Siemens CM 1243-5 Operating Instructions Manual

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CM 1243-5

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SIMATIC NET

CM 1243-5

Operating Instructions

04/2011

C79000-G8976-C246-01

Preface

Application and properties

Displays and connectors

Installing, connecting up and commissioning

Configuration and programming

Operating the module

Technical specifications

Dimension drawings

Approvals

References

Training, Service & Support

Legal information

Legal information Warning notice system

This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger.

DANGER

indicates that death or severe personal injury will result if proper precautions are not taken.

WARNING

indicates that death or severe personal injury may result if proper precautions are not taken.

CAUTION

with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.

CAUTION without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.

NOTICE indicates that an unintended result or situation can occur if the corresponding information is not taken into

account.

If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage.

Qualified Personnel

The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation for the specific task, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems.

Proper use of Siemens products

Note the following:

WARNING

Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be adhered to. The information in the relevant documentation must be observed.

Trademarks

All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.

Disclaimer of Liability

We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.

Siemens AG

Industry Sector Postfach 48 48 90026 NÜRNBERG GERMANY

order number: C79000-G8976-C246 Ⓟ 04/2011

CM 1243-5 Operating Instructions, 04/2011, C79000-G8976-C246-01

Preface

Validity of this manual

This document contains information on the following product:

CM 1243-5 Order number 6GK7 243-5DX30-0XE0 Hardware product version 1, firmware version V1.0

The device is the communications module for the PROFIBUS DP master function for the SIMATIC S7-1200.

Figure 1-1 CM 1243-5

At the top right behind the hinged cover of the module housing, you will see the hardware product version printed as a placeholder "X" (for example X 2 3 4). In this case, "X" would be the placeholder for hardware product version 1.

Product name

In this document, the term "CM" is also used instead of the full product name "CM 1243-5".

Purpose of the manual

This manual describes the properties of this module and supports you when installing and commissioning the device.

Preface

CM 1243-5

4 Operating Instructions, 04/2011, C79000-G8976-C246-01

The necessary configuration steps are described in the form of an overview.

You will also find instructions for operation and maintenance and information on the diagnostics options of the device.

Required experience

To install, commission and operate the CM, you require experience in the following areas:

● Automation engineering

● Setting up the SIMATIC S7-1200

● SIMATIC STEP 7

● Data transfer with PROFIBUS

Further information

You will find an overview of further reading and references in the Appendix of this manual.

You will also find information about training, Service & Support and who to contact in the Appendix of this manual.

License conditions

NOTICE

Open source software

Read the license conditions for open source software carefully before using the product. The acceptance of the disclaimers of liability and warranty it contains is a clear precondition of the use of open source software.

You will find the license conditions on the data medium with the product documentation.

CM 1243-5 Operating Instructions, 04/2011, C79000-G8976-C246-01

Table of contents

Preface ...................................................................................................................................................... 3

Application and properties ......................................................................................................................... 7

1.1

Connecting the S7-1200 to PROFIBUS.........................................................................................7

1.2

Communications services of the CM .............................................................................................7

1.3

Performance data ..........................................................................................................................8

1.4

Requirements for operation ...........................................................................................................9

1.5

Configuration examples for PROFIBUS ......................................................................................10

Displays and connectors.......................................................................................................................... 11

2.1

Opening the covers of the housing..............................................................................................11

2.2

LEDs ............................................................................................................................................12

2.3

Electrical connections ..................................................................................................................15

Installing, connecting up and commissioning........................................................................................... 17

3.1

Warning overvoltage protection ...................................................................................................19

3.2

Installing and commissioning the CM 1243-5..............................................................................19

3.3

Pin assignment of the socket for the external power supply .......................................................22

3.4

Pinout of the D-sub socket...........................................................................................................23

Configuration and programming .............................................................................................................. 25

4.1

Configuration................................................................................................................................25

4.2

Programming................................................................................................................................26

Operating the module .............................................................................................................................. 27

5.1

Note on operation ........................................................................................................................27

5.2

Diagnostics...................................................................................................................................27

5.3

Downloading firmware .................................................................................................................28

5.4

Module replacement ....................................................................................................................28

Technical specifications........................................................................................................................... 29

Dimension drawings ................................................................................................................................ 31

Approvals................................................................................................................................................. 33

References .............................................................................................................................................. 39

Training, Service & Support..................................................................................................................... 41

Glossary .................................................................................................................................................. 43

Index........................................................................................................................................................ 47

Table of contents

CM 1243-5

6 Operating Instructions, 04/2011, C79000-G8976-C246-01

CM 1243-5 Operating Instructions, 04/2011, C79000-G8976-C246-01

Application and properties

1.1 Connecting the S7-1200 to PROFIBUS

Connecting the S7-1200 to PROFIBUS DP

The S7-1200 can be connected to a PROFIBUS fieldbus system with the following communications modules:

● CM 1242-5

Operates as DP slave

● CM 1243-5

Operates as DP master class 1

If a CM 1242-5 and a CM 1243-5 are installed together, an S7-1200 can perform the following tasks simultaneously:

● Slave of a higher-level DP master system

and

● Master of a lower-level DP master system

1.2 Communications services of the CM

Bus protocol

The PROFIBUS CMs use the PROFIBUS DP-V1 protocol.

Possible DP slaves for the DP master CM 1243-5

With the DP master module CM 1243-5, the S7-1200 can communicate with the following DP-V0/V1 slaves:

● Distributed I/O SIMATIC ET200

● S7-1200 CPUs with CM 1242-5

● S7-200 CPUs with PROFIBUS DP module EM 277

● SINAMICS converter

● Drives and actuators from various vendors

● Sensors of various vendors

● S7-300/400 CPU with PROFIBUS interface

Application and properties

1.3 Performance data

CM 1243-5

8 Operating Instructions, 04/2011, C79000-G8976-C246-01

● S7-300/400 with PROFIBUS CP (for example CP 342-5)

● SIMATIC PC stations with PROFIBUS CP

Types of communication with the CM 1243-5 in DP-V1

The following types of communication are available with DP-V1:

● Cyclic communication

The CM supports cyclic communication for the transfer of process data between DP slave and DP master.

Cyclic communication is handled by the operating system of the CPU. No instructions or software blocks are required for this. The I/O data is read or written directly from/to the process image of the CPU.

● Acyclic communication

The CM also supports acyclic communication:

– The "RALRM" instruction is available for receiving interrupts of the DP slaves.

– The "RDREC" and "WRREC" instructions are available for transferring configuration,

diagnostics or I/O data.

The SYNC/FREEZE and Get_Master_Diag functions are not supported.

Other communications services of the CM 1243-5

The CM 1243-5 supports the following additional communications services:

● S7 communication

– PUT/GET services

The DP master functions as a client and server for queries from other S7 controllers or PCs via PROFIBUS.

– PG/OP communication

The PG functions allow the downloading of configuration data and user programs from a PG and the transfer of diagnostics data to a PG.

Possible communications partners for OP communication are HMI panels, SIMATIC panel PCs with WinCC flexible or SCADA systems that support S7 communication.

1.3 Performance data

Transmission speeds of the CM 1243-5

As the transmission speed on PROFIBUS, values of 9.6 kbps to 12 Mbps are permitted for the CM.

Application and properties

1.4 Requirements for operation

CM 1243-5 Operating Instructions, 04/2011, C79000-G8976-C246-01

Characteristic data of the DP interface of the CM 1243-5

● Number of DP slaves operable with a DP master: Maximum 16 *)

● Total number of operable slots: Maximum 256

Any distribution of the slots as I slots and Q slots is permitted.

● Size of the DP data areas of the DP master: Max. 1024 bytes

– Input area of the DP master in total: Max. 512 bytes

– Output area of the DP master in total: Max. 512 bytes

● Maximum size of the DP data areas of the DP slaves

– Input area per DP slave: Max. 244 bytes

– Output area per DP slave: Max. 244 bytes

– Diagnostics data area per DP slave: Max. 244 bytes

NOTICE

*) Maximum 16 DP slaves per station

For the constellation STEP 7 V11.0 and CPU firmware V2.0, resources are available for a maximum 16 DP slaves in total per station.

If you plug in a master module (CM 1243-5) and 1 or 2 slave modules (CM 1242-5) in a station at the same time, the maximum number of slaves that can be operated with the CM 1243-5 reduces by the CM 1242-5 modules plugged into the same station. The number of DP slaves that can be operated with the DP master is therefore reduced to 15 or 14.

Characteristic data of S7 communication

● Number of possible connections for S7 communication in total: 8

Of which maximum:

– Configured connections for PUT/GET services: 4

– PG connections: 1

– OP connections: 3

● User data per frame

– PUT: Max. 209 bytes

– GET: Max. 222 bytes

1.4 Requirements for operation

Configuration tool

To configure the module, the following configuration tool is required:

Application and properties

1.5 Configuration examples for PROFIBUS

CM 1243-5

10 Operating Instructions, 04/2011, C79000-G8976-C246-01

STEP 7 as of version V11.0

CPUs of the S7-1200

Use of PROFIBUS functionalities with the S7-1200 is only possible with CPUs as of firmware version 2.0.

1.5 Configuration examples for PROFIBUS

Below, you will find examples of configurations in which the CM 1242-5 is used as a DP slave and the CM 1243-5 is used as a DP master.

Operator control &

Operator control & monitoring

SIMATIC S7-1200

with CM 1242-5

SIMATIC S7-1200

with CM 1242-5

PROFIBUS

PROFINET/ Industrial Ethernet

PROFIBUS (LWL)

SIMATIC S7-300

PG/PC/IPC

OLMOLM

Figure 1-1 Configuration example with a CM 1242-5 as PROFIBUS slave

Operator control & monitoring

SIMATIC S7-1200 with CM 1243-5

PROFIBUS

PG/PC/IPC SINAMICS ET 200S

Figure 1-2 Configuration example with a CM 1243-5 as PROFIBUS master

CM 1243-5 Operating Instructions, 04/2011, C79000-G8976-C246-01

Displays and connectors

2.1 Opening the covers of the housing

Location of the display elements and the electrical connectors

The LEDs for the detailed display of the module statuses are located behind the upper cover of the module housing.

The terminals for the power supply are located on the top of the module.

The PROFIBUS connector is located behind the lower cover of the module.

Opening the covers of the housing

Open the upper or lower cover of the housing by pulling it down or up as shown in the illustration. The covers extend beyond the housing to give you a grip.

Figure 2-1 Opening the covers of the housing

Displays and connectors

2.2 LEDs

CM 1243-5

12 Operating Instructions, 04/2011, C79000-G8976-C246-01

2.2 LEDs

LEDs of the module

The module has various LEDs for displaying the status:

● LED on the front panel

The "DIAG" LED that is always visible shows the basic statuses of the module.

Table 2- 1 LED on the front panel

LED / colors Name Meaning

red / green

DIAG Display of the basic status of the module

● LEDs below the upper cover of the housing

Open the upper housing cover. The LEDs here provide more detailed information on the module status.

Table 2- 2 LEDs below the upper cover of the housing

LED / colors Name Meaning

yellow / green

RUN/STOP Details on the operational and communications status of the

module

red

ERROR Group error

- not used - -

NOTICE

LED colors when the module starts up

When the module starts up, all its LEDs are lit for a short time. Multicolored LEDs display a color mixture. At this point in time, the color of the LEDs is not clear.

Displays and connectors

2.2 LEDs

CM 1243-5 Operating Instructions, 04/2011, C79000-G8976-C246-01

Display of the operating and communication status

The LED symbols in the following tables have the following significance:

Table 2- 3 Meaning of the LED symbols

Symbol

LED status OFF ON (steady light) Flashing, one color Flashing

yellow-green

Not relevant

The LEDs indicate the operating and communications status of the module according to the following scheme:

Table 2- 4 Display of the basic states of the module by the "DIAG" LED

DIAG

(red / green)

Meaning Comment

Power OFF

green

RUN without errors

flashing green

 Startup  STOP without errors  No project data  Firmware update

The individual states are signaled by the RUN/STOP and ERROR LEDs (see below).

flashing red

Problem / error The individual states are signaled by the

RUN/STOP and ERROR LEDs (see below).

Displays and connectors

2.2 LEDs

CM 1243-5

14 Operating Instructions, 04/2011, C79000-G8976-C246-01

Table 2- 5 Display schemes for detailed module statuses

DIAG

(red / green)

- RUN/STOP (yellow /

green)

ERROR

(red)

Meaning

Detailed status schemes

green

RUN without errors, Exchange of user data with DP master

flashing green

 Stopped (STOP) without errors  No project data available

flashing green

Starting up (STOP → RUN)

flashing green

Loading firmware (The RUN/STOP and ERROR LEDs flash

alternately.)

flashing red

RUN with PROFIBUS problem:

 DP slave errors  No master-slave connection  PROFIBUS cable not connected or not

detected

flashing red

System fault:

 CM has not received an address from the CPU  Power supply of the CM was interrupted  CPU reset to factory defaults

Solution when the error is permanent: Station power → OFF → ON

Siemens CM 1243-5 Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual