Rockwell-automation 1336T Function Block Prog. Manual, Series A/B Uživatelský manuál Strana 157
- Strana / 180
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
5–41Block Transfer Services
1336 FORCE — 5.9 August 1995
The Read Node Value message reads the value of the specified
function block node.
PLC Block Transfer Instruction Data
BTW Instruction Length: 3 Words
BTR Instruction Length: 4 Words
Header
Word 1
PLC Hex Value
0F01
Message Structure
Header
Word 2
Header
Word 3
PLC Request –– Block Transfer Write
Header Word 1
Header Word 2
Header Word 3
0
Data
Word 4
0
PLC Hex Value
0F01 –– Message OK
8F01 –– Message Error
Node
Value
IDN
8NID
High Byte Low Byte
Drive Response –– Block Transfer Read
where:
N = the node number
ID = the block ID number
IDN
8NID
High Byte Low Byte
If N=16, 8NID becomes 90ID.
Message Operation
Word 3 specifies the function block node.
❒ ID indicates the block ID number is specified in the low byte.
❒ N indicates the node number is specified in the high byte (bits 8
through 14).
Example
In this example, a Read Node Value message was sent to the drive to
read the value of node 1 of the Scale function block (block ID 11
Dec
,
0B
Hex
). The drive response indicates the value of node 1 is 4.
10
N10:10
23456789
N10:90
BTW
Data File
BTR
Data File
Data Format
810B
810B 4
0
0
0F01
0F01
Note: The output of a Bin2Dec block is node 16
Dec
, and would be
specified as 900B if it were assigned a block ID number of 11
Dec
.
Node Adjustment:
Read Node Value
- 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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