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Linking to Other Systems with FETCH/WRITE
213
SIMATIC NET NCM S7 for Industrial Ethernet
C79000-G8976-C129–06
a) Structure of FETCH Frames
The meaning and values of parameters shown without values in the following table
can be found in the section “Parameter Values“.
FETCH request frame FETCH response frame
0
System ID
=”S” 0 System ID =”S”
1 =”5” 1 =”5”
2
Length of header
=16d. 2 Length of header =16d.
3
ID OP code
=01 3 ID OP code =01
4
Length OP code
=03 4 Length OP code =03
5
OP code
=05 5 OP code =06
6
ORG field
=03 6 Ack field =0Fh
7
Length ORG field
=08 7 Length ack field =03
8
ORG ID
8 Error field =No
9
DBNR
9 Empty field =FFh
A
Start address
High Byte A Length empty field =07
B Low Byte B
C
Length
High Byte C
D Low Byte D free
E
Empty field
=FFh. E
F
Length empty field
=02 F
Data up to 64 K but
only if Error no. =0
- Audience 6
- Scope of this Manual 6
- Symbols used in this Manual 6
- Conventions 9
- Contents 10
- Stations 13
- 1.1 Industrial Ethernet 14
- Configuration and Diagnostics 18
- Industrial Ethernet 22
- Configuring S7 Connections 25
- Interface 27
- IP (Internet Protocol) 28
- SEND/RECEIVE interface 28
- Connection Types 30
- SIMATIC S5 30
- Configuring 31
- Networking in a Multiproject 31
- Variants 32
- Configuration of the System 33
- (Sub)Project 36
- Projects 39
- (TCP/IP) 41
- Ethernet Option 44
- 2.2 Procedure 45
- Procedure 46
- Subnet Attachment 49
- Graphic Overview in NetPro 52
- Overview in Table Form 53
- Options Tab 55
- S Assigning an IP address 56
- S Ethernet Profile for 56
- S Resetting module memory 56
- S Send Keepalives for 57
- S Multiplex OP Connections / 58
- Diagnostics Tab 59
- Addressing Tab 59
- Setting Up Connections 63
- Latest CPs) 64
- Requirements 65
- Alternative Procedure 67
- Principle 69
- Type of Interface 69
- Functions (FCs) 74
- Amounts of Data 74
- Purpose of the FCs 75
- Programming Connections 75
- 3.4 Additional Information 80
- Known Problems 81
- 4.1 Procedure 84
- 4.3 Connections 87
- Tasks of the Ethernet CP 88
- New Connection 90
- Unspecified Connections 94
- 4.3.3 Further Functions 96
- Display (Example) 98
- General Tab 100
- C79000-G8976-C129–06 101
- Address Parameters 102
- Addresses Tab 103
- TSAP Format 103
- Local and Remote TSAPs 103
- Default TSAPs 104
- Dynamics Tab 105
- Attributes AccessDescription 106
- Modifiable 106
- Display only 106
- Figure 4-11 107
- System Memory 108
- Links to Other Systems 108
- Overview Tab 109
- Introduction 110
- Opening the Dialog 110
- Address parameter 113
- Figure 4-16 116
- Figure 4-20 124
- Figure 4-21 125
- Application 134
- Figure 4-27 137
- 4.7.5 Free UDP Connection 139
- Routing to Distribute Load 140
- S7 Ethernet CPs 141
- Block Library 142
- Evaluating Status Codes 147
- Overview 148
- Working with the Job Header 151
- Meaning of the Block 152
- How the Block Works 153
- S Note the block type: 156
- S Note on the S7-400: 156
- Condition Codes 156
- DONE MeaningSTATUSERROR 158
- Example of AG_SEND 159
- NDR MeaningSTATUSERROR 166
- Caution when Configuring 167
- 5.4.1 FC7 AG_LOCK 169
- 5.4.2 FC8 AG_UNLOCK 171
- NCM S7 Diagnostics 175
- 6.1 Overview 176
- Functions 177
- Mode-Dependent Functions 177
- Installation 178
- Structure 179
- Operation 179
- 6.2.2 General Menu Commands 180
- S Dialog update time 181
- S Show TSAP in ASCII 181
- Ethernet CP 182
- Internetworking 183
- Other Startup Options 184
- 6.4 How to Use Diagnostics 185
- Firmware Loader 191
- 7.1 Application 192
- 7.2 Loading Firmware 193
- 2nd Step 194
- 3rd Step 194
- References 197
- Order Numbers 200
- Glossary 201
- B.1 General Section 202
- B.2 Industrial Ethernet 206
- B.3 PROFInet 208
- Linking to Other Systems with 211
- FETCH/WRITE 211
- “Parameter Values“ 212
- Parameter Values 214
- PI/PQ C T 215
- Document History 217
- A&D Technical Support 221
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