Rockwell Automation 1785 PLC-5 Manuel d'utilisateur Page 82
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Instruction Set
Program Control 3-38
program control instructions continued...
Instruction Description
Subroutine
SBR
The SBR instruction is the first instruction in a subroutine file. This instruction identifies Input
Parameters (N43:0, N43:1, N43:2) the processor receives from the corresponding JSR
instruction. You do not need the SBR instruction if you do not pass input parameters to the
subroutine.
Return
RET
The RET instruction ends the subroutine and stores the Return Parameters (N43:3, N43:4) to be
returned to the JSR instruction in the main program.
Temporary End
TND
The TND instruction stops the processor from scanning the rest of the program (i.e., this
instruction temporarily ends the program).
Always False
AFI
The AFI instruction disables the rung (i.e., the rung is always false).
One Shot
ONS
If the input conditions preceding the ONS instructions on the same rung go from false-to-true,
the ONS instruction conditions the rung so that the output is true for one scan. The rung is false
on successive scans.
SUBROUTINE
Input par N43:0
Input par N43:1
Input par N43:2
SBR
RETURN ()
Return par N43:3
Return par N43:4
RET
(TND)
[AFI]
B3
[ONS]
110
- Quick Reference 1
- Conventions 4
- Front Panel – Enhanced 5
- PLC-5 Processors 5
- Hardware Components 6
- Front Panel – Ethernet 7
- ControlNet PLC-5 Processors 8
- Front Panel – Classic 9
- Comparison Chart for 10
- PLC-5 Family Processors 10
- Processor Comparison 1-7 11
- Any mix of I/O 11
- Processor Comparison 1-8 12
- Any mix of I/O 12
- Processor Comparison 1-9 13
- Processors 14
- Power Supply Modules 1-11 15
- Power Supplies 1-12 16
- Front Panel Keyswitch 17
- Processor Status File 18
- Processor Status File 1-15 19
- Processor Status File 1-16 20
- Processor Status File 1-17 21
- Processor Status File 1-18 22
- Processor Status File 1-19 23
- Processor Status File 1-20 24
- Processor Status File 1-21 25
- Processor Status File 1-22 26
- Processor Status File 1-23 27
- S:25 Reserved 28
- Processor Status File 1-25 29
- Processor Status File 1-26 30
- Processor Status File 1-27 31
- Processor Status File 1-28 32
- I/O Status File Format 33
- I/O Status File 1-30 34
- I/O Status File 1-31 35
- Addressing Data Table Files 37
- Data Table Files 2-2 38
- Data Table Files 2-3 39
- PLC-5 Memory 39
- Data Table 39
- Program Files 40
- I/O Image Addressing 41
- Logical Addressing 42
- Addressing 43
- N[N7:0] file number 43
- N7:[C5:7.ACC] element number 43
- B3:/[I:017] bit number 43
- I/O Addressing Modes 44
- Addressing Concept Summary 44
- Status Bits 3-1 45
- Relay Instructions 46
- Relay 3-3 47
- Relay 3-4 48
- Timer Instructions 49
- Timer 3-6 50
- Counter Instructions 51
- Counter 3-8 52
- Compare Instructions 53
- Compare 3-10 54
- Compare 3-11 55
- Compute Instructions 56
- Compute 3-13 57
- Compute 3-14 58
- Compute 3-15 59
- Compute 3-16 60
- Compute 3-17 61
- Compute 3-18 62
- Compute 3-19 63
- Compute 3-20 64
- Compute 3-21 65
- Logical Instructions 66
- Logical 3-23 67
- Conversion Instructions 68
- Conversion 3-25 69
- Bit Modify and Move 3-26 70
- Bit Modify and Move 3-27 71
- File Instructions 72
- File Instructions 3-29 73
- Diagnostic Instructions 74
- Diagnostic 3-31 75
- Shift Register Instructions 76
- Shift Register 3-33 77
- Shift Register 3-34 78
- Sequencer Instructions 79
- Program Control Instructions 80
- Program Control 3-37 81
- Program Control 3-38 82
- Program Control 3-39 83
- Program Control 3-40 84
- Processor and Message 3-41 85
- Processor and Message 3-42 86
- Block and 87
- ControlNet 87
- Transfer Instructions 87
- Block Transfer 3-44 88
- Block Transfer 3-45 89
- Block Transfer 3-46 90
- ASCII Instructions 91
- ASCII Instructions 3-48 92
- ASCII Instructions 3-49 93
- ASCII Instructions 3-50 94
- ASCII Instructions 3-51 95
- ASCII Instructions 3-52 96
- Pressed in at bottom 100
- Open (OFF) 100
- Pressed in at top 100
- Closed (ON) 100
- Complementary I/O 4-5 101
- To select: Set switch: To: 103
- Switch Settings 103
- Side View 104
- Ethernet Configuration 106
- NET ADDRESS 107
- Network address 01 107
- Switch Assembly 108
- Classic PLC-5 109
- Switch Assembly 2 4-15 111
- Remote I/O Rack Number 112
- Scanner Module, or VME System 112
- Switch Assembly 2 113
- I/O Rack Number 4-18 114
- (8-word groups) 115
- I/O Rack Number 4-20 116
- I/O Rack Number 4-22 118
- General Problems 5-1 121
- Enhanced, Ethernet 121
- General Problems 5-2 122
- Communication Channel 5-3 123
- Communication Channel 5-4 124
- Communication Channel 5-5 125
- Communication Channel 5-6 126
- Ethernet 5-7 127
- Ethernet PLC-5 127
- Status Indicators 128
- ControlNet 5-9 129
- ControlNet PLC-5 129
- ControlNet 5-10 130
- ControlNet 5-11 131
- General Problems 5-12 132
- General Problems 5-13 133
- Adapter Mode 5-14 134
- Scanner Mode 5-15 135
- Scanner Mode 5-16 136
- I/O RACK 137
- A B 148
- Extended Local I/O 5-29 149
- 1771 I/O ControlNet 149
- Extended Local I/O 5-30 150
- ControlNet I/O Status 150
- Extended Local I/O 5-31 151
- Extended Local I/O 5-32 152
- Extended Local I/O 5-33 153
- Extended Local I/O 5-34 154
- Error Messages 155
- Extended Local I/O 5-36 156
- ControlNet Errors 156
- Extended Local I/O 5-37 157
- Extended Local I/O 5-38 158
- Extended Local I/O 5-39 159
- Extended Local I/O 5-40 160
- Extended Local I/O 5-41 161
- Extended Local I/O 5-42 162
- Extended Local I/O 5-43 163
- Extended Local I/O 5-44 164
- Troubleshooting 165
- Additional Major Fault Codes 166
- ControlNet processor 166
- Extended Local I/O 5-47 167
- Fault Codes 167
- Extended Local I/O 5-48 168
- Extended Local I/O 5-49 169
- Extended Local I/O 5-50 170
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