Rockwell-automation 1336T Function Block Prog. Manual, Series A/B Instrukcja Użytkownika Strona 109
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Oceniono. / 5. Na podstawie oceny klientów
Function Block Library 4–47
1336 FORCE — 5.9 August 1995
Bit 31 is the sign bit, the most significant bit for 32 bit values. For 16
bit values, bit 15 (the sign bit) is the most significant bit.
EXAMPLES Example 1 EXAMPLE 2 EXAMPLE 2
Input 32767 56 –2
Mult 32767 128 16383
Div 1 10 1
Out LSW 1 716 32770
Out MSW 16383 0 –1
OUTPUT VALUE
1073676289 716 –32766
Example 1 — Double Word Output Value = 1073676289 = 32767 × 32767÷ 1
16383
dec
1
dec
3FFF
hex
0001
hex
Most Significant Word
Node 4
Least Significant Word
Node 3
Important: The output range of the multiplied values can be critical. Should only one
output word (LSW node) of the SCALE block be used, it will appear to roll
over or under if the product exceeds ±32767.
+16383 (Upper Waveform)
t1
SCALE
Out LSW
SCALE Input
+32
7
6
7
(Upper Wavef
o
r
m)
0 (Upper Waveform)
0 (Lower Waveform)
–32767 (Upper Waveform)
+32767 (Lower Waveform)
–32767 (Lower Waveform)
In the Upper Waveform above, the SCALE Input (node 0), is multiplied by a
Mult (node 1) value of 2 and divided by a Div (node 2) value of 1. As the
input value increases beyond 16383 (time t1), the product increases
beyond +32767. Although the Out LSW output (node 3) has a range of 0 to
65535 (0 to FFFF
hex
), the analog input has a single word signed range of
±32767. When the input reaches 16385, the multiplied output of 32770
(8002
hex
) is interpreted by the signed analog output parameter as having a
value of –32766 which makes it appear to roll over.
SCALE
(continued)
- Function Block 1
- Programming 1
- Important User Information 2
- Table of Contents 3
- Function Block Library 4
- Chapter 6 5
- End of Table of Contents 6
- Chapter 1 7
- Chapter 2 7
- PrefaceP–2 8
- Preface P–3 9
- Components 10
- End of Preface 12
- Getting Started 13
- Getting Started Using 15
- DriveBlockEditor 15
- ❒ Click on CLOSE 16
- BLOCK ID# 17
- Set Reset FF 18
- 1–7Getting Started 19
- Multiplexer 20
- 1–9Getting Started 21
- Rate Limiter 22
- Step 6 — Check Links 23
- Step 7 — Download the Program 23
- Block Nodes 24
- 1–13Getting Started 25
- Step 9 — Modify Node Values 26
- Getting Started Using a PLC 27
- 1–16 Getting Started 28
- Step 3 — Write Node Values 29
- 1–18 Getting Started 30
- Step 4 — Write Links 31
- 1–20 Getting Started 32
- Step 5 — View Node Values 33
- Download to Drive 33
- 1–22 Getting Started 34
- System Component Detail 35
- 2–2 System Component Detail 36
- 2–3System Component Detail 37
- 2–4 System Component Detail 38
- Example Execution Lists 39
- Linking Events 39
- ADD2 SCALEInput Output 40
- MULTIPLY 40
- Downloading and 42
- Compiling the Execution 42
- Understanding Function 43
- Block I/O Nodes 43
- Node Data Types 46
- Creating Links Between Nodes 47
- 2–14 System Component Detail 48
- System Interactions 49
- The Function Block Init 50
- The Function Block Store 50
- The Function Block Recall 51
- Linear Parameter 51
- BRAM Functions and Links 51
- Power Up Sequence 53
- Compiler Modes and Terminal 54
- Operation Differences 54
- Compiler Modes 54
- Subsequent Compile Mode 55
- DriveTools’ DriveBlockEditor 56
- Operation 56
- Graphic Programming 57
- Terminal 57
- PLC Block Transfer 57
- Understanding Multiple 58
- Execution List Copies 58
- Task Status Service 59
- Link Processing Faults 60
- Performance Issues Involving 61
- Link Processing Sequence 62
- Double Word Function Block 64
- Function Block Index 65
- BLOCK TYPE 1 66
- BLOCK TYPE 3 67
- 0 000001000000010 68
- COMPHYST 69
- BLOCK TYPE 5 71
- 0 000000000001110 72
- BLOCK TYPE 6 73
- BLOCK TYPE 7 75
- BLOCK TYPE 23 77
- BLOCK TYPE 25 80
- BLOCK TYPE 8 81
- BLOCK TYPE 2 83
- BLOCK TYPE 16 84
- FUNCTION 85
- INTEGRATOR 88
- BLOCK TYPE 12 92
- BLOCK TYPE 15 93
- BLOCK TYPE 13 94
- MONOSTABLE 95
- MULTIPLEXER 96
- DEFINITION 99
- A PLC place holder 99
- BLOCK TYPE 17 100
- (continued) 101
- PULSE CNTR 104
- RATE LIMITER 106
- Example 1 107
- BLOCK TYPE 20 108
- BLOCK TYPE 22 110
- BLOCK TYPE 27 111
- BLOCK TYPE 11 112
- BLOCK TYPE 26 113
- UP/DWN CNTR 114
- Block Transfer Services 117
- Block Transfer Status 118
- Application Status 120
- Services: 120
- Event List Checksum 121
- 3842 –– Message OK 124
- –28926 –– Message Error 124
- 3841 –– Message OK 125
- –28927 –– Message Error 125
- Read Task Status 127
- 3845 –– Message OK 128
- –28923 –– Message Error 128
- Fault Status Read 129
- 3840 –– Message OK 130
- –28928 –– Message Error 130
- Program Limits 132
- Information: 132
- Application Control 135
- Commands: 135
- BRAM Functions 136
- 0F03 –– Message OK 137
- 8F03 –– Message Error 137
- Download and Compile 139
- Read Single Event 143
- Clear/Process Links 145
- 3844 –– Message OK 146
- –28924 –– Message Error 146
- 0F05 ––Message OK 147
- 8F05 –– Message Error 147
- ID = block ID number 147
- Read Block Value 148
- 0F05 –– Message OK 149
- ID = the block ID number 149
- Write Block Value 150
- 0F06 –– Message OK 151
- 8F06 –– Message Error 151
- Write Block Link 153
- Node Adjustment: 154
- Read Full Node 155
- Information 155
- Read Node Link 160
- Write Node Link 162
- Warnings 163
- Function Block Warnings 164
- ❒ the system fault queue 164
- ❒ the system warning queue 164
- Accessing the System 165
- Fault and Warning Queues 165
- Handling Download 165
- Service Errors 165
- Handling Compile Faults 166
- Link Processing Fault 167
- I/O Node Limit Fault 167
- Memory Limit Fault 167
- BRAM Checksum Fault 168
- Using the Task Status Service 169
- Using the Fault Status 170
- Clear Faults Command 171
- Fault Codes 172
- CUT ALONG DOTTED LINE 177
- ALLEN-BRADLEY 178
- Worldwide representation 180
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