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Valorado. / 5. Basado en revisión del cliente
Message Packet Formats
Chapter 5
5-47
The link ID (presently not used, set it to zero) and the station address are
one byte while the file number is two bytes. The format for this message
is as follows:
Command
Format:
Reply Format:
TNSSTSCMD
0F
SRCDST
TNSSTSCMD
4F
SRCDST
FNC
5E
EXT
STS
LINK
ID
STATION
ADDRESS
FILE
NUMBER
The STS and EXT STS bytes contain status and error code information.
For more information on these bytes, see the “Error Codes” section in this
document.
Read Bytes Physical
Use this command to perform an Upload Only after anUpload (or
Download) All Request has been successfully performed.
Command
Format:
Reply Format:
TNSSTSCMD
0F
SRCDST
TNSSTSCMD
4F
SRCDST
FNC
17
DATA
(Up to 240 Bytes)
SIZE
1
1
The Physical
Address is a 4-byte field:
Byte
Physical Address Bit(s)
1
2
3
4
A00 -
A07
A08 -
A15
A16 -
A23
A24 -
A31
SIZE: The SIZE byte is a one-byte field that contains the number of bytes to read
up to 240 (must be an even number).
2
This byte will be the Extended Status byte if there is an error; otherwise it will be
data at Physical
Address, first word, low byte.
2
- Interface Module 1
- Important User Information 2
- Table of Contents 3
- Table of Contentsii 4
- Introduction 5
- Figure 1.1 7
- 1770-KF2 7
- Chapter 1 8
- Specifications 8
- Communication Concepts 13
- Figure 2.1 15
- Highway Network 15
- Figure 2.2 17
- Network Connected to V 17
- Installation 25
- Figure 3.2 28
- Figure 3.5 33
- Dimensions 33
- Chapter 3 39
- Figure 3.10 42
- Diagnostic 42
- (LED) Indicators 42
- Asynchronous Link Protocols 44
- Figure 4.1 47
- Figure 4.3 50
- Software 50
- Implementation of Data Paths 50
- Figure 4.6 52
- Protocol 52
- Environment 52
- Figure 4.7 54
- Logic for Implementing T 54
- Chapter 4 55
- Figure 4.13 62
- Message T 62
- Figure 4.14 67
- Figure 4.15 70
- Figure 4.24 78
- Message Sink Full, Case 2 78
- DLE ENQ STN BCC DLE EOT 79
- Message Packet Formats 80
- Figure 5.1 81
- Chapter 5 87
- Command Packet: 110
- Command Format: 116
- Data Encoding and Addressing 138
- Figure 6.1 139
- Numbers 139
- Figure 6.2 140
- Representation, Number 239 141
- Figure 6.3 141
- Figure 6.4 142
- Hexadecimal 142
- Figure 6.5 143
- 00100000 00000000 146
- First Byte Second Byte 146
- 00110100 00000000 151
- 00 0010100010 152
- 00 0000 0001000110 152
- Error Reporting 156
- Chapter 7 159
- Local Error Codes 164
- EXT STS byte 196
- Switch Settings 197
- Appendix A 198
- Message Formats 200
- (STS, EXT STS) 201
- Detailed Flowcharts 205
- Appendix D 206
- Data Link Layer 228
- Figure E.1 229
- Transition at Master Station 229
- Worldwide representation 235
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