Siemens SIMATIC ET 200SP User manual

Manual
Edition
AS-Interface Master CM AS-i Master ST
3RK7137-6SA00-0BC1
siemens.com
07/2017
ET 200SP
SIMATIC

___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________
___________________
___________________
___________________
___________
___________________
___________________
___________________
SIMATIC
ET 200SP
AS-Interface master CM AS-i
Master ST (3RK7137-6SA00-0BC1)
Manual
07/2017
A5E02655262020A/RS
-AD/004
Foreword
Documentation guide
1
Safety instructions
2
Product overview
3
Connection
4
Configuring
5
Parameter
assignment/addressing
6
Data exchange between the
user program and AS-i
slaves
7
Alarms, faults and system
events
8
Using the command
interface
9
Technical data
10
AS-Interface Protocol
Implementation
Conformance Statements
A
Readme Open Source
Software
B
Data sets
C
List of abbreviations
D

Siemens AG
Division Digital Factory
Postfach 48 48
90026 NÜRNBERG
GERMANY
3ZX1012-0RK71-6AC1
Ⓟ
07/2017 Subject to change
Copyright © Siemens AG 2013.
All rights
reserved
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
indicates that minor personal injury can result if proper precautions are not taken.
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
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, 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 complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of 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.

AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004 5
Foreword
Purpose of the documentation
This device manual supplements the "ET 200SP Distributed I/O System" System Manual.
Functions that pertain generally to the ET 200SP can be found in the "ET 200SP distributed
I/O system (http://support.automation.siemens.com/WW/view/en/58649293/0/en)" System
Manual.
The information provided in this device manual and the system manual enables you to
commission the ET 200SP distributed I/O system.

Foreword
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
6Manual, 07/2017, A5E02655262020A/RS-AD/004

AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004 7
Table of contents
Foreword ................................................................................................................................................... 5
1 Documentation guide............................................................................................................................... 11
2 Safety instructions ................................................................................................................................... 13
3 Product overview ..................................................................................................................................... 15
3.1 Characteristics of the CM AS-i Master ST..............................................................................15
3.2 Operating modes of the CM AS-i Master ST ..........................................................................19
3.3 Firmware update.....................................................................................................................21
4 Connection .............................................................................................................................................. 25
4.1 Terminal assignment...............................................................................................................25
4.2 Schematic circuit diagram.......................................................................................................27
5 Configuring .............................................................................................................................................. 29
5.1 Requirements..........................................................................................................................29
5.2 Basic configuration of the CM AS-i Master ST .......................................................................30
5.3 Configuration of the AS-i slaves .............................................................................................31
5.3.1 Configuration of the AS-i slaves in STEP 7 ............................................................................31
5.3.2 Configuration of the AS-i slaves using the "SET" button ........................................................34
5.3.3 Configuration of the AS-i slaves via the control panel in the TIA Portal.................................36
5.3.4 Configuration of the AS-i slaves using the PLC program .......................................................36
5.4 Online functions in the TIA Portal ...........................................................................................37
5.4.1 Switching from one operating mode to another......................................................................37
5.4.2 Applying the slave configuration.............................................................................................38
5.4.3 Setting the address of an AS-i slave.......................................................................................39
5.5 Variable configuration .............................................................................................................39
5.5.1 Option handling.......................................................................................................................39
5.5.1.1 DS 131 Activate/deactivate optional slaves............................................................................40
5.5.1.2 DS 131 Read status of option handling ..................................................................................41
5.5.2 AS-i proxy slave......................................................................................................................42
6 Parameter assignment/addressing .......................................................................................................... 43
6.1 Parameters .............................................................................................................................43
6.2 Explanation of the parameters................................................................................................44
6.3 Address space ........................................................................................................................44
7 Data exchange between the user program and AS-i slaves .................................................................... 45
7.1 Access to AS-Interface ...........................................................................................................45
7.2 Transmitting AS-i digital values ..............................................................................................46
7.2.1 I/O addresses when configuring AS-i slaves in STEP 7.........................................................46

Table of contents
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
8Manual, 07/2017, A5E02655262020A/RS-AD/004
7.2.2 I/O addresses without configuration of the AS-i slaves in STEP 7 ........................................ 50
7.2.3 Special characteristics of AS-i Safety slaves......................................................................... 55
7.3 AS-i analog values and transparent / digital values more than 4 bits in length are
transferred.............................................................................................................................. 56
7.3.1 Accessing AS-i analog data via the process image............................................................... 58
7.3.2 Accessing AS-i analog data via acyclic services ................................................................... 58
8 Alarms, faults and system events ............................................................................................................ 61
8.1 Overview ................................................................................................................................ 61
8.2 Diagnostics in STEP 7 ........................................................................................................... 62
8.3 LED statuses.......................................................................................................................... 63
8.3.1 Arrangement of the LEDs on the CM AS-i Master ST ........................................................... 63
8.3.2 Meaning of the LEDs ............................................................................................................. 64
8.4 Diagnostic messages............................................................................................................. 69
8.4.1 Alarms .................................................................................................................................... 69
8.4.2 Possible response to the diagnostic interrupt........................................................................ 69
8.4.3 Error messages...................................................................................................................... 70
8.5 Replacing a defective AS-i slave / automatic address programming .................................... 74
8.6 Duplicate address detection................................................................................................... 76
8.7 Diagnosis via the web server................................................................................................. 79
8.8 Fault indications/fault remedies ............................................................................................. 80
8.9 Data records for diagnostics .................................................................................................. 82
8.9.1 DS 92 Diagnostic data record (FW V1.1 and higher) ............................................................ 82
8.9.2 DS 96 Read AS-i master error counters and status messages (FW V1.1 and higher) ......... 86
8.9.3 DS 97 Read and reset AS-i master error counters (FW V1.1 and higher) ............................ 89
8.9.4 DS 150 to DS 153 Read AS-i error counters......................................................................... 89
8.9.4.1 DS 150 Read AS-i slave error counters 1/1A to 16/16A........................................................ 92
8.9.4.2 DS 151 Read AS-i slave error counters 16/16A to 31/31A.................................................... 93
8.9.4.3 DS 152 Read AS-i slave error counters 1B to 16B................................................................ 94
8.9.4.4 DS 153 Read AS-i slave error counters 16B to 31B.............................................................. 95
8.9.5 DS 154 Delete AS-i error counters (from FW V1.1)............................................................... 96
9 Using the command interface .................................................................................................................. 97
9.1 Introduction ............................................................................................................................ 97
9.2 Command interface with SIMATIC S7 ................................................................................... 97
9.3 Command interface with controllers of other manufacturers................................................. 98
9.4 Description of the AS-i commands....................................................................................... 103
9.4.1 No. 00: Set_Permanent_Parameter..................................................................................... 107
9.4.2 No. 01: GET_Permanent_Parameter................................................................................... 108
9.4.3 No. 02: Write_Parameter ..................................................................................................... 109
9.4.4 No. 03: Read_Parameter ..................................................................................................... 110
9.4.5 No. 04: Store_Actual_Parameters........................................................................................ 111
9.4.6 No. A5: Set_Permanent_Configuration................................................................................ 112
9.4.7 No. A6: Get_Permanent_Configuration ............................................................................... 113
9.4.8 No. 07: Store_Actual_Configuration..................................................................................... 114
9.4.9 No. A8: Read_Actual_Configuration .................................................................................... 115

Table of contents
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004 9
9.4.10 No. A9: Set_LPS...................................................................................................................116
9.4.11 No. 0A: SET_Offline_Mode...................................................................................................117
9.4.12 No. 08: Set_Auto_Address_Enable.......................................................................................118
9.4.13 No. 0C: Set_Operation_Mode...............................................................................................119
9.4.14 No. 0D: Change_AS-i-Slave_Address ..................................................................................120
9.4.15 No. 0F: Read_Status.............................................................................................................121
9.4.16 No. B0: Get_LPS, Get_LAS, Get_LDS, Get_Flags...............................................................122
9.4.17 No. B9: Read_overall_configuration .....................................................................................125
9.4.18 No. BA: Write_overall_configuration .....................................................................................131
9.4.19 No. 3C: Set_PI ......................................................................................................................138
9.4.20 No. 33: AS-i Parameter Echolist...........................................................................................141
9.4.21 No. 44: Read_Write_CTT2_String ........................................................................................142
9.4.22 No. 14: Read_Version...........................................................................................................144
9.4.23 No. 17: Read ID_Code..........................................................................................................144
9.4.24 No. 37: Read_ID1-Code .......................................................................................................145
9.4.25 No. 3F: Write ID1-Code ........................................................................................................145
9.4.26 No. 38: Read_ID2-Code .......................................................................................................146
9.4.27 No. 18: Read_IO-Code .........................................................................................................146
9.4.28 No. BE: Get_LPF ..................................................................................................................147
9.4.29 No. 40: Write_Parameter_String...........................................................................................148
9.4.30 No. 41: Read_String..............................................................................................................149
9.4.31 No. 42: Read_String..............................................................................................................150
9.4.32 No. 43: Read_String..............................................................................................................151
9.4.33 No. CA: Read_Error_Counter ...............................................................................................152
9.4.34 No. CB: Read_and_Delete_AS-i-Master_Error_Counter ......................................................155
9.4.35 No. CC: Read_AS-i_error_counter........................................................................................156
9.4.36 No. CD: Read_and_delete_AS-i_Slave_error_counter .........................................................157
9.4.37 No. 13: Activate_ground fault detection (reset EFD) ............................................................158
9.4.38 No. D0: Set_Configuration_Online........................................................................................159
9.4.39 No. D1: AS-i-Slave_ID1_schreiben_mit_Zieladresse (Write ID1 code with destination
address) ................................................................................................................................160
10 Technical data ....................................................................................................................................... 161
10.1 Technical data in Siemens Industry Online Support.............................................................161
A AS-Interface Protocol Implementation Conformance Statements .......................................................... 163
A.1 AS-Interface Protocol Implementation Conformance Statement (PICS)..............................163
B Readme Open Source Software............................................................................................................ 167
B.1 Read_me OSS......................................................................................................................167
C Data sets ............................................................................................................................................... 171
C.1 DS 100 Switch duplicate address detection on/off ...............................................................171
C.2 DS 100 Read setting for duplicate address detection ..........................................................172
C.3 DS 101 Read version identifier.............................................................................................172
D List of abbreviations............................................................................................................................... 173
D.1 List of abbreviations..............................................................................................................173

Table of contents
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
10 Manual, 07/2017, A5E02655262020A/RS-AD/004
Glossary ................................................................................................................................................ 175
Index...................................................................................................................................................... 181

AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004 11
Documentation guide
1
The following paragraph gives you an overview of the additional documentation you need to
use the CM AS-i Master ST.
The documentation for the SIMATIC ET 200SP distributed I/O system is subdivided into
three areas.
This enables you to access the required content quickly.
Basic information
The System Manual describes configuration, assembly, wiring and commissioning of the
SIMATIC ET 200SP distributed I/O system. The
STEP 7 online help supports you with
configuration and programming.
Device information
Manuals contain a compact description of the module-specific information, such as
properties, connection diagrams, characteristics and technical specifications.
General information
The Function Manuals contain detailed descriptions on topics relating to the
SIMATIC ET 200SP environment, such as configuring diagnostics, communications, web
servers and controllers for problem-free operation.
The following paragraph gives you an overview of the additional documentation you need to
use the CM AS-i Master ST.

Documentation guide
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
12 Manual, 07/2017, A5E02655262020A/RS-AD/004
Documentation for the ET 200SP distributed I/O system with the CM AS-i master ST
Figure 1-1 Example of a system structure
Table 1- 1 Documentation for the ET 200SP distributed I/O system with the CM AS-i master ST
No.
Component
Documentation
Most important contents
①
System SIMATIC ET 200SP ET 200SP distributed I/O system
(http://support.automation.siemens.com/WW/view/en/58649293/0/en)
SIMATIC distributed I/O (http://w3.siemens.com/mcms/industrial-
automation-systems-simatic/en/manual-overview/tech-doc-
et200/Pages/Default.aspx)
•Application planning
•Installation
•Connecting
•Commissioning
•Technical
specifications
②BaseUnits SIMATIC ET 200SP BaseUnits
(https://support.industry.siemens.com/cs/ww/en/view/59753521)
•Connecting
•Technical
specifications

AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004 13
Safety instructions
2
Important safety instructions
WARNING
Failure to observe this information may result in death, severe injury, and serious property
damage.
For use in Pollution Degree 2 Environment.
WARNING
Failure to observe this information may result in death, severe injury, and serious property
damage.
When used in hazardous hazardous environments corresponding to Class I, Division 2 or
Class I, Zone 2, the device must be installed in a cabinet or a suitable enclosure. To comply
with EU Directive 94/9 (ATEX 95), this enclosure must meet the requirements of at least
IP54 in compliance with EN 60529.
WARNING
Explosion Hazard; failure to observe this information may result in death, severe injury, and
serious property damage.
Do not disconnect equipment when a flammable or combustible atmosphere is present.
WARNING
Explosion hazard; failure to observe this information may result in death, severe injury, and
serious property damage.
Do not disconnect while circuit is live unless area is known to be non-hazardous.
WARNING
Explosion hazard; failure to observe this information may result in death, severe injury, and
serious property damage.
Substitution of components may impair suitability for class I, division 2 or zone 2.
WARNING
Explosion hazard; failure to observe this information may result in death, severe injury, and
serious property damage.
Do not open when energized.

Safety instructions
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
14 Manual, 07/2017, A5E02655262020A/RS-AD/004
WARNING
Failure to observe this information may result in death, severe injury, and serious property
damage.
The equipment is designed for operation with Safety Extra-Low Voltage (SELV) by a
Limited Power Source (LPS).
This means that only SELV / LPS complying with IEC 60950-1, EN 60950-1, VDE 0805-1
must be connected to the power supply terminals.
The power supply unit for the equipment power supply must comply with NEC Class 2, as
described by the National Electrical Code (r) (ANSI / NFPA 70).
WARNING
Failure to observe this information may result in death, severe injury, and serious property
damage.
Provisions shall be made to prevent the rated voltage from being exceeded by transient
disturbances of more than 40 %. This criteria is fulfilled if supples are derived from SELV
(Safety Extra-Low Voltage) only.
CAUTION
Failure to observe this information may result in property damage and bodily injury
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, and D or non-
hazardous locations only.
CAUTION
Failure to observe this information may result in property damage and bodily injury
This equipment is suitable for use in Class I, Zone 2, Group IIC or non-hazardous locations
only.

AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004 15
Product overview
3
3.1
Characteristics of the CM AS-i Master ST
Article number
3RK7137-6SA00-0BC1
Brief introduction to AS-Interface
AS-Interface or Actuator-Sensor-Interface (AS-i for short) is a fieldbus system for industrial
use that is used to transmit digital and analog signals between a controller and machine or
process in real-time. The system can be used for standard signals as well as for safety-
related signals.
AS-Interface is designed to connect actuators and sensors to the controller as easily, flexibly
and efficiently as possible.
The system consists of an AS-i master and up to 62 AS-i slaves that are simply plugged onto
the yellow AS-i flat ribbon cable at any point or connected via terminals. The AS-i cable can
be up to 100 m long with free choice of topology. A length of up to 200 m is possible with an
additional extension plug. The system can be extended beyond that through the use of
repeaters.
In addition, an AS-i power supply unit is connected to the cable such that the slaves and
their connected sensors are supplied with operating voltage without additional cabling.
Actuators are usually supplied with voltage by means of a 24 V cable, because they
generally need more power than sensors.
A typical digital AS-i slave has up to 4 inputs and 4 outputs. The slaves are installed directly
in the plant as close as possible to the sensors or actuators so that the connecting cables
can be kept very short. The insulation displacement method is the preferred method for
connection to the AS-i flat ribbon cable so that assembly can be completed without errors in
the least amount of time. For safety-related signals, safety slaves and modules are available
for safety-related processing of signals. In addition, analog slaves and complete switchgear
with integrated AS-i slave are offered.
The default voltage fed in from the AS-i power supply unit is 30 V DC. As a result, sensors
with a rated voltage of 24 V can be used without any problems despite the voltage drop on a
longer AS-i cable. Because the AS-i cable transmits both operating DC voltage and
modulated communication signals, the AS-i power supply unit contains a data decoupling
unit for separating the two voltage waveforms.
A standard power supply can be used in place of the easy-to-use AS-i power supply if the
AS-i cable is connected via a separate data decoupling module. When a standard power
supply with 24 V DC is used, it must be ensured that the connected AS-i components and
sensors are designed for operation with the corresponding lower voltage.
You will find further information on the Internet at: AS-Interface
(http://www.siemens.com/as-interface).

Product overview
3.1 Characteristics of the CM AS-i Master ST
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
16 Manual, 07/2017, A5E02655262020A/RS-AD/004
Use of the module
The CM AS-i Master ST module is a communication module for use in the
SIMATIC ET 200SP Distributed I/O System.
The CM AS-i Master ST features a 20 mm wide ET 200SP module housing. A BaseUnit (BU)
is required for use in the ET 200SP. The CM AS-i Master ST can be plugged into C0-type
BaseUnits (BU).
You can plug several CM AS-i Master ST modules into one SIMATIC ET 200SP station.
Each CM AS-i Master with firmware version V1.0 occupies 32 bytes of I/O address space.
From firmware version V1.1 onwards, the CM AS-i Master ST supports up to 288 bytes of
I/O address space. The number of possible AS-i master modules depends on the maximum
address space of the utilized Interface Module (IM) of the ET 200SP or the utilized
ET 200SP CPU.
In a SIMATIC ET 200SP station with an IM 155-6 PN ST standard interface module and a
maximum address space of 256 bytes, up to eight CM AS-i Master ST modules can be
plugged in (when the I/O address space is configured as 32 bytes).
Significantly more modules can be plugged into a SIMATIC ET 200SP station with High
Feature Interface Module IM 156-6 PN HF and a maximum address space of 1440 bytes.
If the ET 200SP contains other modules, the available address space is reduced and the
maximum number of AS-i master modules is reduced accordingly. The maximum number of
modules can be increased by shortening the I/O address space of the CM AS-i Master ST
module.
For further information, see the ET 200SP System Manual
(https://support.industry.siemens.com/cs/ww/en/view/84133942).
The CM AS-i Master ST module can generally be combined with all ET 200SP interface
modules. Any exceptions to this are documented in the delivery release product
announcement(s) of the interface module.
The CM AS-i Master ST module (Firmware V1.1 and higher) can generally be combined with
all ET 200SP CPU modules (Firmware V1.8 and higher). Any exceptions to this are
documented in the delivery release product announcement(s) for a CPU module.
The interface modules und CPU modules differ, among other things, in terms of the
maximum number of I/O modules, the length of the I/O process image in the station and the
length of the I/O process image for each I/O module. The technical specifications of the
interface modules and CPU modules can limit the selection of possible parameters of the
CM AS-i Master ST module. Note, in particular, that the length of the I/O process image of
the CM AS-i Master ST module must be selected in such a way that the maximum length of
the I/O process image of the interface module or CPU module is not exceeded.

Product overview
3.1 Characteristics of the CM AS-i Master ST
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004 17
View of the module
Figure 3-1 View of the CM AS-i Master ST
Properties
●Technical properties
–AS-i master acc. to AS-Interface Specification 3.0
–Transmission of digital I/O values to cyclic process image
–Transmission of analog I/O values in the cyclic process image (Firmware V1.1 and
higher) or via acyclic data record communication.
–Configuration button can be connected to terminals
●Supported functions
–I&M identification data
–Firmware update
–Configuration of the AS-i master and AS-i slaves via data records (Read / Write or
command interface)
The module can be used with the following engineering versions:
Table 3- 1 Version dependence of the CM AS-i Master ST engineering versions
Firmware version of the
module
STEP 7 (TIA portal)
STEP 7 V5.5
GSD file
V1.0
V12 and higher
V5.5 SP3 HF5 and higher
X
V1.1 V13 SP1 and higher V5.5 SP3 HF5 and higher X

Product overview
3.1 Characteristics of the CM AS-i Master ST
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
18 Manual, 07/2017, A5E02655262020A/RS-AD/004
For additional information, see product announcement for: CM AS-i Master ST
(https://support.industry.siemens.com/cs/ww/en/view/72865595)
Table 3- 2 Version dependence of the CM AS-i Master ST functions
Function
Firmware version of the module
Configuring in STEP 7 (TIA Portal) V12 and higher
V1.0 and higher
GSD file (PROFIBUS) V1.0 and higher
GSD file (PROFINET)
V1.0 and higher
Access via command data records
V1.0 and higher
Structure of the process image: 32 bytes
V1.0 and higher
Transmission of digital I/O values in the cyclic process image
V1.0 and higher
Transmission of analog I/O values via data record transfer
V1.0 and higher
Firmware update
V1.0 and higher
Duplicate address detection
V1.0 and higher
Automatic address programming with manual writing of the ID1 code
V1.0 and higher
Write ID1 code to AS-i address "0"
V1.0 and higher
Configuring in STEP 7 (TIA Portal) V13 SP1 and higher
V1.1 and higher
Status information for all slaves of the AS-i master system (TIA Portal)
V1.1 and higher
Detailed, device-specific diagnostics (TIA Portal)
V1.1 and higher
Configuring in STEP 7 V5.5 and higher
V1.1 and higher
Option handling
V1.1 and higher
Proxy slave
V1.1 and higher
Structure of the process image: Up to 288 bytes, adjustable length
V1.1 and higher
Transmission of analog I/O values via process data
V1.1 and higher
Variable address area for I/O data
V1.1 and higher
Automatic address programming with automatic writing of the ID1 code
V1.1 and higher
AS-i slave_ID1_write_with_target_address
V1.1 and higher
Automatic duplicate address detection for AS-i voltage of either 24 V or 30 V V1.1 and higher
Accessories
The following components can be used with the module:
●Labeling strips
●Reference identification label

Product overview
3.2 Operating modes of the CM AS-i Master ST
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
Manual, 07/2017, A5E02655262020A/RS-AD/004 19
3.2
Operating modes of the CM AS-i Master ST
The AS-i master has two operating modes:
●"Configuration mode"
●"Protected operation"
"Configuration mode"
"Configuration mode" can be used for commissioning an AS-i installation. You can also use
"configuration mode" for productive operation. The AS-i bus configuration is not defined in
this case. This means that error messages for a change of bus configuration are not
possible.
You switch the AS-i master from "protected operation" to "configuration mode" in
STEP 7 .
The "CM" LED (Configuration Mode) then lights up green.
In "configuration mode", the AS-i master can exchange data with every AS-i slave that is
connected to the AS-i cable. This does not apply to AS-i slaves with the address "0". The
AS-i master immediately detects and activates newly added AS-i slaves and includes them
in cyclic data exchange. The digital process data of the connected AS-i slaves are stored
according to a fixed scheme in the process image starting from a configurable start address.
See "Special characteristics of AS-i Safety slaves (Page 55)". The digital process image for
the inputs of non-existent slaves is filled with the substitute value "0". Analog process data
can only be accessed by means of data record communication.
In "configuration mode", configuration errors of AS-i slaves are not signaled to the higher-
level station via an alarm and are not indicated by the "DIAG" LED.
"Protected operation"
In "protected operation", the AS-i master only exchanges data with the configured AS-
i slaves. In case of changes to the bus configuration, error messages are automatically
generated if diagnostics is enabled. See "Parameter assignment/addressing (Page 43)".
You can configure in one of the following ways:
●Configuration of the AS i slaves in the
STEP 7 project (Configuration of the AS-i slaves in
STEP 7 (Page 31))
●Applying the slave configuration with the online "ACTUAL →CONF" function in
STEP 7
(Applying the slave configuration (Page 38))
●Calling the command interface in the SIMATIC user program with the following
commands:
–No. 07: Store_Actual_Configuration (Page 114)
–No. BA: Write_overall_configuration (Page 131)
●Using the connected "SET" button (Configuration of the AS-i slaves using the "SET"
button (Page 34))
If you have configured the AS-i slave in the
STEP 7 project, the changeover to "protected
operation" occurs automatically.

Product overview
3.2 Operating modes of the CM AS-i Master ST
AS-Interface master CM AS-i Master ST (3RK7137-6SA00-0BC1)
20 Manual, 07/2017, A5E02655262020A/RS-AD/004
Changeover between "configuration mode" and "protected operation"
You can change between "configuration mode" and "protection operation" in one of the
following ways:
●By switching the operating mode using the "Online functions in the TIA Portal (Page 37)".
●By calling the command interface in the user program of SIMATIC with command "No.
0C: Set_Operation_Mode (Page 119)".
●Using the connected "SET" button (Configuration of the AS-i slaves using the "SET"
button (Page 34)).
Changeover is not possible if the AS-i slaves have been configured in the
STEP 7 project
and the CPU is in RUN operating mode.