Siemens SIMATIC NET CP 343-1 ERPC - Page 66

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Further notes on operation

8.9 Interface in the user program

CP 343-1 ERPC

66 Manual, 03/2010, C79000-G8976-C239-02

Main Page

Preface3
Table of Contents5
Properties / Services7
Application7
Communication Services8
Other Services9
Requirements for Use11
Operation in Controller Device Families11
Configuration12
Programming13
Installation and Commissioning15
Important Notes on Using the Device15
Procedure for Installation and Commissioning16
C-PLUG (Configuration Plug)19
Module Replacement21
Controlling the Operating Mode23
LED Displays25
Performance Data / Operation29
Transmission and Reaction Times29
Number of Possible Connections over Ethernet29
S7 Communication Characteristics30
Characteristics of the SEND/RECEIVE Interface30
Characteristics of the ERPC Functions32
Characteristics of the C-PLUG32
Memory Organization33
ERPC Functions37
Overview37
The ERPC Functions37
Procedure for Using the ERPC Functions38
ERPC Services and Communication39
Communication between S7 Station and ERP Subscriber39
System Overview40
Reading and Writing Data41
The Logical Trigger42
ERPC Communication between CP and CPU44
Configuration45
Overview of ERPC Configuration45
Basic Configuration in STEP 747
Configuration of the Symbol Table and the ERPC Symbols47
Configuration of FB5650
Downloading ERPC Configuration Data50
Diagnostics of the ERPC Functions51
The CP as Web Server53
Further Notes on Operation55
Clear/Reset and Reset55
Network Settings with Fast Ethernet / Gigabit Ethernet56
Fast Ethernet56
Gigabit Ethernet58
Influence of MPI on Connections Via Industrial Ethernet59
IP Configuration59
Configured S7 Connections Cannot be Operated if the IP Address Is Assigned over DHCP59
Detection of Double IP Addressing in the Network60
Obtain IP Address Vie DHCP: CP STOP on Expiry of the Lease60
Setting the CPU Time of Day by the CP60
Time-Of-Day Synchronization61
SNMP Agent62
Possible Security Holes: Prevent Unauthorized Access64
Interface in the User Program65
Programmed Communication Connections with FB55 IP_CONFIG65
IP Access Protection with Programmed Communication Connections65
Programmed Communications Connections - Assigning Parameters to the Port65
How to Load New Firmware67
Firmware Overview67
Downloading the ERPC Firmware67
Downloading Siemens Firmware68
Technical Specifications69
Other Information Available about the CP71
Approvals73
Training, Service & Support75
References77
Error Messages of the ERPC Application81
Glossary83
Index93

Siemens SIMATIC NET CP 343-1 ERPC - Page 66

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