calling an External Block in Ladder Logic
30
Local Data
33
Figure 8: Relationship of %L & %P to Program Blocks
33
Figure 9: Local Data (%L) Usage by Program Blocks
33
Parameter Passing Mechanisms
34
Figure 10: Parameter Passing Example
34
Languages
36
Figure 11: Explanation of Ladder Diagram Rung
36
Figure 12: Illustration of Function Block Diagram
37
Controlling Program Execution
39
Interrupt-Driven Blocks
40
Interrupt Handling
41
Figure 13: Conflict Avoidance When Using Interrupt-Driven Blocks
41
Timed Interrupts
42
I/O Interrupts
42
Module Interrupts
42
Interrupt Block Scheduling
43
Chapter 3 Program Data
44
Variables
45
Mapped Variables
45
Symbolic Variables
46
I/O Variables
47
Arrays
49
Variable Indexes and Arrays
49
Reference Memory
52
Word (Register) References
52
Bit (Discrete) References
54
User Reference Size and Default
55
G User References and CPU Memory Locations
55
Genius Global Data
56
Transitions and Overrides
57
Retentiveness of Logic and Data
58
Data Scope
59
System Status References
60
S References
61
SA, %SB, and %SC References
62
Fault References
64
How Program Functions Handle Numerical Data
66
Data Types
66
Floating Point Numbers
68
User Defined Types (Udts)
70
Working with Udts
70
UDT Properties
70
UDT Limits
71
RUN Mode Store of Udts
71
UDT Operational Notes
72
Operands for Instructions
73
Word-For-Word Changes
75
Exception: Symbolic Variables
75
Chapter 4 Ladder Diagram (LD) Programming
76
Advanced Math Functions
77
Exponential/Logarithmic Functions
78
Square Root
79
Trig Functions
80
Inverse Trig - ASIN, ACOS, and ATAN
81
Bit Operation Functions
82
Data Lengths for the Bit Operation Functions
83
Bit Position
84
Bit Sequencer
85
Bit Set, Bit Clear
88
Bit Test
89
Logical AND, Logical OR, and Logical XOR
90
Logical NOT
92
Masked Compare
93
Rotate Bits
96
Shift Bits
97
Coils
99
Coil Checking
99
Graphical Representation of Coils
100
Set Coil, Reset Coil
101
Transition Coils
102
Contacts
106
Continuation Contact
107
Fault Contact
108
High and Low Alarm Contacts
109
No Fault Contact
110
Normally Closed and Normally Open Contacts
111
Transition Contacts
112
Control Functions
117
Do I/O
118
Edge Detectors
121
Drum
123
For Loop
127
Mask I/O Interrupt
129
Read Switch Position
130
Scan Set IO
131
Suspend I/O
132
Suspend or Resume I/O Interrupt
133
Conversion Functions
134
Convert Angles
135
Convert UINT or INT to BCD4
136
Convert DINT to BCD8
137
Convert BCD4, UINT, DINT, or REAL to INT
138
Convert BCD4, INT, DINT, or REAL to UINT
140
Convert BCD8, UINT, INT, REAL or LREAL to DINT
142
Convert BCD4, BCD8, UINT, INT, DINT, and LREAL to REAL
144
Convert REAL to LREAL
146
Convert DINT to LREAL
146
Truncate
147
Counters
148
Data Required for Counter Function Blocks
148
Down Counter
150
Up Counter
151
Data Move Functions
153
Array Size
155
Array Size Dimension Function Blocks
156
Block Clear
158
Block Move
159
BUS_ Functions
160
Communication Request (COMMREQ)
166
Data Initialization
171
Data Initialize ASCII
172
Data Initialize Communications Request
173
Data Initialize DLAN
174
Move
175
Move Data
177
Move Data Explicit
178
Move from Flat
179
Move to Flat
181
Shift Register
183
Size of
185
Swap
186
Data Table Functions
187
Array Move
189
Array Range
191
FIFO Read
193
FIFO Write
195
LIFO Read
197
LIFO Write
198
Search
199
Sort
201
Math Functions
204
Overflow
205
Absolute Value
206
Add
207
Divide
209
Modulus
211
Multiply
212
Scale
214
Subtract
215
Program Flow Functions
216
Argument Present
217
Call
218
Comment
221
Jumpn
222
Master Control Relay/End Master Control Relay
223
Wires
225
Relational Functions
226
Compare
227
Equal, Not Equal, Greater or Equal, Greater Than, Less or Equal, Less than
228
Eq_Data
229
Range
230
Timers
231
Timed Contacts
231
Timer Function Blocks
232
Standard Timer Function Blocks
243
Chapter 5 Function Block Diagram (FBD)
248
Note on Reentrancy
249
Advanced Math Functions
250
EXPT Function
252
Bit Operation Functions
253
Logical AND, Logical OR, and Logical XOR
255
Logical NOT
257
Comments
258
Text Block
258
Comparison Functions
259
Equal, Not Equal, Greater or Equal, Greater Than, Less or Equal, Less than
261
Control Functions
262
Counters
264
Data Move Functions
265
Fan out
269
Move Data
270
Math Functions
272
Overflow
273
Add
274
Divide
275
Modulus
276
Multiply
277
Negate
278
Subtract
279
Program Flow Functions
280
Timers
281
Built-In Timer Function Blocks
281
Standard Timer Function Blocks
282
Type Conversion Functions
283
Convert WORD to INT
285
Convert WORD to UINT
286
Convert DWORD to DINT
287
Convert INT or UINT to WORD
288
Convert DINT to DWORD
289
Chapter 6 Service Request Function
290
Operation of SVC_REQ Function
291
Ladder Diagram
291
Function Block Diagram
292
SVC_REQ 1: Change/Read Constant Sweep Timer
293
To Disable Constant Sweep Mode
293
To Enable Constant Sweep Mode and Use the Old Timer Value
293
To Enable Constant Sweep Mode and Use a New Timer Value
293
To Change the Timer Value Without Changing the Selection for Sweep Mode State
293
To Read the Current Timer State and Value Without Changing Either
294
SVC_REQ 2: Read Window Modes and Time Values
295
SVC_REQ 3: Change Controller Communications Window Mode
296
To Disable the Controller Communications Window
296
To Re-Enable or Change the Controller Communications Window Mode
296
SVC_REQ 4: Change Backplane Communications Window Mode and Timer Value
297
To Disable the Backplane Communications Window
297
To Enable the Backplane Communications Window Mode
297
SVC_REQ 5: Change Background Task Window Mode and Timer Value
298
To Disable the Background Task Window
298
To Enable the Background Task Window Mode
298
SVC_REQ 6: Change/Read Number of Words to Checksum
299
To Read the Word Count
299
To Set a New Word Count
299
SVC_REQ 7: Read or Change the Time-Of-Day Clock
301
Parameter Block Formats
301
SVC_REQ 8: Reset Watchdog Timer
309
SVC_REQ 9: Read Sweep Time from Beginning of Sweep
310
SVC_REQ 10: Read Target Name
311
SVC_REQ 11: Read Controller ID
312
SVC_REQ 12: Read Controller Run State
313
SVC_REQ 13: Shut down (STOP) CPU
314
SVC_REQ 14: Clear Controller or I/O Fault Table
315
SVC_REQ 15: Read Last-Logged Fault Table Entry
316
SVC_REQ 16: Read Elapsed Time Clock
319
SVC_REQ 17: Mask/Unmask I/O Interrupt
321
Masking/Unmasking Module Interrupts
321
SVC_REQ 18: Read I/O Forced Status
323
SVC_REQ 19: Set Run Enable/Disable
324
SVC_REQ 20: Read Fault Tables
325
Non-Extended Formats
326
Extended Formats
329
SVC_REQ 21: User-Defined Fault Logging
334
SVC_REQ 22: Mask/Unmask Timed Interrupts
336
SVC_REQ 23: Read Master Checksum
337
SVC_REQ 24: Reset Module
338
SVC_REQ 25: Disable/Enable EXE Block and Standalone C Program Checksums
339
SVC_REQ 29: Read Elapsed Power down Time
340
SVC_REQ 32: Suspend/Resume I/O Interrupt
341
SVC_REQ 45: Skip Next I/O Scan
342
SVC_REQ 50: Read Elapsed Time Clock
343
SVC_REQ 51: Read Sweep Time from Beginning of Sweep
345
SVC_REQ 56: Logic Driven Read of Nonvolatile Storage
346
Discrete Memory
346
Storage Disabled Conditions
346
Maximum of One Active Instruction
346
ENO and Power Flow to the Right
346
Parameter Block
347
SVC_REQ 57: Logic Driven Write to Nonvolatile Storage
350
Length of Data Written
350
Write Frequency
350
Erase Cycles
351
Discrete Memory
351
Retentiveness
351
Maximum of One Active Instruction
351
Storage Disabled Conditions
351
Error Checking
351
Fragmentation
352
When Nonvolatile Storage Is Full
352
Equality
353
Redundancy
353
ENO and Power Flow to the Right
353
Parameter Block for SVC_REQ 57
354
Chapter 7 PID Built-In Function Block
358
Figure 14: PID in Ladder Diagram
358
Figure 15: PID in Function Block Diagram
358
Operands of the PID Function
359
Operands for LD Version of PID Function Block
359
Operands for FBD Version of PID Function Block
360
Reference Array for the PID Function
361
Scaling Input and Outputs
361
Reference Array Parameters
362
Operation of the PID Function
368
Automatic Operation
368
Manual Operation
368
Time Interval for the PID Function
369
PID Algorithm Selection (PIDISA or PIDIND) and Gain Calculations
370
Figure 16: PID_IND Diagram
370
Derivative Term
371
Error Term Mode
371
Derivative Action on PV Bit
371
Combined Operation of Error Term and Derivative Action Modes
371
CV Bias Term
372
CV Amplitude and Rate Limits
372
Sample Period and PID Function Block Scheduling
373
Determining the Process Characteristics
374
Setting Tuning Loop Gains
375
Basic Iterative Tuning Approach
375
Setting Loop Gains Using the Ziegler and Nichols Tuning Approach
376
Ideal Tuning Method
377
PID Example
378
Reference Array Initialization Using %M00006
378
Figure 17: PID Example Logic
379
Chapter 8 Structured Text (ST) Programming
380
Language Overview
380
Statements
380
Expressions
380
Operators
381
Structured Text Syntax
382
Statement Types
383
Assignment Statement
384
Function Call
385
RETURN Statement
388
IF Statement
389
CASE Statement
390
For
392
WHILE Statement
394
REPEAT Statement
395
ARG_PRES Statement
396
Exit Statement
397
Chapter 9 Diagnostics
398
Fault Handling Overview
399
System Response to Faults
399
Fault Tables
399
Fault Actions and Fault Action Configuration
400
Using the Fault Tables
401
Controller Fault Table
401
Figure 18: Controller Fault Table Display
401
Figure 19: Detail Information for Controller Fault Entry
402
I/O Fault Table
403
Figure 20: I/O Fault Table Display
403
Figure 21: I/O Fault Table Fault Entry Detail Display
404
System Handling of Faults
405
System Fault References
406
Using Fault Contacts
409
Using Point Faults
411
Using Alarm Contacts
411
Controller Fault Descriptions and Corrective Actions
412
Controller Fault Groups
412
Loss of or Missing Rack (Group 1)
413
Loss of or Missing Option Module (Group 4)
414
Addition Of, or Extra Rack (Group 5)
414
Reset Of, Addition Of, or Extra Option Module (Group 8)
415
System Configuration Mismatch (Group 11)
416
System Bus Error (Group 12)
422
CPU Hardware Failure (Group 13)
423
Module Hardware Failure (Group 14)
424
Option Module Software Failure (Group 16)
425
Program or Block Checksum Failure (Group 17)
426
Battery Status (Group 18)
427
Constant Sweep Time Exceeded (Group 19)
428
System Fault Table Full (Group 20)
428
I/O Fault Table Full (Group 21)
428
User Application Fault (Group 22)
429
CPU Over-Temperature (Group 24)
431
Power Supply Fault (Group 25)
431
No User Program on Power-Up (Group 129)
431
Corrupted User Program on Power-Up (Group 130)
432
Window Completion Failure (Group 131)
432
Password Access Failure (Group 132)
433
Null System Configuration for RUN Mode (Group 134)
433
CPU System Software Failure (Group 135)
434
Communications Failure During Store (Group 137)
436
Non-Critical CPU Software Event (Group 140)
437
I/O Fault Descriptions and Corrective Actions
439
Fault Extra Data
439
I/O Fault Groups
439
I/O Fault Categories
440
Circuit Faults (Category 1)
443
Loss of Block (Category 2)
448
Addition of Block (Category 3)
449
I/O Bus Fault (Category 6)
450
Module Fault (Category 8)
451
Addition of IOC (Category 9)
452
Loss of or Missing IO Controller (Category 10)
452
IOC (I/O Controller) Software Fault (Category 11)
453
Forced and Unforced Circuit (Categories 12 and 13)
453
Loss of or Missing I/O Module (Category 14)
454
Addition of I/O Module (Category 15)
454
Extra I/O Module (Category 16)
454
Extra Block (Category 17)
455
IOC Hardware Failure (Category 18)
455
GBC Stopped Reporting Faults (Category 19)
455
GBC Software Exception (Category 21)
456
Block Switch (Category 22)
457
Reset of IOC (Category 27)
457
Diagnostic Logic Blocks (Dlbs)
458
DLB Operation
459
Figure 22: Diagnostic Logic Blocks (Dlbs) Assigned to Target in MPE
459
Executing Dlbs
461
Figure 23: Properties of Diagnostic Logic Block (DLB)
461
Figure 24: DLB Heartbeat Setting
461
Diagnostic Logic Block (DLB) Example
465
Figure 25: Drag DLB from Toolchest and Drop in Active Blocks Node
467
Figure 26: Set DLB Execution Mode to Sweep (Properties Tab)
467
Figure 27: Start DLB Execution
467
Figure 28: Initialize Local Symbolic Variables
468
Figure 29: DLB Icon and Status Bar after Execution Has Commenced
468
Figure 30: Data Watch for DLB Variables
468
Other manuals for GE PACSystems RX7i
Reference Manual
317 pages
5
Based on 1 rating
Ask a question
Give review
Questions and Answers:
Need help?
Do you have a question about the GE PACSystems RX7i and is the answer not in the manual?
Ask a question
GE PACSystems RX7i Specifications
General
Brand
GE
Model
PACSystems RX7i
Category
Controller
Language
English
Related product manuals
GE PACSystems RX3i
169 pages
GE PACSystems IC695CPU3104
32 pages
GE PAC8000 series
50 pages
GE AF-300 P11
154 pages
GE prolec VR-1
44 pages
GE VersaMax PLC
318 pages
GE Series 90-30 PLC
445 pages
GE D25
170 pages
GE RX3i
276 pages
GE ZW4002
2 pages
GE VersaMax
504 pages
GE Multilin F650
533 pages
To Next PageTo Next PageTo Previous PageTo Previous Page
Loading...
Need help?
General
