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Supplement to the STEP 7 User Manual V4.0
New Functions in Version 4.02
C79000-Z7076-C552-01
Contents Page
1 Overview 2
2 Creating and Editing Projects 3
3 Configuring Hardware 4
4 Configuring Networks and Connections 10
5 Using Upper and Lower Case for Shared
and Local Symbols 11
6 Creating User Programs 14
7 Displaying Reference Data 15
8 Creating and Displaying Messages 15
9 Debugging User Programs 16
10 Diagnosing Hardware 18
11 Archiving 18
12 Printing 19
Copyright 1998 by Siemens AG
C7900
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New Functions in Version V4.02 1 Overview New and Modified Functions in STEP 7 Version 4.02 The information in this supplement will familiarize you with the additional functions of STEP 7, version 4.02 in a short and concise manner. You should already be familiar with version 4.01 of the STEP 7 software and the manual package “STEP 7 Basic Information V4.0” (Order Number 6ES7 810-4CA03-8BA0) supplied with it. This supplement is structured in a similar way to the STEP 7 User Manual. First, you wi
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New Functions in Version V4.02 2 Creating and Editing Projects New Function: Password Protection for Access to Programmable Controllers With the aid of password protection you can: Protect the user program and its data in the CPU against unwanted changes (write protection), Protect the know-how in your user program (read protection), Inhibit online functions which would interfere with the process. You can only assign a password to a module if the module supports this function. If you want
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New Functions in Version V4.02 3 Configuring Hardware New CPU Parameters There are many new components in version 4.02; for example, racks, C7 control systems, or CPUs in the hardware catalog. It is not possible to list all the updates or changes within the scope of this supplement; instead, only the new CPU parameters (which are relevant to the operation of the latest CPUs) are covered: CPU Parameter Remarks Test operation/ Can be set in the “Protection” tab. process operation In process operat
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New Functions in Version V4.02 Improved Display and Print Functions The changes to the display and print functions are listed below in detail, with a brief description of how each function can be used. Function Comment Object names, for example, the Menu command Options Customize; description of a CPU can be Option “Save Object Names in the stored in the programmable Programmable Logic Controller.” controller. These object names are displayed when the configuration is uploaded to the programm
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New Functions in Version V4.02 Configuring the ET 200X (BM 147/CPU) as a DP Slave The BM 147/CPU basic submodule is configured as an intelligent DP slave. In contrast to other intelligent DP slaves, the basic submodule can be found under “PROFIBUS DP/ET 200X/BM 147/CPU” in the “Hardware Catalog” window. Requirement: The application “Configuring Hardware” must be running. Proceed as follows: 1. Configure the DP slave ET 200X (with BM 147/CPU) as an S7-300 station. – Create a new station of the
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New Functions in Version V4.02 Configuring the DP/PA Link The DP/PA link is a DP slave which for its part (acting as a kind of “master”) “opens” a PROFIBUS PA for connecting PROFIBUS PA devices. The PROFIBUS PA must be running at a transmission rate of 45.45 Kbps when you connect PA devices. To configure a DP/PA link, proceed as follows: 1. Install the optional package SIPROM; this will enable you to configure the PA slaves from the “Hardware Catalog” window at a later stage. (The PA slaves are
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New Functions in Version V4.02 Configuring Software Redundancy The configuration of a “warm standby” system consists of: Two S7 stations with one PROFIBUS-DP master interface each (each of these interfaces forms its own subnet). One or more ET 200M devices with IM 153-3 which are connected to both subnets. This configuration ensures that the “standby station” takes over the processing of the user program if one station (one of the two DP masters fails) fails. Two stations, each with one PROF
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New Functions in Version V4.02 Creating a Catalog Profile If the hardware catalog supplied with STEP 7 is too large or too difficult for you to use, you can create your “own” catalog. In this way different catalog profiles are produced. The basis for each new catalog profile is the modules/components catalog with which you are already familiar. The profile of this catalog is known as “standard;” you are free to assign names of your own choice to the catalog profiles you create. To create a new c
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New Functions in Version V4.02 4 Configuring Networks and Connections Configuring Connections while Configuring a Network The application for configuring networks can also be used to configure connections. To configure a connection, simply select a module to which connection data can be downloaded, for example, a CPU. The connection table for the selected module will appear in the lower section of the network view. Improved Display and Print Functions The changes to the display and print functio
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New Functions in Version V4.02 Connecting an S7-200 to the Multipoint Interface If you wish to connect an S7-200 to the MPI subnet (in addition to programming devices, operating panels, or S7-300/400s), you must select a transmission rate of 19.2 Kbps in the properties dialog box for the MPI subnet. The following restrictions apply: A maximum of 8 nodes are permitted (CPUs, programming devices/operator panels, communications processors/ function modules with separate MPI addresses (each node m
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New Functions in Version V4.02 Effects on Existing Programs If you have been using this criterion to distinguish between different symbols, you may experience difficulties with the new definition if: Symbols differ from one another only in their use of upper and lower case characters Parameters differ from one another only in their use of upper and lower case characters Symbols differ from parameters only in their use of upper and lower case characters All three of these conflicts can, how
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New Functions in Version V4.02 Parameters which Differ from One Another Only in their Use of Upper and Lower Case Characters Conflict: Source files containing such interfaces can no longer be compiled without errors. Blocks with such interfaces can be opened, but access to the second of these parameters is no longer possible. When you try to access the second parameter, the program automatically returns to the first parameter when the block is saved. Remedy: To check which blocks contain such co
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New Functions in Version V4.02 6 Creating User Programs Operation New menu command Edit Select All: The effect depends on the context in which the command is used (see online help). Selected networks can be cut, deleted, and copied, as well as inserted into blocks of the same language. Blocks in the catalog of program elements can be opened with the right-hand mouse button. If you select a connection in an FBD box or a parameter line in STL and then press F1, a help message on the expected da
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New Functions in Version V4.02 7 Displaying Reference Data New Menu Command: Filter and Display You can use this menu command to call up the reference data and to set the filters before the reference data are displayed. If a program is very large, you can use filters to limit the quantity of data to be displayed. This enables you to obtain the information you require more quickly. 8 Creating and Displaying Messages Assigning Value Ranges for Message Numbers Messages are identified by a number wh
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New Functions in Version V4.02 9 Debugging User Programs Programming LAD/STL/FBD S7 Blocks: Test Environment for Debugging in Program Status The execution of test functions is dependent on the mode of operation set (process operation or test operation). The mode determines whether test functions are permitted and determines the increase in the scan cycle time caused by test functions. “Process operation”: test functions restricted (see Chapter 3, new CPU parameters). “Test operation”: all te
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New Functions in Version V4.02 New Functions: Forcing with S7-300 Modules The following table provides an overview of the functions and summarizes the differences between forcing and modifying. Feature / Function Force Modify with S7-400 with S7-300 Bit memory (M) yes no yes Timers and counters (T, C) no no yes Data blocks (DB) no no yes Peripheral inputs (PIB, PIW, PID) yes no no Peripheral outputs (PQB, PQW, PQD) yes yes * yes Inputs and outputs (I, Q) yes yes * yes Defining triggers always tr
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New Functions in Version V4.02 10 Diagnosing Hardware New Function: Diagnosing Hardware – Quick View In the SIMATIC Manager you can specify which of the following options should be displayed when you call up diagnosing hardware: Short information (“Diagnosing Hardware - Quick View” dialog box) or Detailed information (“HW Config - Diagnosing Hardware” dialog box) In the second case, it takes STEP 7 longer to trace and display the data. 1. Select the menu command Options Customize in the S
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New Functions in Version V4.02 12 Printing Improved Print Functions in the SIMATIC Manager You can use the menu command File Print Object List to print a list of the selected objects on the default printer. The list contains the object information which is displayed in the “Details” view of the SIMATIC Manager. You can use the menu command File Print Messages to print messages belonging to individual objects. You can use the filters in the dialog box to select which types of messages
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New Functions in Version V4.02 Supplement to the STEP 7 User Manual V4.0 C79000-Z7076-C552-01 20
