Pilz PSSuniversal User guide

System Description — No. 21256-EN-04
Programmable control systems PSS®
PSSuniversal
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This document is a translation of the original document.
All rights to this documentation are reserved by Pilz GmbH & Co. KG. Co ies may be made
for internal ur oses.
Suggestions and comments for im roving this documentation will be gratefully received.
Pilz®, PIT®, PMI®, PNOZ®, Primo®, PSEN®, PSS®, PVIS®, SafetyBUS ®, SafetyEYE®,
SafetyNET ®, the s irit of safety® are registered and rotected trademarks of
Pilz GmbH & Co. KG in some countries.
SD means Secure Digital.
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Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [email protected] 1
Contents
Contents
Contents Page
Chapter 1 Introduction
1.1 Validity of the documentation 1-1
1.2 Overview of the documentation 1-2
1.3 Definition of symbols 1-3
Chapter 2 Overview
2.1 General 2-1
2.2 Objective of the PSSu system 2-2
2.3 Features of the PSSu system 2-3
2.4 System software for PSSu systems 2-4
Chapter 3 Safety
3.1 General guidelines 3-1
3.2 Intended use 3-2
3.3 Use of qualified personnel 3-3
3.4 Failsafe inputs/outputs 3-4
Chapter 4 Basics
4.1 Structure of a PSSu system 4-1
4.2 Module layout 4-3
4.3 Module descriptions 4-5
4.4 Module bus 4-7
4.5 Connections on the base modules 4-9
4.5.1 Connection levels on input/output mod-
ules
4-9
4.5.2 Colour marking on the connection levels 4-10
4.6 Connections on the compact modules 4-11
4.7 Maximum system expansion 4-12
4.7.1 SafetyBUS p and standard bus systems 4-13
4.7.2 Number of modules and number of inputs/
outputs on a PSSu system
4-14
4.7.3 Maximum current load 4-15
4.7.3.1 Maximum current load capacity on the
supply voltage modules
4-15
4.7.3.2 Maximum current load capacity based on
temperature
4-16
4.8 Device description files 4-17
4.9 Local enable principle 4-19
4.10 Slots on a PSSu system 4-21
4.11 Addressing the modules 4-22
4.11.1 Addressing principle 4-22
4.11.2 Addresses and bit requirement of a PSSu
system
4-23
4.11.3 Status bytes 4-24

Contents
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2
4.11.4 Configurations that impact the address
and bit requirement
4-25
4.11.5 Overview of the modules' bit requirement 4-26
4.11.6 Example: Bit requirement and addressing 4-29
4.11.7 Optimisation of module layout 4-32
4.12 Supply voltage and insulation 4-39
4.13 Supply groups 4-42
4.14 Reaction times of the PSSuniversal 4-44
4.14.1 Scan time of a PSSu system 4-45
4.14.2 Input/output processing time 4-45
4.14.3 Input reaction time 4-46
4.14.4 Output reaction time 4-47
Chapter 5 PSSuniversal on SafetyBUS p
5.1 Configure PSSu for SafetyBUS p 5-1
5.2 Circuit examples 5-3
5.2.1 1-channel actuator with feedback loop and
local enable
5-3
5.2.2 2-channel actuator with feedback loop and
local enable
5-6
Chapter 6 Commissioning
6.1 Procedure 6-1
6.1.1 Assembly of the PSSu systems in the
PSSuniversal Assistant
6-2
6.1.2 Programming in the SafetyBUS p
Configurator
6-3
Chapter 7 Diagnostics
7.1 Diagnostic data of electronic modules 7-1
7.2 Head module's error stack 7-4
Chapter 8 Appendix
8.1 Glossary 8-1
8.2 Modules' hexadecimal code 8-5

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Telephone: [phone], Telefax: [phone], E-Mail: [email protected] 1-1
1.1 Validity of the documentation
1 Introduction
11000IntroductionIntroduction1-1.1Validity of the documentation1100Validity of the documentation1-][Einführun g PSSu Gül tigkeit Sys A
This documentation is valid for PSSu systems in system environment A.
A PSSu system in system environment A may be used in the
Decentralised system PSSu I/O with SafetyBUS p
Decentralised system PSSu I/O with ST fieldbuses such as CANopen,
DeviceNet
Not in the automation system PSS 4000
It is valid until new documentation is published.
The latest documentation is always enclosed with the product.

1.2 Overview of the documentation
1 Introduction
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1-2
1.2Overview of the documentation1200Overview of the documentation1-][Einfhrung Sys bersicht
1 Introduction
The introduction is designed to familiarise you with the contents, struc-
ture and specific order of this system description.
2 Overview
This chapter contains a brief description of what constitutes a PSSu sys-
tem.
3 Safety
This chapter must be read as it contains important information on safety
regulations.
4 Basics
This chapter describes the PSSu system as a whole and provides con-
figuration guidelines.
5 PSSu systems on SafetyBUS p
This chapter shows how the PSSu systems are connected to
SafetyBUS p.
6 Commissioning
This chapter describes the commissioning process step-by-step and
explains the aids that are available.
7 Diagnostics
This chapter contains a description of the available diagnostic proce-
dures.
8 Appendix
The appendix contains information in table format.

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1.3 Definition of symbols
1 Introduction
1.3Defi nition of symb ols1300Defi nition of symb ols1-Einfhrung Zeichen
Information that is particularly important is identified as follows:
DANGER!
This warning must be heeded! It warns of a hazardous situation
that poses an immediate threat of serious injury and death and
indicates preventive measures that can be taken.
WARNING!
This warning must be heeded! It warns of a hazardous situation
that could lead to serious injury and death and indicates preven-
tive measures that can be taken.
CAUTION!
This refers to a hazard that can lead to a less serious or minor
injury plus material damage, and also provides information on
preventive measures that can be taken.
NOTICE
This describes a situation in which the product or devices could
be damaged and also provides information on preventive meas-
ures that can be taken.
INFORMATION
This gives advice on applications and provides information on
special features, as well as highlighting areas within the text that
are of particular importance.

1 Introduction
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1-4

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2.1 General
2Overview
22000OverviewOverview2-2.1General2100General2-][Uebersicht PSSu-System Sys A
A PSSu system is assembed from a variety of modules, to suit the func-
tions required. The modular structure makes it easier to react to modifi-
cations and adjustments.
The scope of a PSSu system can also be adapted retrospectively, e.g.
by
Extending the number of I/Os
Modifying the I/O technology
(e.g. by using relay outputs instead of semiconductor outputs)
Adding I/O functions
(e.g. by retrospectively adding analogue evaluation, counter func-
tions, temperature evaluation)
PSSu systems can be assembled for
Safety-related tasks
Module selection must be based on failsafe modules (FS modules).
Non-safety-related tasks
Standard modules (ST modules) may be selected.
Safety-related and non-safety-related tasks
The PSSu system can be assembled using a mixture of FS and ST
modules.
SafetyBUS p is the preferred system to use for safety-related networked
tasks.
Data transfer via SafetyBUS p is based on CAN technology. The safety
of the data transfer is achieved through the protocol. The protocol in-
cludes the following security mechanisms:
Formation of CRC sums
Echo mode
Connection tests
Addressing tests
Time monitoring functions

2.2 Objective of the PSSu system
2Overview
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2-2
2.2Objective of the PSSu system2200Objective of the PSSu system2-][Uebersicht Zie lsetzu ng Sys A
The objective in using PSSu systems is to achieve the following:
Standard and safety in one product
Multifunctionality
Function and performance range tailored exactly to the application
Flexibility and expandability
Less work involved in installation, commissioning and maintenance
Greater availability
Uncomplicated control of safety-related systems
Standardised functionality for safety-related components