Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario Pagina 25
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1 Publication 1760-UM003A-EN-P - September 2005
Chapter
4
DeviceNet Functions
Object Model
The Pico DeviceNet Interface is based on the Communications
Adapter Profile according to the ODVA specifications (Release V2.0).
The DeviceNet object model can be used to describe all 1760-DNET
functions. The object model reflects the principle of communication at
the application layer. This manual deals in the following only with
objects relevant for your application. Primary topic is the
manufacturer-specific class Pico object.
Figure 3.5 DeviceNet Objects
The DeviceNet objects in the illustration can be compiled again as
‘Management objects’, ‘Connection objects’ and ‘Manufacturer-specific
objects’.
Object
Polled I/O
Connection
COS/Cyclic I/O
Connection
Bit Strobed I/O
Connection
Explicit Message
Connection
Dynamic
Connection
DeviceNet
Object
Message Router
Object
Acknowledge Handler
Object
Identity
Object
Pico
Object
Pico-LINK
Protocol Handler
Assembly
Object
Connection Object
DeviceNet
- Pico DeviceNet 1
- Communication 1
- Interface 1
- Important User Information 2
- Table of Contents 3
- Table of Contents 2 4
- Who Should Use this 5
- Purpose of this Manual 5
- Common Techniques Used 6
- Preface 4 8
- Pico DeviceNet Interface 9
- Structure of the Unit 10
- Communication Profile 10
- Hardware and Operating 10
- System Requirements 10
- Use Other Than Intended 11
- Installation 13
- Connect the Power Supply 14
- DeviceNet 14
- EMC Compatible Wiring 15
- Potential Isolation 16
- Data Transfer Rates – 16
- Automatic Baud Rate 16
- Recognition 16
- • or Flat Cable 17
- 2-6 Installation 18
- Initial Power On 19
- DeviceNet Setting the 19
- Slave Address 19
- With Pico-SOFT, version 3.1 21
- LED Status Displays 22
- Cycle Time of the Pico 23
- Basic Unit 23
- EDS File 23
- IMPORTANT 24
- DeviceNet Functions 25
- Management Objects 26
- Connection Objects 27
- Manufacturer-Specific Objects 28
- Identity Object 28
- Service Code 29
- DeviceNet Object 30
- Pico Object 30
- DeviceNet Communication 33
- General Method of Operation 34
- I/O Connection) 37
- Input data: 38
- Mode, S1 to S8 38
- Output Data: 40
- Mode, R1 – R16 40
- 0 = status ’0’ 1 = status ’1’ 42
- Value 19hex = 0001 1001bin: 42
- Enable R13, R12 and R9 42
- Application Examples for Pico 45
- Read/Write Date and Time 46
- Switching Rule Bit Array 47
- Read/Write Image Data 48
- A1 – A16 49
- Counters: C1 to C16 50
- Possible causes page 6-34 51
- Local inputs: I1 – I16 52
- (Low Byte first) 53
- (1) 02 = Analog input I11 54
- (2) Possible causes page 6-34 56
- (1) Possible causes page 6-34 57
- Local P buttons: P1 – P4 58
- Local outputs: Q1 – Q8 59
- Timers: T1 – T16 61
- Year time switch: Y1 – Y8 62
- Master reset: Z1 – Z3 63
- 7-day time switch: 63
- Counter relays: C1 – C16 67
- Example: 70
- Data 1 (Byte 4) = 0x01 70
- Meaning: 70
- Timing relays: T1 – T16 71
- Data 1 (Byte 4) = 0xAC 72
- Channel A, index 11/12 75
- Pico GFX Control Commands 81
- Version history 82
- Read/write date and time 82
- Winter/summer time, DST 84
- Switching rule bit array 85
- Read/write image data 87
- Local diagnostics: ID1 – ID16 89
- Read local inputs: IW0 90
- Marker: M 92
- ATTENTION 93
- Example 2: Write marker word 94
- Local analog output: QA1 96
- Local outputs: QW0/ 97
- Send data network: SN1 – SN32 99
- Read/write function block 100
- Overview 101
- High Byte) 103
- Block Compare: BC01 – BC32 105
- Block Transfer: BT01 – BT32 107
- Counter: C01 – C32 110
- Comparator: CP01 – CP32 116
- Data block: DB01 – DB32 120
- PID controller: DC01 – DC32 121
- Example 127
- Year time switch: HY01 – HY32 129
- Value scaling: LS01 – LS32 131
- Master reset: MR01 – MR32 132
- Hours-run meters: OT01 – OT04 135
- Timing relays: T01 – T32 141
- Value limitation: VC01 – VC32 143
- Analysis – error codes via 144
- PicoLink 144
- Troubleshoot Your Controller 147
- Specifications 149
- A-2 Specifications 150
- Specifications A-3 151
- Dimensions 152
- Glossary 153
- Glossary 2 154
- Glossary 3 155
- Glossary 4 156
- Glossary 5 157
- Glossary 6 158
- Glossary 7 159
- Glossary 8 160
- Glossary 9 161
- Glossary 10 162
- Glossary 11 163
- Glossary 12 164
- 2 Index 166
- Index 3 167
- Rockwell Automation 168
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