Configuring Hardware and Communication Connections STEP 7.pdf

Contents
12 Configuring Connections............................................................................................ 12-1
12.1 Introduction to Configuring Connections ................................................... 12-1
12.2 Configuring Communication with an Ethernet CP..................................... 12-2
12.3 Configuring Communication with a PROFIBUS CP .................................. 12-3
12.4 What You Should Know About the Different Connection Types ............... 12-4
12.5 What You Should Know About Assigning Connection Resources............ 12-8
12.6 Using Connection Resources with Fault-Tolerant S7 Connections ........ 12-13
12.7 Blocks for Different Connection Types .................................................... 12-18
12.8 Working with the Connection Table......................................................... 12-20
12.9 Inconsistent Connections ........................................................................ 12-22
12.10 Displaying the Connection Status ........................................................... 12-23
12.11 Access to Connection IDs during Programming...................................... 12-25
12.12 Configuring Connections to Partners in the Same Project...................... 12-26
12.12.1 Connection Types for Connection Partners in the Same Project............ 12-26
12.12.2 Rules for Creating Connections............................................................... 12-28
12.12.3 Configuring Connections for Modules in a SIMATIC Station .................. 12-28
12.12.3.1 Inserting a New Connection .................................................................... 12-29
12.12.3.2 Changing the Connection Partner ........................................................... 12-30
12.12.3.3 Reserving a Connection .......................................................................... 12-31
12.12.3.4 Deleting One or More Connections ......................................................... 12-32
12.12.3.5 Copying Connections .............................................................................. 12-32
12.12.4 Configuring Connections for a SIMATIC PC Station............................... 12-33
12.12.4.1 Configuring Routed S7 Connections for a SIMATIC PC Station............. 12-34
12.12.5 Programming Devices / PCs as Connection Partners ............................ 12-36
12.12.5.1 S7 Connection to a PG/PC...................................................................... 12-36
12.12.5.2 S7 Connection to a PG/PC with WinCC.................................................. 12-37
12.13 Configuring Connections to Partners in Other Projects .......................... 12-38
12.13.1 Connection Types for Partners in Other Projects.................................... 12-38
12.13.2 Basic Procedure for Configuring Connections between Projects............ 12-40
12.13.3 Creating a New Connection to an Unspecified Partner........................... 12-41
12.13.4 Creating a Connection to an 'Other Station', a 'PG/PC',
or a 'SIMATIC S5 Station'........................................................................ 12-43
12.14 Saving Connections................................................................................. 12-43
13 Configuring Global Data Communication ................................................................. 13-1
13.1 Overview: Global Data Communication .................................................... 13-1
13.2 Determining the Communication Capabilities from the GD Resources .... 13-3
13.2.1 Required Number of GD Packets.............................................................. 13-4
13.2.2 Required Number of GD Circles................................................................ 13-5
13.2.3 Exceptions for Calculating the GD Circles Required................................. 13-8
13.3 Conditions for Sending and Receiving ...................................................... 13-9
13.3.1 Relationship between the Scan Rate and Scan Cycle Time................... 13-10
13.4 Response Time ....................................................................................... 13-11
13.5 How to Configure and Save Global Data Communication ...................... 13-12
13.5.1 Procedure for Configuring Global Data Communication ......................... 13-12
13.5.2 Opening the GD Table............................................................................. 13-13
13.5.3 Tips for Working with GD Tables............................................................. 13-14
13.5.4 Filling Out the GD Table .......................................................................... 13-15
13.5.5 Saving and Compiling the GD Table for the First Time........................... 13-17
13.5.6 Entering Scan Rates................................................................................ 13-18
13.5.7 Entering Status Rows .............................................................................. 13-19
13.5.8 Compiling the GD Table for a Second Time............................................ 13-20
13.6 Global Data Transmission Using System Functions ............................... 13-21
Configuring Hardware and Communication Connections with STEP 7
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