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Programming FCs (Functions) and FBs for S7 Ethernet CPs
163
SIMATIC NET NCM S7 for Industrial Ethernet
C79000-G8976-C129–06
How the Block Works
The following diagram illustrates the normal sequence of data acceptance
triggered by an AG_RECV in the user program.
Each AG_RECV job in the user program is acknowledged by the Ethernet CP with
an entry in the output parameters NDR, ERROR and STATUS.
Accept / evaluate
received data “A”
User program
(CPU cycle)
Ethernet CP Communications Partner
1, 0, 0000
1)
0, 1, 8180
1)
AG_RECV
AG_RECV
AG_RECV
0, 0, 8180
1)
1, 0, 0000
1)
AG_RECV
AG_RECV
Transfer
“A”
active on
Ethernet
Transfer
“B”
active on
Ethernet
Transfer
“C”
active on
Ethernet
Legend:
1) Parameter transfer NDR, ERROR, STATUS
Time Time Time
Accept / evaluate
received data “B”
.
.
.
The status code is updated at each block call.
- 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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