Siemens SIMATIC NET CP 142-2 User manual

SIMATIC NET
CP 142-2
Manual
1 Introduction
2 Technical Description and Installation Instructions
3 Standard Operation
4 Extended Operation
5 Replacing a Defective Slave / Automatic Address Programming
6 Error Indicators / Dealing with Errors
7 PROFIBUS DP Configuration When Using the
BM141/BM142
A AS-Interface Protocol Implementation
Conformance Statement (PICS)
B References
C Abbreviations
C79000-G8976-C111 Release 02
SIMATIC NET is a trademark of Siemens
Siemens Aktiengesellschaft

Wir haben den Inhalt der Druckschrift auf
Übereinstimmung mit der beschriebenen Hard- und
Software geprüft. Dennoch können Abweichungen
nicht ausgeschlossen werden, so daß wir für die
vollständige Übereinstimmung keine Gewähr
übernehmen. The Angaben in der Druckschrift
werden jedoch regelmäßig überprüft. Notwendige
Korrekturen sind in den nachfolgenden Auflagen
enthalten. Für Verbesserungsvorschläge sind wir
dankbar.
Technische Änderungen vorbehalten.
Weitergabe sowie Vervielfältigung dieser Unterlage,
Verwertung und Mitteilung ihres Inhalts nicht gestattet,
soweit nicht ausdrücklich zugestanden.
Zuwiderhandlungen verpflichten zu Schadenersatz.
Alle Rechte vorbehalten, insbesondere für den Fall
der Patenterteilung oder GM-Eintragung.
C79000-G8900-C111
Copyright © Siemens AG 1997
All Rights Reserved
We have checked the contents of this manual for
agreement with the hardware described. Since
deviations cannot be precluded entirely, we cannot
guarantee full agreement. However, the data in this
manual are reviewed regularly and any necessary
corrections included in subsequent editions.
Suggestions for improvement are welcome.
Technical data subject to change.
The reproduction, transmission or use of this
document or its contents is not permitted without
express written authority. Offenders will be liable for
damages. All rights, including rights created by patent
grant or registration of a utility or design, are reserved.
C79000-G8976-C111
Copyright © Siemens AG 1997
All Rights Reserved
Nous avons vérifié la conformité du contenu du
présent manuel avec le matériel et le logiciel qui y
sont décrits. Or, des divergences n'étant pas exclues,
nous ne pouvons pas nous porter garants pour la
conformité intégrale. Si l'usage du manuel devait
révéler des erreurs, nous en tiendrons compte et
apporterons les corrections nécessaires dès la
prochaine édition. Veuillez nous faire part de vos
suggestions.
Nous nous réservons le droit de modifier les
caractéristiques techniques.
Toute communication ou reproduction de ce support
d'informations, toute exploitation ou communication
de son contenu sont interdites, sauf autorisation
expresse. Tout manquement à cette règle est illicite et
expose son auteur au versement de dommages et
intérêts. Tous nos droits sont réservés, notamment
pour le cas de la délivrance d'un brevet ou celui de
l'enregistrement d'un modèle d'utilité.
C79000-G8972-C111
Copyright © Siemens AG 1997
All Rights Reserved
Siemens Aktiengesellschaft Elektronikwerk Karlsruhe
Printed in the Federal Republic of Germany

SIMATIC NET
CP 142-2
Manual C79000-B8976-C111/02

We would point out that the contents of this product documentation shall not become a part of or modify any prior or existing
agreement, commitment or legal relationship. The Purchase Agreement contains the complete and exclusive obligations of
Siemens. Any statements contained in this documentation do not create new warranties or restrict the existing warranty.
We would further point out that, for reasons of clarity, these operating instructions cannot deal with every possible problem arising
from the use of this device. Should you require further information or if any special problems arise which are not sufficiently dealt
with in the operating instructions, please contact your local Siemens representative.
General This device is electrically operated. In operation, certain parts of this device carry a dangerously high voltage.
WARNING! Failure to heed warnings may result in serious physical injury and/or material damage.
Only appropriately qualified personnel may operate this equipment or work in its vicinity. Personnel must be
familiar with all warnings and maintenance measures in accordance with these operating instructions.
Correct and safe operation of this equipment requires proper transport, storage and assembly as well as
careful operator control and maintenance.
Personnel qualification requirements
Qualified personnel as referred to in the operating instructions or in the warning notes are defined as persons who are familiar with
the installation, assembly, startup and operation of this product and who possess the relevant qualifications for their work, e.g.:
− Training in or authorization for connecting up, grounding or labeling circuits and devices or systems in accordance with current
standards in safety technology;
− Training in or authorization for the maintenance and use of suitable safety equipment in accordance with current standards in
safety technology;
− First Aid qualification.
!

B8976111/02 Contents
I-1
Contents
1 Introduction 1-1
1.1 General 1-2
1.1.1 Overview of the Chapters 1-2
1.1.2 General Information for the Reader 1-3
1.1.3 Requirements for Understanding the Manual 1-4
1.1.4 Sample Programs 1-5
1.1.5 Further Support and Hotline 1-5
2 Technical Description and Installation Guidelines 2-1
2.1 Overview of the Module 2-2
2.1.1 Introduction 2-2
2.1.2 Technical Specifications of the Module 2-3
2.1.3 Installing and Connecting the CP 142-2 2-4
2.1.4 Indicators and Operator Controls on the CP 142-2 2-6
2.1.4.1 Meaning of the Indicators and Operator Controls: 2-6
2.1.4.2 Status Display of the CP 142-2 (all group LEDs off) 2-7
2.1.4.3 Slave Display of the CP 142-2 (at least on group LED lit) 2-8
2.1.4.4 Meaning of theSET/DISPLAY Button 2-9
2.1.4.5 Slots Permitted for the CP 142-2 in the ET 200X Distributed I/O Station 2-9
2.1.4.6 Configuring the AS-Interface with the SET/DISPLAY Button 2-9
2.1.4.7 Types of Operation with the CP 142-2 2-11
3 Standard Operation of the CP 142-2 3-1
3.1 Addressing the CP 142-2 3-1
3.1.1 Addressing using the BM141/BM142 3-1
3.1.2 Addressing when using the BM147 3-1
3.2 How the User Program Addresses the AS-i Slaves 3-2
3.2.1 Addressing AS-i User Data 3-2
3.2.2 Accessing the AS-i User Data (BM141, BM142) 3-4
3.2.3 Access to the AS-i User Data (BM147) 3-5
3.3 Diagnostics and Reaction to Interrupts on the CP 142-2 3-6
3.3.1 Diagnostics and Reaction to Interrupts with the BM141/BM142 3-6
3.3.1.1 Interrupt Events 3-6
3.3.1.2 Structure of PROFIBUS DP Slave Diagnostics 3-7
3.3.2 Diagnostics and Reaction to Interrupts with the BM147 3-10
3.3.2.1 Overview 3-10
3.3.2.2 Interrupt Events 3-10
3.3.2.3 Sequence of Diagnostic Interrupt Servicing 3-11
3.3.2.4 Response to Interrupts in Various CP States 3-11
3.3.2.5 Local Data of the Diagnostic Organization Block (OB82) 3-12
3.3.2.6 Reading the Diagnostic Data Record DS1 3-13
3.3.2.7 Programming Example 3-14
4 CP 142-2 Extended Operation with FC “ASI_3422” 4-1
4.1 Overview of the Functions 4-1
4.1.1 Calling the Function 4-1
4.2 Interface for AS-i commands 4-7
4.2.1 The Commands Supported by the CP 142-2 4-7
4.2.1.1 Set_Permanent_Parameter 4-8
4.2.1.2 Get_Permanent_Parameter 4-8
4.2.1.3 Write_Parameter 4-9
4.2.1.4 Read_Parameter 4-9

B8976111/02 Contents
I-2
4.2.1.5 Store_Actual_Parameters 4-10
4.2.1.6 Set_Permanent_Configuration 4-10
4.2.1.7 Get_Permanent_Configuration 4-11
4.2.1.8 Store_Actual_Parameters 4-11
4.2.1.9 Read_Actual_Configuration 4-12
4.2.1.10 Set_LPS 4-12
4.2.1.11 Set_Offline_Mode 4-13
4.2.1.12 Set_Auto_Address 4-14
4.2.1.13 Set_Operation_Mode 4-14
4.2.1.14 Change_Slave_Address 4-15
4.2.1.15 Read Slave Status 4-16
4.2.1.16 Read Lists and Flags (Get_LPS, Get_LAS, Get_LDS, Get_Flags) 4-17
4.2.1.17 Read Total Configuration 4-19
4.2.1.18 Configure Total System 4-21
4.2.1.19 Write Parameter List 4-24
4.2.1.20 Read Parameter Echo List 4-25
4.2.1.21 Read Version ID 4-26
4.2.1.22 Read and Reset Slave Status 4-27
4.2.1.23 Read Slave ID 4-28
4.2.1.24 Read Slave I/O 4-28
5 Replacing a Defective Slave / Automatic Address Programming 5-1
6 Error Indicators on the CP 142-2 / Dealing with Errors 6-1
7 Configuring PROFIBUS DP When Using the BM141/BM142 7-1
A AS-Interface Protocol Implementation Conformance Statement (PICS)
B References
C Abbreviations

B8976111/02 AS-i Master Module CP 142-2
1-1
1 Introduction
This manual describes the functions and the programming of the CP 142-2. To fully understand this
manual, you should be familiar with the manual ‘AS-Interface Introduction and Basic Information’.
We recommend the following procedure when...
...You want a general overview of the
AS-Interface.
´ Read the manual ‘AS-Interface
Introduction and Basic Information'.
This manual contains general
information about the AS-Interface,
generally referred to as AS-i in this
manual.
...You want to install and start up the CP
142-2.
´ Chapter 2 Section 2.1 ‘Overview of the
Module’ and Chapter 3 ‘Standard
Operation of the CP 142-2’ contain the
information you require.
...You want to know how to program the
CP 142-2.
´ Read Chapters 3 and 4.
...you want to create a PLC program for
standard applications.
´ Chapter 3 contains all the information
you require about standard operation.
...you require additional information about
extended operation.
´ You will find the required information in
Chapter 4.

B8976111/02 AS-i Master Module CP 142-2
1-2
1.1 General
1.1.1 Overview of the Chapters
Chapter 1 Introduction
This chapter explains how to make the best use of the manual.
Chapter 2 Technical Description and Installation Guidelinesn
Chapter 2 provides you with an overview of the modes, installation and startup and the indicators and
operator controls of the CP 142-2.
Chapter 3 Standard Operation of the CP 142-2
Chapter 3 describes how to operate the CP 142-2 in the ET 200X distributed I/O system in standard
operation.
Chapter 4 CP 142-2 Extended Operation with FC “ASI_3422”
Chapter 4 describes the extended operation of the CP 142-2, that requires the
FC “ASI_3422” in the control program. In this type of operation, the AS-i slaves can be assigned
parameters or the slave addresses can be modified by the S7 program.
This mode is only possible with the BM147.
Chapter 5 Replacing a Defective Slave / Automatic Address Programming
Chapter 5 explains how to replace a failed AS-i slave quickly and simply.
Chapter 6 Error Indicators on the CP 142-2 / Dealing with Errors
This chapter explains the possible error indications on the CP 142-2 and explains how to deal with
them.
Chapter 7 PROFIBUS DP Configuration When Using the BM141/BM142
Chapter 7 contains additional information about DP configuration of the BM141/BM142.

B8976111/02 AS-i Master Module CP 142-2
1-3
1.1.2 General Information for the Reader
General symbols in the text:
 This symbol indicates an action for you to perform.
 This symbol highlights special features and dangers.

B8976111/02 AS-i Master Module CP 142-2
1-4
1.1.3 Requirements for Understanding the Manual
To fully understand the manual, you should already be familiar with the following:
± The manual ‘AS-Interface Introduction and Basic Information’.
± The manual 'ET 200X Distributed I/O System’

B8976111/02 AS-i Master Module CP 142-2
1-5
1.1.4 Sample Programs
The diskette shipped with this manual contains sample programs which will help you to program the
CP 142-2 when this is installed in a distributed ET 200X I/O system with preprocessing (for example
BM147).
1.1.5 Further Support and Hotline
Who to Contact If you have technical questions about using the product described
here, please contact your local Siemens representative.
The addresses are listed:
➢ in our catalog IK 10
➢ on the Internet (http://www.ad.siemens.de)
Frequently Asked
Questions Our customer support on the Internet provides useful information and
answers to frequently asked questions (FAQ). Under FAQ, you will find
information about our entire range of products.
The address of the A&D home page in the World Wide Web of the
Internet is as follows:http://www.ad.siemens.de/net
Hotline Our hotline is also available to deal with problems:
➢ Telephone:0911 - 895 - 7000
(outside Germany +49 - 911 - 895 - 7000)
➢ Telefax: 0911 - 895 - 7001
(outside Germany +49 - 911 - 895 - 7001)
➢ E-Mail: [email protected]
➢ Mailbox (BBS, analog/ISDN, 8N1):
0911 - 895 - 7100
(outside Germany +49 - 911 - 895 - 7100)

B8976111/02 AS-i Master Module CP 142-2
2-1
2 Technical Description and Installation Guidelines
This chapter outlines the performance of the CP 142-2, explains how to install the module and
introduces you to its basic functions.
You will learn the following:
±
How to install the CP 142-2.
±
Which modes are supported by the CP 142-2.


When handling and installing the module, please keep to the general guidelines for
handling electrostatically sensitive devices and follow the instructions in the ‘ET 200X
Distributed I/O System’ manual /4/.


Insert or remove modules only when the power is turned off.


Noise immunity/grounding
To ensure the noise immunity of the CP 142-2, the ET 200X distributed I/O system and
the AS-i power supply unit must be correctly grounded.


The CP 142-2 cannot be operated with all variants of the basic modules of the ET 200X
distributed I/O system. Please read the accompanying Product Information.


The AS-i power supply unit used must provide a low voltage, safely isolated from the
network. This safe isolation can be implemented according to the following
requirements:
± VDE 0100 Part 410 = HD 384-4-4 = IEC 364-4-41
(as functional extra-low voltage with safe isolation) or
± VDE 0805 = EN 60950 = IEC 950
(as safety extra-low voltage - SELV) or
± VDE 0106 Part 101

B8976111/02 AS-i Master Module CP 142-2
2-2
2.1 Overview of the Module
2.1.1 Introduction
The CP 142-2 module can be operated in the ET 200X distributed I/O system. It allows the
connection of an AS-i chain to the I/O device. The special feature of the ET 200X distributed I/O
system is its rugged construction complying with safety classes IP 65, IP 66 and IP 67.
AS-i cable
(4 x slaves)
Binary sensors and actuators
without slave ASIC
Active or passive
AS-Interface application module
Binary sensors and actuators
with slave ASIC
Active
AS-i appl. module
(with slave ASIC)
PROFIBUS-DP master
PROFIBUS PROFIBUS
ET 200X
CP 142-2
Round cable
Passive AS-i application module
(without slave ASIC)
Actuator or sensor
with direct connection
AS-i cable
adapter
= Slave ASIC
AS-i power
supply unit
Figure 2-1 Use of the Master Module CP 142-2 in the ET 200X
Components Supplied
The product CP 142-2 consists of the following:
1. CP 142-2 module
2. Product Information bulletin
The STEP 7 block FC “ASI_3422” required for extended operation of the CP 142-2 is shipped with
this manual.

B8976111/02 AS-i Master Module CP 142-2
2-3
2.1.2 Technical Specifications of the Module
The CP 142-2 module has the following characteristics:
Bus cycle time 5 ms with 31 slaves
Configuration of the AS-Interface with buttons on the front panel
Supported AS-i master profiles M0 for operation with the bus modules
BM141/BM142
M0/M1 when using the bus module BM147
and FC “ASI_3422”
Connection of the AS-i cable M12 male connector (integrated on the CP
142-2)
Address range 16 input bytes and 16 output bytes
Power supply for the CP 142-2 (via
electronics/ sensor power supply of the ET
200X) DC 24 V
Current consumption from electronics/
sensor power supply max. 60 mA
Load voltage of the ET 200X not required for the CP 142-2
Power supply from the AS-i cable
Current consumption from the AS-i cable according to the AS-i specification max. 100 mA
Type of protection IP65, IP66, IP67
(with the cover of the button in place)
Ambient conditions
• Operating temperature 0 to 55°C
• Transportation and storage temperature -40°C to +70°C
• Relative humidity max. 95% at +25°C
Construction
• Module format ET 200X-compatible
• Dimensions (W x H x D) in mm 87 x 110 x 63
• Weight approx. 310 g
Table 2-1 Technical Specifications

B8976111/02 AS-i Master Module CP 142-2
2-4
2.1.3 Installing and Connecting the CP 142-2
The assembly of the module and connection to the ET 200X distributed I/O system is the same as for
other expansion modules. For more detailed information, please refer to the “ET 200X Distributed I/O
System” manual /4/.
There are several ways of attaching to the AS-i bus and two possible methods are described here.
±
±
Direct attachment to the AS-i cable using the AS-Interface adapter M12
You attach an AS-Interface adapter M12 to the AS-i cable to change from the flat cable to the
M12 connection and screw this directly to the connector on the CP 142-2 . Follow the
instructions in the installation guide shipped with the adapter. Remember the following point:
The AS-Interface adapter M12 is often the end of an AS-i chain. In this case, insert the rubber
stopper in the open end of the adapter as explained in the installation guide.
Before you screw the AS-Interface adapter M12 in place, make sure that after it is screwed to
the connector of the CP 142-2, the AS-i cable exits downwards and not towards the neighboring
module. If the cable does exit towards the neighboring module, rotate the connection in the
adapter through 90° as explained in the installation guide.
Figure 2-2 Direct Attachment of the AS-i Cable to the CP 142-2

B8976111/02 AS-i Master Module CP 142-2
2-5
±
Attaching to the AS-i cable at a distance from the AS-Interface adapter
The AS-Interface adapter M12 is first connected to the AS-i shaped cable. A round (sensor)
cable with an M12 male and female connector is used to attach the CP 142-2.
When laying the AS-i cable, make sure that there is adequate strain relief particularly at the end
connected to the CP 142-2.
The product information bulletin contains ordering data for the AS-Interface adapter M12.
Figur
e 2-3 Connecting the CP 142-2 to the AS-i Cable via a Round Cable


Make sure that you do not cross-thread the socket when you screw it on to the module,
otherwise the thread of the connector on the module can be damaged.
Figure 2-4 AS-i Connector on the CP 142-2

B8976111/02 AS-i Master Module CP 142-2
2-6
2.1.4 Indicators and Operator Controls on the CP 142-2
Figure 2.5 shows the front panel of the CP 142-2 with its indicators and operator controls.The front
connector for attaching the AS-i cable is at the lower right of the front panel.
To the left of the connector is the SET/DISPLAY button under a screw-on cover.
Figure 2-5 Front View of the CP 142-2
2.1.4.1 Meaning of the Indicators and Operator Controls:
On the front panel of the CP 142-2, there is a line of 8 LEDs. The upper three LEDs are the group
display. The meaning of the lower five LEDs depends on the status of the group display, as follows:
±
If no LED is lit in the group display, the lower five 5 LEDs indicate the status of the CP 142-2
(status display of the CP 142-2). The label to left of the LEDs then applies. The default display is
the status display.
±
If one or more of the LEDs in the group display are it, the lower five LEDs indicate the slaves
detected or active on the AS-Interface (slave display of the CP 142-2); the label to right of the
LEDs then applies.
You can toggle the display with the SET/DISPLAY button. The SET/DISPLAY button is also required
to configure the CP 142-2. If the button is not pressed for approximately 10 minutes, the CP 142-2
automatically switches to the status display.

B8976111/02 AS-i Master Module CP 142-2
2-7
2.1.4.2 Status Display of the CP 142-2 (all group LEDs off)
SF (red) System error. The LED is lit when:
±
the CP 142-2 is in the protected mode and an AS-i configuration error
has occurred (for example slave failed)
±
the CP 142-2 detects an internal fault (for example EEPROM defective)
±
The CP 142-2 cannot change to the mode requested with a control
button (for example a slave exists with address 0).
±
Briefly when changing to the protected mode
±
When the CP is in the protected mode in the offline phase
APF (red) AS-i Power Fail. This indicates that the voltage supplied to the AS-i cable by
the AS-i power supply unit is too low or there is a complete power outage.
CER (yellow) Configuration Error. The LED is lit when the slave configuration detected on
the AS-i cable deviates from the desired configuration set on the CP 142-2
(LPS).
The CER indicator is lit in the following situations:
±
when a configured AS-i slave does not exist on the AS-i cable (for
example slave failed)
±
when a slave exists on the AS-i cable but it has not been configured
±
when a connected slave has configuration data (I/O configuration, ID
code) that are different from those of the slave configured on the
CP 142-2
±
briefly when changing to the protected mode
±
When the CP is in the offline phase.
AUP (green) Autoprog available. In the protected mode of the CP 142-2, this indicates
that automatic address programming of a slave is possible. Automatic
address programming makes it easier to replace a defective slave on the
AS-i cable (for more detailed information, see Chapter 5).
CM (yellow) Configuration Mode. This LED indicates the mode.
Indicator lit: configuration mode
Indicator off: protected mode
The configuration mode is only required when installing and starting up the CP 142-2. In the
configuration mode, the CP 142-2 activates all connected slaves and exchanges data with them. For
more detailed information about the configuration mode / protected mode, refer to Section 2.1.4.6.

B8976111/02 AS-i Master Module CP 142-2
2-8
2.1.4.3 Slave Display of the CP 142-2 (at least on group LED lit)
The display of the detected or active slaves is in groups of five. The upper three group LEDs indicate
which group of five is displayed. The lower five LEDs indicate the slaves within the group. You
change to the slave display mode by pressing the SET/DISPLAY button. By pressing the
SET/DISPLAY button again, you move from group to group.
±
If the CP 142-2 is in the configuration mode, it indicates all detected slaves.
±
If the CP 142-2 is in the protected mode, it indicates all active slaves. Failed or existing but
unconfigured slaves are indicated by the corresponding LED flashing.
The module returns to the status display in the following situations:
±
After you have displayed the last group (slave 30, 31) and pressed the SET/DISPLAY button.
±
If the SET/DISPLAY button is not pressed for a longer period (approximately 10 minutes).
Exam
p
le 1:
Dis
p
la
y
showin
g
that slaves with
addresses 5, 6 and 9 are active.
Exam
p
le 2:
Dis
p
la
y
showin
g
that slaves with
addresses 20, 21 and 22 are active.
SF
APF
CER
AUP
CM
4 9 14 19 24 29
3 8 13 18 23 28
2 7 12 17 22 27
1 6 11 16 21 26 31
0 5 10 15 20 25 30
SF
APF
CER
AUP
CM
4 9 14 19 24 29
3 8 13 18 23 28
2 7 12 17 22 27
1 6 11 16 21 26 31
0 5 10 15 20 25 30
Figure 2-6 Display of the Active AS-i Slaves on the CP Front Panel

B8976111/02 AS-i Master Module CP 142-2
2-9
2.1.4.4 Meaning of theSET/DISPLAY Button
The SET/DISPLAY button is used to change to the next display and to switch between the
configuration mode and the protected mode.
±
Pressing the SET/DISPLAY button briefly (less than 5 seconds) changes the display.
±
Pressing the SET/DISPLAY button for longer than 5 seconds changes the module from the
configuration mode to the protected mode and vice-versa (see 2.1.4.6).
The SET/DISPLAY button is to the left of the AS-i connector and is protected by a screw-on cover.
Access to the button is only possible when the cover is removed. After using the button, make sure
that you replace the cover again, otherwise the degree of protection is not guaranteed. The button is
in a recess to prevent it being pressed accidentally. It can be pressed using a ball-point pen or a
similar thin blunt instrument.
2.1.4.5 Slots Permitted for the CP 142-2 in the ET 200X Distributed I/O Station
The CP 142-2 can be operated in any slot in the ET 200X distributed I/O station.
The number of CP 142-2 modules that can be operated at the same time in the ET 200X distributed
I/O station depends on the basic module being used:
±
With the BM141 and BM142 basic modules, you can operate a maximum of six CP 142-2
modules at the same time.
±
With the basic module BM147, you can operate a maximum of seven CP 142-2 modules at the
same time.
2.1.4.6 Configuring the AS-Interface with the SET/DISPLAY Button
Recognizing the display state
The CP 142-2 distinguishes between two operating modes on the AS-Interface:
±
Configuration mode (“CM” LED lit)
±
Protected mode (“CM” LED not lit)
If you press the SET/DISPLAY button for more than 5 seconds, you trigger a mode change. After
approximately 5 seconds, the three LEDs of the group display start to flash. The mode changes when
you release the button.