GET452_E(2).PDF

SIMATIC

FM 452

Getting Started

Edition 09/99

Commissioning Primer

Based on a concrete example, this primer guides you through five steps in which you install and start

up a functioning application with which you can create several distance cams on a rotary axis and

then try out and test the basic hardware and software functions of your FM 452. The references to the

manual will also help you to get a general overview of the information it contains.

Depending on your degree of experience, working through the sample will take between one and two

hours.

Requirements

The following requirements must be met:

You have installed STEP 7 (

V5.0) correctly on your programming device.

You have created a project for the S7-400 station.

The programming device is connected to the CPU.

You have an FM 452 module, the configuration package for the FM 452, an external

24 V DC power supply, and the necessary accessories such as the front connector and wiring.

Install the Configuration Package on the PG

The configuration package contains a parameter assignment tool for FM 452, the required functions

(FCs) and data structures (UDTs), and a sample program.

Insert the CD in your CD drive.

Start the software installation dialog in Windows by double-clicking the “Add/Remove Programs” icon

in the “Control Panel”.

Click the Install... button , select the Setup.exe file in the FMx52\Disk1 folder on the CD and follow the

instructions displayed by the installation program.

Install and Wire up the FM 452

Turn off the power supply and change the mode

selector on the CPU to STOP.

Rack

FM 452 front

connector

Hook the top of the FM 452 onto the rail in the

selected slot, swing it down and secure it with screws

(for more detailed information, refer to Chapter 3 of

the manual).

Refe-

rence

point

24 V DC

external

power sup-

ply

Wire up the front connector as shown in the picture

on the right (the full pinout of the front connector is

described in Chapter 4 of the manual).

Plug in the front connector on the FM 452 and secure

it with screws.

L+

Test: Turn on the power supply module and the external 24 V DC power supply.

The red EXTF LED on the FM 452 is lights up briefly and goes off again. The INTF LED

remains lit since you have not yet entered the FM 452 in the hardware configuration.

Set the Parameters for the FM 452

Open your project in the SIMATIC Manager.

Open the hardware object. The HW Config window is opened and displays the configuration table.

Select the FM 452 with the correct order number (MLFB) from the hardware catalog and drag it to the

slot you want to use.

If you double-click on this FM 452, you open the “Cam Controller – [FM 452 CAM (slot) (Setting

Parameters) -- project name\station name]” window of the parameter assignment user interface.

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You have an S7-400 station consisting of a power supply and a CPU.

Select the following settings in the parameter assignment dialogs (leave all other settings unchanged):

Axis

Rotary axis

End of the rotary axis:

360.0000 degrees

Simulation speed:

360.0000 degrees/min

Encoders

Monitoring

Deactivate wire break and missing pulses

Cam s:

No. Valid Track Type

Start

[deg]

End

[deg]

Time

[ms]

Lead time

[ms]

Activation

direction

Hardware

interrupt

Dist

0.0000

90.0000

0.0

Both

None

Dist

180.0000 270.0000

0.0

Both

None

Dist

0.0000

90.0000

2000.0

Both

None

Dist

180.0000 270.0000

2000.0

Both

None

Dist

130.0000 330.0000

0.0

Both

None

Dist

130.0000 330.0000

2000.0

Both

None

Save the settings in the parameter assignment user interface with File

Save and close the user

Exit .

Save your configuration in your project with Station

Save and Compile .

Transfer the configuration with the CPU in the STOP mode using PLC

Download. .. .

The data are then transferred directly to the CPU and the FM 452. The INTF LED on the FM 452 goes

off. From now on, as long as the configuration on the CPU remains battery backed, the data will

always be transferred from the CPU to the FM 452 whenever the CPU changes from STOP to RUN.

Commission , open the commissioning dialog

“Cam Controler - [FM 452 CAM (slot) Commision -- project name\station name]”.

In “Enable track signals”, select the track signals 0 to 3 and enable them by clicking the Apply button.

In “Other test functions”, select the “Function switch” and then the setting “Set reference point”, enter

0.000 degrees as the reference point, and click the Apply button. This synchronizes the axis; the

“Synchronized” box in the commissioning dialog is displayed in green.

In “Other test functions”, select the “Simulation on” option and click the Apply button.

Click the On button below “Enable test”.

Click the On button below “Cam controller”. As a reaction to this, the “Cam processing active” box and

the track signals 0 and 1 are displayed in green, since in this example, the cam start was set to 0 for

tracks 0 and 1.

Click the Dir_P button below “Simulation direction”.

The encoder signals are now simulated. You can monitor the actual value and the track signals

(green = at least one cam active; gray = no cam active). You can also follow the track signals at the

LEDs of outputs Q0 to Q3 of the FM 452.

Libraries .

Copy FC 0, FC 1 and UDT 1 from the Blocks folder of the FMx52LIB library to the “Blocks” folder of

your project.

Select the menu command Insert

Open...

Data Block and insert DB 1 in the “Blocks” folder of

your project and then select the menu command Insert

S7 Block

Organization Block and insert

OB100 .

Open DB 1 and create it with the assigned user–defined data type UDT 1. This creates the

channel DB.

Save DB 1 with File

Save and close the DB editor with File

Exi t .

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System of units: degrees (4 decimal places)

interface with File

Testing the FM 452

Start the parameter assignment user interface again by double-clicking the FM 452 in HW Config.

With Test

Linking into your User Program

Open the FMx52LIB library in the SIMATIC Manager with File

Properties.. . in the parameter

assignment user interface of the FM 452. Click the Mod Addr. .. button, select DB 1 and confirm with

OK .

Now open OB 1 and OB 100 in your project. Call FC1 in OB1 and FC0 in OB100 and supply the FCs

with parameters (see manual, Section 6.2 or 6.3):

OB1:

CALL FC1

DB_NO := 1

RET_VAL := FW0

OB100:

CALL FC0

DB_NO := 1

Save .

Select the blocks FC0, FC1, DB1, OB1 and OB100 in your project.

Download the your program to the CPU with PLC

Download .

Test: Using the “Monitor and Modify Variables” function, you can now, for example, monitor the cam

data, the cam tracks, and the actual value:

Create a symbol with the “CAM” for DB1.

Select the “Blocks” folder in your project. Using the menu command Insert

S7 Block

Variable Table , insert the variable table VAT and confirm with OK .

Open the variable table VAT1 and make the following entries in the “Symbol”, “Monitor Format”

and “Modify Value” columns:

Address

Symbol

Monitor

Format

Monitor

Value

Modify

Value

Meaning

DB1.DBW 16 CAM.TRACK_EN

HEX

FFFF

Enable track signals

DB1.DBD 98

CAM.REFPT

DEC

Reference point coordinate

DB1.DBX 36.3 CAM.REFPT_EN

BIN

Set reference point

DB1.DBX 15.4 CAM.CAM_EN

BIN

Cam controller on

DB1.DBX 34.1 CAM.SIM_ON

BIN

Simulation on

DB1.DBX 15.3 CAM.DIR_P

BIN

Simulation direction positive

DB1.DBD 26

CAM.ACT_POS

DEC

Current actual value

DB1.DBD 30

CAM.TRACK_OUT

BIN

Track signals

Save the variable table VAT1 with Table

Save .

Go online with PLC

Connect To

Configured CPU .

Switch to monitoring with Variable

Monitor.

Activate Modify Values , you make the modify values valid.

In the “Monitor Value” column, you can now observe the current actual value ( ACT_POS) and

the track signals ( TRACK_OUT ).

Diagnostics

Errors can occur due to incorrect operator input, incorrect wiring, or conflicting parameter settings.

How to deal with such errors and messages is described in Chapter 11 of the manual.

Example

The project zEn19_01_FMx52_Prog contains further samples that can you can use for further

practice or that you can adapt for your own particular application.

Siemens AG

Bereich Automatisierungs und Antriebstechnik

Geschäftsgebiet IndustrieAutomatisierungssysteme

Postfach 4848, D90327 Nürnberg

Siemens AG 1999

Subject to change

Siemens Aktiengesellschaft

C79000Z7076C457

Printed in the Fed. Rep. of Germany

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Now enter the module address in DB 1 as follows: Select File

Save both OB1 and OB100 with File

Change the CPU to RUN-P.

With Variable

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