Siemens SIMATIC ET 200SP Technical Document

a
SIMATIC
ET 200SP
CM PtP communications module
(6ES7137
-6AA01-0BA0)
Equipment Manual
03/2021
A5E03790792
-01
Preface
Documentation guide
1
Product overview
2
Connecting
3
Parameters/address space
4
Programming
5
Interrupts/diagnostics
alarms
6
Technical specifications
7

Siemens AG
Digital Industries
Postfach 48 4
8
90026 NÜRNBERG
GERMANY
A5E03790792-01
Ⓟ
03/2021 Subject to change
Copyright © Siemens AG 2021.
All rights reserved
Legal information
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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
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NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
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The product/system described in this documentation may be operated only by personnel qualified for the specific
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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.

CM PtP communications module (6ES7137-6AA01-0BA0)
Equipment Manual, 03/2021, A5E03790792-01 3
Preface
Purpose of the documentation
This documentation provides important information on installing, wiring and commissioning
the ET 200SP point-to-point communications module.
This device manual complements the system manual ET 200SP distributed I/O system
(http://support.automation.siemens.com/WW/view/en/58649293). General functions of the
ET 200SP are described in the system manual ET 200SP distributed I/O system
(http://support.automation.siemens.com/WW/view/en/58649293).
Conventions
This documentation contains figures of the described device. The figures may differ slightly
from the devices supplied.
Please also observe notes marked as follows:
Note
A note contain important information on the product described in the documentation, on the
ha
ndling of the product and on the section of the documentation to which particular
attention should be paid.
Document history
The following table shows the most important changes to the documentation compared to
the previous edition.
Manual edition
Comments
03/2021
The following sections have been revised:
•Product overview (Page 11)
•Connecting (Page 19)
•Parameters/address space (Page 26)
•Programming (Page 35)
•Interrupts/diagnostics alarms (Page 37)
•Technical specifications (Page 41)
01/2013
First edition

Preface
CM PtP communications module (6ES7137-6AA01-0BA0)
4Equipment Manual, 03/2021, A5E03790792-01
Siemens Industry Online Support
You can find current information on the following topics quickly and easily here:
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solutions on the basis of Totally Integrated Automation (TIA) and Totally Integrated Power
(TIP).
You can find catalogs for all automation and drive products on the Internet
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(https://www.siemens.com/automation/infocenter).
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networks. Systems, machines and components should only be connected to the enterprise
network or the internet if and to the extent necessary and with appropriate security measures
(e.g. use of firewalls and network segmentation) in place.

Preface
CM PtP communications module (6ES7137-6AA01-0BA0)
Equipment Manual, 03/2021, A5E03790792-01 5
Additionally, Siemens’ guidance on appropriate security measures should be taken into
account. For more information about industrial security, please visit
(https://www.siemens.com/industrialsecurity).
Siemens’ products and solutions undergo continuous development to make them more
secure. Siemens strongly recommends to apply product updates as soon as available and to
always use the latest product versions. Use of product versions that are no longer supported,
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To stay informed about product updates, subscribe to the Siemens Industrial Security RSS
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Open-source software is used in the firmware of the product described. Open Source
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For legal reasons, we are obliged to publish the original text of the license conditions and
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(https://support.industry.siemens.com/cs/ww/en/view/109740777).

CM PtP communications module (6ES7137-6AA01-0BA0)
6Equipment Manual, 03/2021, A5E03790792-01
Table of contents
Preface................................................................................................................................................... 3
1 Documentation guide............................................................................................................................ 7
2 Product overview................................................................................................................................. 11
2.1 Properties.......................................................................................................................... 11
2.2 Functions .......................................................................................................................... 15
2.3 Properties of the interfaces ................................................................................................ 16
2.3.1 Properties of the RS232 interface ....................................................................................... 16
2.3.2 Properties of the RS422/485 interface ................................................................................ 18
3 Connecting .......................................................................................................................................... 19
3.1 Introduction ...................................................................................................................... 19
3.2 RS232 interface of the communications module................................................................. 20
3.3 RS422/485 interface of the communications module.......................................................... 23
3.4 Installation guidelines........................................................................................................ 25
4 Parameters/address space ................................................................................................................... 26
4.1 Configuring ....................................................................................................................... 26
4.2 Reaction to CPU STOP ........................................................................................................ 27
4.3 Parameter setting .............................................................................................................. 28
4.4 Address space.................................................................................................................... 34
5 Programming....................................................................................................................................... 35
5.1 Programming .................................................................................................................... 35
6 Interrupts/diagnostics alarms.............................................................................................................. 37
6.1 Status and error displays.................................................................................................... 37
6.2 Diagnostic alarms .............................................................................................................. 39
7 Technical specifications....................................................................................................................... 41

CM PtP communications module (6ES7137-6AA01-0BA0)
7Equipment Manual, 03/2021, A5E03790792-01
Documentation guide
1
The documentation for the SIMATIC ET 200SP distributed I/O system is arranged into three
areas.
This arrangement enables you to access the specific content you require.
Basic information
The System Manual and Getting Started describe in detail the configuration, installation,
wiring and commissioning of the SIMATIC ET 200SP distributed I/O system. The STEP 7 online
help supports you in the configuration and programming.
Device information
Product manuals contain a compact description of the module-specific information, such as
properties, wiring diagrams, characteristics and technical specifications.

Documentation guide
CM PtP communications module (6ES7137-6AA01-0BA0)
8Equipment Manual, 03/2021, A5E03790792-01
General information
The function manuals contain detailed descriptions on general topics regarding the
SIMATIC ET 200SP distributed I/O system, e.g. diagnostics, communication, Web server,
motion control and OPC UA.
You can download the documentation free of charge from the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109742709).
Changes and supplements to the manuals are documented in a Product Information.
You can download the product information free of charge from the Internet
(https://support.industry.siemens.com/cs/us/en/view/73021864).
Manual Collection ET 200SP
The Manual Collection contains the complete documentation on the SIMATIC ET 200SP
distributed I/O system gathered together in one file.
You can find the Manual Collection on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/84133942).
"mySupport"
With "mySupport", your personal workspace, you make the best out of your Industry Online
Support.
In "mySupport", you can save filters, favorites and tags, request CAx data and compile your
personal library in the Documentation area. In addition, your data is already filled out in
support requests and you can get an overview of your current requests at any time.
You must register once to use the full functionality of "mySupport".
You can find "mySupport" on the Internet (https://support.industry.siemens.com/My/ww/en).
"mySupport" - Documentation
With "mySupport", your personal workspace, you make the best out of your Industry Online
Support.
In "mySupport", you can save filters, favorites and tags, request CAx data and compile your
personal library in the Documentation area. In addition, your data is already filled out in
support requests and you can get an overview of your current requests at any time.
You must register once to use the full functionality of "mySupport".
You can find "mySupport" on the Internet
(http://support.industry.siemens.com/My/ww/en/documentation).

Documentation guide
CM PtP communications module (6ES7137-6AA01-0BA0)
Equipment Manual, 03/2021, A5E03790792-01 9
"mySupport" - CAx data
In the CAx data area of "mySupport", you can access the latest product data for your CAx or
CAe system.
You configure your own download package with a few clicks.
In doing so you can select:
•Product images, 2D dimension drawings, 3D models, internal circuit diagrams, EPLAN
macro files
•Manuals, characteristics, operating manuals, certificates
•Product master data
You can find "mySupport" - CAx data on the Internet
(http://support.industry.siemens.com/my/ww/en/CAxOnline).
Application examples
The application examples support you with various tools and examples for solving your
automation tasks. Solutions are shown in interplay with multiple components in the system -
separated from the focus on individual products.
You will find the application examples on the Internet
(https://support.industry.siemens.com/sc/ww/en/sc/2054).
TIA Selection Tool
With the TIA Selection Tool, you can select, configure and order devices for Totally Integrated
Automation (TIA).
This tool is the successor of the SIMATIC Selection Tool and combines the known
configurators for automation technology into one tool.
With the TIA Selection Tool, you can generate a complete order list from your product
selection or product configuration.
You can find the TIA Selection Tool on the Internet
(http://w3.siemens.com/mcms/topics/en/simatic/tia-selection-tool).
SIMATIC Automation Tool
You can use the SIMATIC Automation Tool to perform commissioning and maintenance
activities simultaneously on various SIMATIC S7 stations as a bulk operation independent of
TIA Portal.
The SIMATIC Automation Tool provides a multitude of functions:
•Scanning of a PROFINET/Ethernet system network and identification of all connected CPUs
•Address assignment (IP, subnet, gateway) and station name (PROFINET device) to a CPU
•Transfer of the date and the programming device/PC time converted to UTC time to the
module

Documentation guide
CM PtP communications module (6ES7137-6AA01-0BA0)
10 Equipment Manual, 03/2021, A5E03790792-01
•Program download to CPU
•RUN/STOP mode switchover
•CPU localization by means of LED flashing
•Reading out of CPU error information
•Reading of the CPU diagnostics buffer
•Reset to factory settings
•Firmware update of the CPU and connected modules
You can find the SIMATIC Automation Tool on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/98161300).
PRONETA
SIEMENS PRONETA (PROFINET network analysis) allows you to analyze the plant network
during commissioning. PRONETA features two core functions:
•The topology overview automatically scans the PROFINET and all connected components.
•The IO check is a fast test of the wiring and the module configuration of a plant.
You can find SIEMENS PRONETA on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/67460624).
SINETPLAN
SINETPLAN, the Siemens Network Planner, supports you in planning automation systems and
networks based on PROFINET. The tool facilitates professional and predictive dimensioning of
your PROFINET installation as early as in the planning stage. In addition, SINETPLAN supports
you during network optimization and helps you to exploit network resources optimally and to
plan reserves. This helps to prevent problems in commissioning or failures during productive
operation even in advance of a planned operation. This increases the availability of the
production plant and helps improve operational safety.
The advantages at a glance
•Network optimization thanks to port-specific calculation of the network load
•Increased production availability thanks to online scan and verification of existing systems
•Transparency before commissioning through importing and simulation of existing STEP 7
projects
•Efficiency through securing existing investments in the long term and the optimal use of
resources
You can find SINETPLAN on the Internet (https://www.siemens.com/sinetplan).

CM PtP communications module (6ES7137-6AA01-0BA0)
11 Equipment Manual, 03/2021, A5E03790792-01
Product overview
2
2.1 Properties
Article number
6ES7137-6AA01-0BA0 (packing unit: pack of 1)
6ES7137-6AA01-2BA0 (packing unit: pack of 10)
The CM PtP communications module with article number 6ES7137-6AA01-0BA0 and
firmware version V2.0 replaces the CM PtP with article number 6ES7137-6AA00-0BA0.
Firmware version
This manual describes the properties of firmware version V2.0 of the module.

Product overview
2.1 Properties
CM PtP communications module (6ES7137-6AA01-0BA0)
12 Equipment Manual, 03/2021, A5E03790792-01
View of the module
①Module type and designa-
tion
⑦Function class
②
LED for diagnostics
⑧
Module type color coding
③
2D matrix code
⑨
Function and firmware version
④Terminal diagram ⑩Color code for selection of the color-coded labels and BaseUnit
type
⑤
LED for status indicators
⑪
Article number
⑥
LED for supply voltage
Figure 2-1 View of the CM PtP module as an example

Product overview
2.1 Properties
CM PtP communications module (6ES7137-6AA01-0BA0)
Equipment Manual, 03/2021, A5E03790792-01 13
Properties
The communications module has the following properties:
•Technical properties
–RS232 interface (via BaseUnit)
–RS422/485 interface (via BaseUnit)
–short-circuit proof
–electrically disconnected
–Protocols: 3964(R), Modbus master (RTU), Modbus slave (RTU), Freeport and USS with
instructions
The module supports the following functions:
Table 2- 1 Version dependencies of the functions
Function Firmware
version of the
module
Configurable as of
STEP 7
(TIA Portal)
GSD
PROFINET IO
PROFIBUS DP
Firmware update
V1.0 or higher
V12
X
—
Identification data I&M0
V1.0 or higher
V12
X
X
Parameter reassignment in RUN (using in-
structions)
V1.0 or higher
V12
X
X
Diagnostics interrupts
V1.0 or higher
V12
X
X
Data transmission rate up to 250 kbit/s
1
with
RS485; DMX512 protocol
V1.0.5 or higher
V17
X
X
Option for performance optimization
V2.0 or higher
V17
X
X
1
250 kbit/s with firmware versions <V2.0 can only be configured with instructions or data records
Firmware versions V1.0 to V1.0.5 are available for the article number 6ES7137-6AA00-0BA0. Firmware version V2.0 is
available for the article number 6ES7137-6AA01-0BA0.
Accessories
A BaseUnit of type A0 is needed for operation of the communications module. You will find
an overview of the BaseUnits you can use with the communications module in Product
information on the documentation of the ET 200SP distributed I/O system
(http://support.automation.siemens.com/WW/view/en/73021864).
You can find additional information on the accessories in the ET 200SP distributed I/O system
(http://support.automation.siemens.com/WW/view/en/58649293) system manual.

Product overview
2.1 Properties
CM PtP communications module (6ES7137-6AA01-0BA0)
14 Equipment Manual, 03/2021, A5E03790792-01
Additional information
Additional information on the properties of the CM PtP can be found in the function manual
CM PtP - Configurations for point-to-point connections
(http://support.automation.siemens.com/WW/view/en/59057093).
You can find additional information on the design of the ET 200SP and the associated
modules in the system manual ET 200SP distributed I/O system
(http://support.automation.siemens.com/WW/view/en/58649293).
Additional information on using the CM PtP without the prepared instruction libraries is
available in the programming and operating manual CM PtP operation with PROFINET
controller (http://support.automation.siemens.com/WW/view/en/59062563).

Product overview
2.2 Functions
CM PtP communications module (6ES7137-6AA01-0BA0)
Equipment Manual, 03/2021, A5E03790792-01 15
2.2 Functions
Introduction
The communications module allows you to exchange data between your own and other
programmable controllers or computers by means of a point-to-point connection, and to
connect various devices from a variety of manufacturers.
Functionality of the CM PtP
The CM PtP communications module offers the following functionality:
•RS232 and RS422/485 interface
•Data transmission rate: 300 to 250000 bit/s
•Maximum frame length:
–Without performance optimization: 2 kbyte
–With performance optimization: 24 bytes for receiving, 30 bytes for sending
•Transmission protocols: Freeport, 3964(R) and Modbus RTU
Note
The USS protocol can be implemented with instructions included in STEP 7 (TIA Portal).
Hardware components of a point-to-point connection
You require certain hardware components for a point-to-point connection with the CM PtP.
Components
Function
Automation system
... contains the CPU and PROFINET interface, and the central I/O, if appli-
cable, and executes the user program.
ET 200SP Distributed I/O System
... contains the distributed I/O.
Interface module (IM)
... connects the ET 200SP distributed I/O system with PROFINET IO or any
other fieldbus system and supports all ET 200SP I/O modules.
CM PtP communications module
... communicates via the interface with one or more communication
partners (point-to-point or multipoint connection).
BaseUnit (6ES7193-6BPx0-0xA0)
... connects the communications module with the I/O system and the
supply voltage.
Server module
... completes the setup of the ET 200SP.
Additional information
Information on configuration and programming of the CM PtP communications module is
available in the function manual CM PtP - Configurations for point-to-point connections
(http://support.automation.siemens.com/WW/view/en/59057093) and in the information
system of STEP 7 (TIA Portal).

Product overview
2.3 Properties of the interfaces
CM PtP communications module (6ES7137-6AA01-0BA0)
16 Equipment Manual, 03/2021, A5E03790792-01
2.3 Properties of the interfaces
Interfaces of the CM PtP
The CM PtP has the following interfaces, which are connected (Page 19) by means of the
associated BaseUnit:
•RS232 interface
•RS422/485 interface
2.3.1 Properties of the RS232 interface
Definition
The RS232 interface is a voltage interface used for serial data transmission.
Properties
The RS232 interface has the following properties and meets the following requirements:
Type
Voltage interface
BaseUnit terminals
Terminals connected to the electronics module (see RS232 interface of the
communications module (Page 20) for assignment)
RS232 signals
TXD, RXD, RTS, CTS, DTR, DSR, RI, DCD, GND; all signals isolated against the
backplane bus and load voltage
Max. data transmission
rate
115.2 kbps
max. cable length
15 m, cable type LIYCY 9 x 0.14
Standard
DIN 66020, DIN 66259, EIA-RS 232C, CCITT V.24/V.28

Product overview
2.3 Properties of the interfaces
CM PtP communications module (6ES7137-6AA01-0BA0)
Equipment Manual, 03/2021, A5E03790792-01 17
RS232 signals
The table below shows the meaning of the individual RS232 accompanying signals.
Table 2- 2 Signals of the RS232 interface
Signal
Designation
Meaning
TXD
Transmit Data
Transmit data; transmit cable logically held to "1" by communications module in idle
state.
RXD
Receive Data
Receive data; receive cable logically held to "1" by communication partner in idle state.
RTS
Request To Send
Request to send
RTS set to "ON": communications module ready to send; signals to the communication
partner that there is data ready to send
RTS set to "OFF": communications module does not send
CTS
Clear To Send
Clear to send
CTS set to "ON": Signals "clear to send" to the communication partner
CTS set to "OFF": Signals "Not clear to send" to the communication partner
DTR
Data Terminal Ready
DTR set to "ON": Communications module switched on, ready for operation
DTR set to "OFF": Communications module not switched on, not ready for operation
DSR
Data Set Ready
DSR set to "ON": Communication partner signals "ready for operation"
DSR set to "OFF": Communication partner not switched on, not ready for operation
RI
Ring Indicator
Incoming call when connecting a modem
DCD
Data Carrier Detect
Carrier signal when connecting a modem. The communication partner signals with a
high level that it detects incoming data on the cable.

Product overview
2.3 Properties of the interfaces
CM PtP communications module (6ES7137-6AA01-0BA0)
18 Equipment Manual, 03/2021, A5E03790792-01
2.3.2 Properties of the RS422/485 interface
Definition
The RS422/485 (X27) interface is a differential voltage interface for serial data transmission.
Properties
The RS422/485 (X27) interface has the following properties and meets the following
requirements:
Type
Differential voltage interface
BaseUnit terminals
Terminals connected to the electronics module (see RS422/485 interface of
the communications module (Page 23) for assignment)
RS422 signals
T (A), R (A), T (B), R (B), GND;
all signals are isolated against the backplane bus and the load voltage
RS485 signals
R/T (A), R/T (B), GND;
all signals isolated against backplane bus and load voltage
Max. data transmission
rate
250 kbps
Max. cable length
1200 m for 0.3...19.2 kbps,
500 m for 38.4 kbps,
350 m for 76.8 kbps,
250 m for 115.2 kbps,
200 m for 250 kbps;
cable type LIYCY 3 x 2 x 0.14. T(A)/T(B) and R(A)/R(B) twisted in pairs
To ensure interference-free operation for cable lengths > 50 m, you must
install a terminating resistor of approx. 330 Ω at the receiver end.
Standard
DIN 66259 Parts 1 and 3, EIA-RS422/485, CCITT V.11

CM PtP communications module (6ES7137-6AA01-0BA0)
19 Equipment Manual, 03/2021, A5E03790792-01
Connecting
3
3.1 Introduction
The CM PtP communications module is used with a BaseUnit of type A0 (article number
6ES7193-6BPx0-0xA0).
You connect the input and output signals to the BaseUnit of the communications module.
The supply voltage feed on the light-colored BaseUnit BU...D of the associated potential
group supplies the module.
BaseUnit
The BaseUnit is not included in the scope of delivery of the module and must be ordered
separately.
You will find an overview of the BaseUnits you can use with the communications module in
Product information on the documentation of the ET 200SP distributed I/O system
(http://support.automation.siemens.com/WW/view/en/73021864).
You can find information about selecting a suitable BaseUnit in the ET 200SP Distributed I/O
system (http://support.automation.siemens.com/WW/view/en/58649293) system manual and
ET 200SP BaseUnits
(http://support.automation.siemens.com/WW/view/en/58532597/133300) manual.
You can find information on wiring the BaseUnit, connecting cable shields, etc. in the Wiring
section of the ET 200SP Distributed I/O system
(http://support.automation.siemens.com/WW/view/en/73021864) system manual.
Supply voltage L+/M
With a light-colored BaseUnit, you connect the supply voltage to the L+ and M terminals. With
a dark BaseUnit, the supply voltage of the left-hand module is used. An internal protective
circuit protects the communications module from polarity reversal of the supply voltage. The
communications module monitors the connection of the supply voltage.

Connecting
3.2 RS232 interface of the communications module
CM PtP communications module (6ES7137-6AA01-0BA0)
20 Equipment Manual, 03/2021, A5E03790792-01
3.2 RS232 interface of the communications module
RS232 interface
The RS232 interface is a voltage interface used for serial data transmission.
The inputs and outputs are not isolated from each other. The inputs and outputs are
electrically isolated from the backplane bus.
Terminal assignment of the BaseUnit
Table 3- 1 RS232 connection
Terminal assignment of
the
BaseUnit of the communi-
cations module
Pin Designation Input/output Meaning
1
TXD Transmit Data
Output
Transmit data
2
RXD Receive Data
Input
Receive data
3
RTS Request To Send
Output
Request to send
4
CTS Clear To Send
Input
Clear to send
5
DTR Data Terminal Ready
Output
Data terminal ready
6
DSR Data Set Ready
Input
Data set ready
7
DCD Data Carrier Detect
Input
Received signal level
8
RI Ring Indicator
Input
Incoming call
9
GND Ground
---
Shared ground reference
(ground)
10
Front view