Rockwell-automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command Manuale Utente Scaricare il pdf (Pagina 196)

Reference

Data Encoding  Chapter 11

Uploading and Downloading with AB Processors 

Chapter 12

PLC Addressing  Chapter 13

Line Monitor Examples  Chapter 14

ASCII Codes  Chapter 15

1 2 ... 191 192 193 194 195 196 197 198 199 200 201 ... 250 251

Reference 1
Important User 2
Information 2
What's Changed in This 3
Document 3
Table of Contents 4
Table of Contentsii 5
Table of Contents iii 6
Table of Contentsiv 7
Table of Contents v 8
Table of Contentsvi 9
Encoding 10
Table of Contentsviii 11
About This Manual 12
What This Manual 13
Contains 13
Terms and Abbreviations 14
Related Publications 14
Related Products 15
Conventions Used in This 16
Network Basics 17
Network Layers 18
Physical Layer 19
1–4 Network Layers 21
1–6 Network Layers 23
Software Layers 24
Message Packet Structure 26
Protocol 29
Understanding DF1 Protocol 30
DF1 Protocol 31
• request-to-send (RTS) 32
• clear-to-send (CTS) 32
• data-carrier-detect (DCD) 32
• data-set-ready (DSR) 32
• data-terminal-ready (DTR) 32
Fullduplex Protocol 33
Character Transmission 34
Transmission Symbols 35
See APP DATA 36
Send and Receive Messages 38
Halfduplex Protocol Message 39
Transmission 39
Transmitter and Receiver 40
Message Transfer 40
Halfduplex Protocol 40
Environment 40
0HVVDJH &KDUDFWHULVWLFV 44
0DVWHU 3ROOLQJ 44
5HVSRQVLELOLWLHV 44
)XOO 6LQNV 45
6LPSOLILHG 1HWZRUN /D\HU 45
6ODYH 7UDQVFHLYHU $FWLRQV 46
+DOI'XSOH[ 3URWRFRO 48
'LDJUDPV 48
3ROO ZLWK 0HVVDJH 5HWXUQHG 51
0HVVDJH 6LQN )XOO &DVH  53
0HVVDJH 6LQN )XOO &DVH  54
Using Fullduplex Protocol to 55
Message Transmission 56
Message Characteristics 58
Transfer 58
How the Transmitter Operates 59
Diagrams 64
Message Transfer with NAK 65
In this transfer: 69
Message Packets 72
Datalink Layer Message 73
Message Frames 74
BCC and CRC Fields 76
Full-duplex protocol example 77
CRC Field 78
Application Layer Message 80
How Your Application 81
Program Sends and 81
Receives Messages 81
Message Packet Format 82
DST and SRC 83
CMD and FNC 84
STS and EXT STS 85
Communication Commands 88
7–2 Communication Commands 89
7–3Communication Commands 90
7–4 Communication Commands 91
7–5Communication Commands 92
7–6 Communication Commands 93
7–7Communication Commands 94
7–8 Communication Commands 95
7–10 Communication Commands 97
7–12 Communication Commands 99
phys. address 100
7–14 Communication Commands 101
SET RESET 102
to 60 masks of this form 102
7–19Communication Commands 106
7–20 Communication Commands 107
7–21Communication Commands 108
7–22 Communication Commands 109
7–23Communication Commands 110
7–25Communication Commands 112
7–27Communication Commands 114
PLC5 sys. address 115
Publication 116
17706.5.16 - October 1996 116
Set Reset 117
7–31Communication Commands 118
7–32 Communication Commands 119
PLC sys. address 121
PLC5 Type/Data 123
Parameter Examples 123
7–37Communication Commands 124
Example: 126
7–40 Communication Commands 127
Message Packet Status Codes 128
(STS, EXT STS) 128
STS Byte 129
EXT STS Byte 130
Remote STS and 132
EXT STS Codes 132
Module Diagnostics 138
Diagnostic Counters 139
9–2 Diagnostic Counters 140
1747 Cat. Nos 141
DH485 Diagnostic Counters 143
DF1 Diagnostic Counters 144
1761 Cat. Nos 145
1770 Cat. Nos 146
Counters 149
1771 Cat. Nos 152
1775 Cat. Nos 159
1779 Cat. Nos 162
1784 Cat. Nos 163
1785 Cat. Nos 164
• half-duplex slave 169
• half-duplex master 169
5250 Cat. Nos 171
Diagnostic Status Information 172
SLC 5/02 processors only 174
1761, 1770, and 1771 176
Cat. Nos 176
1770KF3 Status Bytes 178
1773, 1775, and 1779 182
1779KP5 Status Bytes 185
1785KA5 Status Bytes 188
1785KA3 Status Bytes 188
1785KE Status Bytes 190
L60L Status Bytes 193
5130 Cat. Nos 194
Data Encoding 197
Numbering Systems 198
Binary Coded Decimal 199
Hexadecimal 200
Binary Floatingpoint 201
Order of Transmission 202
A 16-Bit Word in PLC Memory 203
Right-to-Left Bit Order 203
Uploading and Downloading 204
Uploading from the 205
Processor 205
Downloading to the 209
PLC Addressing 216
PLC2/1774PLC 217
Addressing 217
PLC2 Physical Addressing 218
1774PLC Physical Addressing 218
PLC3 Addressing 219
PLC3 Logical Addressing 220
PLC3 Physical Addressing 222
PLC3 Symbolic Addressing 223
• and so on 223
PLC5 Addressing 224
PLC5 Logical Addressing 225
13–12 PLC Addressing 227
13–14 PLC Addressing 229
PLC5 Physical Addressing 231
PLC5 Floating Point 232
• low word then high word 232
• low byte then high byte 232
Line Monitor Examples 233
Halfduplex Line Monitor 234
Fullduplex PLC2 Line 235
Monitor Example 235
Fullduplex PLC3 Line 238
14 decimal) 239
TOTAL TRANS 239
DLE ETX (2 240
ASCII Codes 241
17706.5.16  July 1996 242
AllenBradley 249
Publication Problem Report 249
BUSINESS REPLY MAIL 250
Supersedes 251
Copyright 251
1996 AllenBradley Company 251
, Inc. Printed in USA 251

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Rockwell-automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command Manuale Utente Pagina 196

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