Siemens Simatic S7-300 Bedienungsanleitung

Getting Started Edition 04/2000

SIMATIC

S7-300 Programmable Controller

FirstStepsforInstallationandCommissioning

TotallyIntegrated

Automation

2S7-300 Programmable Controller, Getting Started, First Steps for Installation and Commissioning

A5E00069340 01 // 04/2000

Introduction

This guide takes you through 6 commissioning steps to set up a functioning application by

running through a concrete example. In this way you will get to know the basic hardware and

software functions of your S7-300.

You should expect to spend approximately 1.5 to 2 hours on this example, depending on the

level of your experience.

Prerequisites

The following prerequisites must be fulfilled:

You must be familiar with the fundamentals of electronic/electrical engineering and have

experience of working with computers and MicrosoftWindows95/98/NT.

The reference potential must be grounded. That means that the bridge between chassis

ground and functional ground must be installed (which is how the CPU is shipped).

!Warning

The S7-300 is used as a component in installations and systems that require you to comply with

specific rules and regulations that vary depending on the application. Please note the relevant

safety and accident-prevention regulations, such as IEC 204 (emergency stop systems).

Non-compliance with these regulations can result in serious injury and damage to both machinery

and equipment.

Materials and Tools Required

Quantity Item Order Number (SIEMENS)

1 Rail e.g.: 6ES7 390-1AE80-0AA0

1PS 307 power supply (PS) with power connector (VK) e.g.: 6ES7 307-1EA00-0AA0

1CPU 314 e.g.: 6ES7 314-1AE04-0AB0

1Buffer battery 6ES7 971-1AA00-0AB0

1Digital input module (DI) with bus connector e.g.: 6ES7 321-1BH01-0AA0

1Digital output module (DO) with bus connector e.g.: 6ES7 322-1BH01-0AA0

220-pin front connector with screw-type contacts 6ES7 392-1AJ00-0AA0

1Programming device (PG) with MPI interface and installed STEP 7 ver-

sion 5.0 and PG cable Depends on configuration

X m PROFIBUS-DP cable with bus connectors Depends on type

Various M6 screws and nuts (length depends on installation location) with appro-

priate screwdriver/wrench Standard

1Screwdriver with 3.5 mm blade Standard

1Screwdriver with 4.5 mm blade Standard

1Diagonal cutter and tool for insulation stripping Standard

1Tool for pressing on wire-end ferrules Standard

X m Cable for grounding the rail with 10 mm2cross-section with cable lug for

M6, length dependent on local requirements Standard

Approx.

2 m Stranded wire with 1 mm2cross-section with appropriate wire-end ferru-

les (type A, length 6 mm) Standard

X m 3-core power cable (AC 230/120 V) with shock-proof plug; length depen-

dent on local requirements; correct wire-end Standard

21-pin on switch (24 V) Standard

S7-300 Programmable Controller, Getting Started, First Steps for Installation and Commissioning

A5E00069340 01 // 04/2000

Layout of the example

Power supply

ON/OFF Switch for setting

system voltage Mode selector switch Programming

device with

STEP 7 software

Rail

Clamp for

strain relief Power connector Switches Programming device

cable

E0.1

E0.2

A4.0

Overview of the layout of the example (without the wiring of the power supply to the SM)

Functionality of the Example

Output A4.0 can only be switched (i.e. the A4.0 diode lights up on the DO), if switches E0.1

and E0.2 are pressed.

Step 1: Installation

Installation sequence: from left to right: PS – CPU – DI – DO.

A bus connector (BV) is shipped with each DI and DO. You can get an idea of the overall con-

figuration in the overview figure.

Figure Installing and Grounding the Rail

1. Put the rail in position and fasten (screw size: M6) so that

there is at least 40 mm above and below the rail.

If you fasten the rail to a grounded metal plate or a grounded

device support, make sure there is a low-resistance connec-

tion between the rail and the base.

2. Connect the rail to the protective conductor. There is an M6

protective conductor screw on the rail for this purpose.

Minimum cross-section of the cable to the protective conduc-

tor: 10 mm2.

4S7-300 Programmable Controller, Getting Started, First Steps for Installation and Commissioning

A5E00069340 01 // 04/2000

Figure Installing the Modules on the Rail

1. Remove the bus connector from the ”last”

module (=DO) and insert it in the CPU. Do

not insert a bus connector on the DO during

installation.

2. Attach the PS, push it up to the grounding

screw of the rail and tighten it.

3. Attach the CPU (1), push it up to the module

on the left (2) and tip it downward (3).

0.8 to 1.1 Nm

4. Screw the module on tightly.

5. Insert the second bus connector on the DI.

6. Repeat steps 3 and 4 for the remaining mo-

dules.

Step 2: Wiring

!Warning

You can come into contact with live wires if the PS 307 is switched on or the PS network ca-

ble is connected to the power.

Only wire the S7-300 in a deenergized state!

Stage Wiring the Power Supply and the CPU

1Open the front doors of the PS and the CPU.

2Loosen the clamp for the PS strain relief (see the figure on page 3).

3Strip the power cable, attach wire-end ferrules, if necessary (for multi-wire cables), and attach to the PS.

4Tighten the clamp for the strain relief.

5Insert the power connector in the PS and CPU (see the figure on page 3) and tighten.

6Check that the line voltage selector switch is set to your line voltage.

The CPU is set in the factory to a line voltage of AC 230 V. To change the voltage, proceed as follows:

Remove the protective cap with a screwdriver, set the switch to the line voltage required and replace the

protective cap.

S7-300 Programmable Controller, Getting Started, First Steps for Installation and Commissioning

A5E00069340 01 // 04/2000

Stage Wiring the Front Connectors of the DI and DO

1Open the front doors of the DI and DO.

2Position the front connectors so that you can wire them:

To do this, push a front connector into both the DI and the DO until it snaps into position. The front con-

nector still sticks out of the module in this position. A wired front connector has no contact with the module

in the wiring position.

3Strip 6 mm from the wire ends you want to insert in the front connector and attach appropriate wire-end

ferrules.

4Wire the front connector of the DI as follows:

Terminal 1: L+ of the PS; terminal 13: switch 1; terminal 14: switch 2; terminal 20: M of the PS.

5Wire the front connector of the DO as follows:

Terminals 1 and 11: L+ of the PS; terminal 20: M of the PS.

6Wire the free wire ends of the switches to L+ of the PS.

7Lead the wires downward out of the front connectors.

8Press the release button of the front connector on the upper part of the module and at the same time push

the front connector into the module until the release button jumps back into its original position.

9Close the front doors of the DI, DO and PS.

Step 3: Commissioning the Hardware

Stage What to Do Result

1Connect the programming device to the CPU with the programming device cable. Make sure that the ter-

minating resistors are inserted in the connectors. Close the front door of the CPU and put the mode selec-

tor switch to

STOP

2Connect the power cable to the network and switch on

the PS 307 power supply module. The

DC24V

LED lights up on the PS.

All the LEDs on the CPU come on briefly; the

LED, the

BATF

LED and the

DC5V

LED remain

on. The

STOP

LED flashes rapidly for 3 sec. and

then remains on.

3Insert the buffer battery:

– Insert the buffer battery connector into the cor-

responding socket in the battery compartment

of the CPU. The groove on the connector must

be facing left.

– Insert the buffer battery in the battery compart-

ment of the CPU.

– Close the front door of the CPU.

The

BATF

LED goes off followed shortly after-

wards by the

LED.

4Raise the programming device and start SIMATIC Ma-

nager on the Windows desktop. A SIMATIC Manager window appears.

5Carry out a memory reset in the CPU as follows:

– Turn the mode selector switch to

MRES

. Keep the mode selector switch in this position until the

STOP

LED comes on for the second time and stays on (this takes 3 sec.).

– Within 3 sec. you must turn the mode selector switch back to

MRES

. The

STOP

LED starts to flash

rapidly and the CPU carries out a memory reset. When the

STOP

LED comes on permanently

again, the CPU has completed the memory reset.

6Activate switch 1. The E0.1 LED on the DI comes on. No LEDs

light up on the DO.

7Activate switch 2. Die E0.2 LED on the DI comes on. No LEDs light

up on the DO.

6S7-300 Programmable Controller, Getting Started, First Steps for Installation and Commissioning

A5E00069340 01 // 04/2000

Step 4: Commissioning the Hardware

Stage What to Do Result

1Follow the STEP 7 new project assistant on the pro-

gramming device and create a new project with the

following data:

CPU type:

CPU 314

Block to be created:

OB1

Project name:

S7_Pro1

A two-part window with the title

S7_Pro1 --...

ap-

pears.

2Double-click the

OB1

icon in the right-hand part of the

window. The editor for the OB1 block opens.

3From the

View

menu, choose the

LAD

command to

switch to the LAD programming language. In the lower-left part of the window, a rung cur-

rent path is displayed in the network.

4Click exactly on the horizontal line of the rung current

path. The line is highlighted.

5Double-click the –||– button (normally open contact) on

the toolbar and then click the –( ) button once (coil). The icons are inserted in the rung current path.

6Click the red question mark of the normally open con-

tact on the left in the rung current path. The normally open contact is highlighted, and a

text box with a cursor appears at the point of the

question mark.

7 Enter

E0.1

and press

Return

.The normally open contact on the left is assigned

the designation

E0.1

8Label the right button in the same way with

E0.2

and the coil with

A4.0

9Close the editor and confirm that you want to save with

Yes

.The editor closes, and the OB1 is saved.

S7-300 Programmable Controller, Getting Started, First Steps for Installation and Commissioning

A5E00069340 01 // 04/2000

Step 5: Configuring the Hardware

Stage Procedure Result

1In SIMATIC Manager, click SIMATIC 300 Station in the

left-hand part of the window. The buttons

Hardware

and

CPU 314(1)

appear

in the right-hand part of the window.

2Double-click the

Hardware

button in the right-hand part

of the window. The hardware configuration editor opens.

3If a catalog is not displayed in the right-hand part of

the window, activate the catalog by choosing the

Catalog

command from the

View

menu.

Navigate to DI-300 via SIMATIC 300 and SM-300.

Insert the

SM 321DI16xDC24V

whose order num-

ber corresponds to the order number on your DI by

dragging and dropping it on slot 4 (the upper or

lower left-hand window).

Note:

You can find out the order number if you click a DI in

the catalog. The order number of this DI then appears

in the text box under the catalog.

4Navigate to

DO-300

.A list containing different DOs appears.

5Insert the

SM 322 DO16xDC24V/0.5A

whose order

number corresponds to the order number on your DO

by dragging and dropping it on slot 5.

The module appears on slot 5.

6Check that the order number displayed for slot 2 in the

lower left-hand part of the window corresponds to the

order number on your CPU.

If necessary, widen the order number column to dis-

play the whole order number.

If yes: Continue from stage 7.

If not: Navigate in the catalog via CPU 300 to

CPU 314 and replace the CPU on slot 2 with the

CPU with the correct order number from the ca-

talog by dragging and dropping it.

7From the

Station

menu, choose the

Save and Compile

command. The hardware configuration is compiled and sa-

ved.

8Close the editor. The editor is closed.

8S7-300 Programmable Controller, Getting Started, First Steps for Installation and Commissioning

A5E00069340 01 // 04/2000

Step 6: Test Run

Stage Procedure Result

1Navigate via SIMATIC 300 Station and CPU 314(1) to

S7 Program. In SIMATIC Manager, click Blocks in the

right-hand part of the window.

Blocks

is highlighted.

2From the

PLC

menu, choose the

Download

command

to transfer the program and the hardware configuration

to the CPU.

Click

Yes

in all the dialog boxes that appear.

The program and configuration are downloaded

from the programming device to the CPU.

3Switch the CPU mode selector to

RUN

. The

STOP

LED goes out. The

RUN

LED starts

flashing and then comes on continuously.

4Operate the two switches alternately. The LEDs of the inputs E0.1 and E0.2 light up

alternately.

The LED of output A4.0 does not light up.

5Operate the two switches simultaneously. The LEDs of inputs E0.1 and E0.2 light up toge-

ther.

The LED of output A4.0 comes on. This would

switch on a connected actuator or indicator.

Diagnosis/Debugging

Incorrect operation, incorrect wiring or incorrect hardware configuration can result in faults

that the CPU indicates after a memory reset with the group error LED

You can find out how to evaluate these errors and messages in the manuals:

Hardware and

Installation

; Section 8.3.2 and

Programming with STEP 7 V5.0

; Chapter 21.

Manuals for Further Information

We recommend that you also read

Getting Started First Steps with STEP 7 V5.0

You can download all the manuals free of charge from the Siemens home page (Products &

Solutions – Industrial Services – Support – SIMATIC – Customer Support).

Siemens AG

Bereich Automatisierungs- und Antriebstechnik

Geschäftsgebiet Industrie-Automatisierungssysteme

Postfach 4848, D-90327 Nürnberg

Siemens Aktiengesellschaft

Siemens AG 2000

Subject to change without prior notice

A5E00069340

Printed in the Federal Republic of Germany

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