Plc Siemens5

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Hardware Configuration and Memory Concept

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.1

Information and Training Center Knowledge for Automation

Memory Concept of the S7-300 Load memory: Blocks: • Logic blocks (OB,FC,FB) • Data blocks (DB) Additional info.

Comments

Blocks: • Logic blocks (OB,FC,FB) • Data blocks (DB) Additional info.

SIMATIC S7 Siemens AG 1999. All rights reserved.

FlashEPROM

Work memory: • OB,FC,FB

Symbols Blocks: • Logic blocks (OB,FC,FB) • Data blocks (DB)

RAM



DB n. reten.

reten.

System memory: • PII, PIQ • M, T, C

with Power ON without battery backup

n. reten.

reten.

Retentive memory:

With Power OFF without battery backup

• Retentive M, T, C • Retent. data blocks

Flash EPROM Memory Card in PG (subsequently inserted in CPU) Date: File:

04.09.2013 SYH_06E.2

Information and Training Center Knowledge for Automation

Memory Concept of the S7-400 Load memory: Blocks: • Logic blocks (OB,FC,FB) • Data blocks (DB) Additional info

Comments

Blocks: • Logic blocks (OB,FC,FB) • Data blocks (DB)

SIMATIC S7 Siemens AG 1999. All rights reserved.

FlashEPROM

Work memory: • OB,FC,FB

Symbols

Blocks: • Logic blocks (OB,FC,FB) • Data blocks (DB) Additional info.

RAM

• DB

System memory: • PII, PIQ • M, T, C

Backup via battery

Flash EPROM Memory Card in PG (subsequently inserted in CPU) Date: File:

04.09.2013 SYH_06E.3

Information and Training Center Knowledge for Automation

Loading Blocks into /out of Flash EPROM Memory Card

Load memory Flash EPROM

"Load in EPROM"

"Load"

Load memory internal RAM

"Load in PG" Sections relevant for execution

After inserting the memory card: memory reset request and copying in work memory

Work memory RAM

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.4

Information and Training Center Knowledge for Automation

Hardware Configuration and Parameter Assignment Configuration

Parameter-assignment

Assignment of racks, blocks and distributed I/O in the Station window of HW Config. You can select the components from a hardware catalog.

Establishing the characteristics of parameterassignable blocks, e.g: startup characteristics, retentive areas, etc.)

Preset configuration

Planned hardware configuration and parameter assignment.

Actual configuration

Actual configuration and parameter assignment of an existing hardware.

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.5

Information and Training Center Knowledge for Automation

Inserting a Station

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.6

Information and Training Center Knowledge for Automation

Starting HW Config

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.7

Information and Training Center Knowledge for Automation

Generating a Hardware Preset Configuration

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.8

Information and Training Center Knowledge for Automation

Module Address Overview

“Address Overview”

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.9

Information and Training Center Knowledge for Automation

CPU Properties

2x

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.10

Information and Training Center Knowledge for Automation

CPU Properties: General

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.11

Information and Training Center Knowledge for Automation

CPU Properties: Startup

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.12

Information and Training Center Knowledge for Automation

CPU Properties: Retentive

Only relevant if CPU has no backup battery

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.13

Information and Training Center Knowledge for Automation

CPU Properties: Cycle / Clock Memory

Clock memory bit Frequency (Hz) Period (s)

SIMATIC S7 Siemens AG 1999. All rights reserved.

7

6

0.5 0.62 2

1.6

5

4

3

2

1

0

1

1.25

2

2.5

5

10

1

0.8

0.5

0.4

0.2

0.1

Date: File:

04.09.2013 SYH_06E.14

Information and Training Center Knowledge for Automation

CPU Properties: Protection

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.15

Information and Training Center Knowledge for Automation

CPU Properties: Diagnostics / Clock

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.16

Information and Training Center Knowledge for Automation

Saving the HW Preset Configuration and Downloading it in Module

Download (only when CPU is in STOP mode)

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.17

Information and Training Center Knowledge for Automation

Uploading the HW Actual Configuration to the PG

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.18

Information and Training Center Knowledge for Automation

Displaying Hardware Diagnostics in the SIMATIC Manager

2x

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.19

Information and Training Center Knowledge for Automation

Possible Problems with Configuration

Situation

Result/Remedy

In S7-300, gaps in configuration

Configuration cannot be compiled

Incorrect CPU (e.g. CPU 315-2DP instead of CPU 314)

Configuration cannot be downloaded

Analog module in incorrect slot

CPU goes in Stop mode because of a parameter assignment error

Incorrect measuring range for analog module

Analog module signals group error because of incorrect parameter assignment

After a memory reset, different parameter assignment of modules

Reload configuration

Not possible to open HW Config.

Create HW station or "Upload Station"

Module parameters cannot be modified

Open the station offline

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.20

Information and Training Center Knowledge for Automation

Variable Addressing

2x

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.21

Information and Training Center Knowledge for Automation

Accessing the Symbol Table

Once with right

SIMATIC S7 Siemens AG 1999. All rights reserved.

Date: File:

04.09.2013 SYH_06E.22

Information and Training Center Knowledge for Automation

Exercise: Reading Out and Adapting the Actual Configuration

Step

What to Do

Result

1

Start the SIMATIC Manager

The tool is started

2

Open the project "My Project"

The project structure is displayed

3

Download the actual configuration with PLC -> Upload

A new HW station is created

4

Check whether the correct modules (order numbers) are entered

???

5

Enter the correct order numbers for the modules

The parameter blocks of the CPU are displayed

6 7

SIMATIC S7 Siemens AG 1999. All rights reserved.

Save the configuration as "My Station" and download the configuration If you have an S7-400 training unit, adapt the addresses (see text)

Date: File:

04.09.2013 SYH_06E.23

The addresses are the same as the S7-300 training unit, version B

Information and Training Center Knowledge for Automation

Exercise: Assign Parameters to Clock Memory and Test It

Step

What to Do

Result

1

In the CPU assign parameters to a clock memory MB 10

2

Save and download the configuration in the CPU

3

Check the function by programming an OB 1 with the statements L MB 10, T QB 9 (QB 5)

SIMATIC S7 Siemens AG 1999. All rights reserved.

MB 10 flashes

Date: File:

04.09.2013 SYH_06E.24

QB9 (QB5) on the simulator should flash

Information and Training Center Knowledge for Automation

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