Pilz PSSu K S RS232 Modbus ASCII User manual

PSSu K S RS232 Modbus ASCII
Operating Manual 1001689-EN-05
}Decentralised system PSSuniversal I/O

Preface
This document is a translation of the original document.
All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made
for internal purposes. Suggestions and comments for improving this documentation will be
gratefully received.
Source code from third-party manufacturers or open source software has been used for
some components. The relevant licence information is available on the Internet on the Pilz
homepage.
Pilz®, PIT®, PMI®, PNOZ®, Primo®, PSEN®, PSS®, PVIS®, SafetyBUS p®,
SafetyEYE®, SafetyNET p®, the spirit of safety® are registered and protected trademarks
of Pilz GmbH & Co. KG in some countries.
SD means Secure Digital

Contents
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Section 1 Introduction 5
1.1 Validity of documentation 5
1.1.1 Retaining the documentation 5
1.1.2 Terminology: System environment A and B 5
1.2 Definition of symbols 6
Section 2 Overview 7
2.1 Module structure 7
2.2 Module features 7
2.3 Front view 8
Section 3 Safety 9
3.1 Intended use 9
3.2 Safety regulations 9
3.2.1 Use of qualified personnel 9
3.2.2 Warranty and liability 10
3.2.3 Disposal 10
Section 4 Function description 11
4.1 Block diagram 11
4.2 Module features 11
4.2.1 Function description 11
4.2.2 Integrated protection mechanisms 12
4.3 Data exchange 12
4.4 Configuration 12
4.4.1 Interface parameters 12
4.4.2 Receive buffer threshold 13
Section 5 Installation 14
5.1 General installation guidelines 14
5.1.1 Dimensions 14
5.2 Install compact module 15
Section 6 Wiring 17
6.1 Interface configuration 17
6.1.1 RS232 interface 17
Section 7 Operation 18
7.1 Messages 18
7.2 Display elements 18
7.2.1 Display element for operational readiness 18
7.2.2 Display element for module error 19
7.2.3 Display elements for data transmission 19

Contents
Operating Manual PSSu K S RS232 Modbus ASCII
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Section 8 Technical details 20
Section 9 Order reference 22
9.1 Product 22
9.2 Accessories 22

Introduction
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1 Introduction
1.1 Validity of documentation
This documentation is valid for the product PSSu K S RS232 Modbus ASCII. It is valid until
new documentation is published.
This operating manual explains the function and operation, describes the installation and
provides guidelines on how to connect the product.
1.1.1 Retaining the documentation
This documentation is intended for instruction and should be retained for future reference.
1.1.2 Terminology: System environment A and B
The PSSu system can be used in two different system environments. The module's applic-
ation area is described in the chapter "Intended Use" of the manual.
The distinction is made between
}PSSu in system environment A
}PSSu in system environment B
The distinction is based on the application area of the PSSu system.
PSSu in system environment A may be used in the
}Decentralised system PSSu I/O
}Not in the automation system PSS 4000
PSSu in system environment B may be used in the
}Automation system PSS 4000, e.g. with
– Decentralised system PSSu I/O with SafetyNET p
– Control system PSSu PLC
– Control system PSSu multi
The module PSSu K S RS232 Modbus ASCII is exclusively for use in system environment
B (automation system PSS 4000).

Introduction
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1.2 Definition of symbols
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 preventive 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 dam-
aged and also provides information on preventive measures that can be
taken. It also highlights areas within the text that are of particular import-
ance.
INFORMATION
This gives advice on applications and provides information on special fea-
tures.

Overview
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2 Overview
2.1 Module structure
The module combines the function unit (inputs or outputs, interfaces) and connection levels
in one housing.
Wiring is via Sub-D female and male connectors
2.2 Module features
The product has the following features:
}Serial interface: RS 232
}Communication channels: 2 (Tx/Rx, full duplex)
}Configurable transmission rates
}Receive buffer: 1023 Byte
}Send buffer: 127 Byte
}Max. number per system: 6
}Data exchange based on the Modbus ASCII protocol
}LEDs for:
– Operational readiness
– Module error
– Data transmission
}For standard applications in system environment B (automation system PSS 4000)

Overview
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2.3 Front view
RS232
Modbus
ASCII
PSSu K S RS232
Modbus ASCII
1
2
3
4
Key:
}1: Labelling strip with:
– 2D code
– Order Number
– Serial Number
– Hardware version number
}2: Name of compact module
}3: D-Sub connector (male) X1
}4: LEDs for status display and module diagnostics

Safety
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3 Safety
3.1 Intended use
The module provides a serial interface. It is designed for communication in non-safety-re-
lated applications in system environment B (automation system PSS 4000).
Intended use includes making the electrical installation EMC-compliant. Please refer to the
guidelines stated in the "PSSuniversal Installation Manual". The module is designed for use
in an industrial environment. It is not suitable for use in a domestic environment, as this can
lead to interference.
The following is deemed improper use in particular:
}Any component, technical or electrical modification to the module
}Use of the module outside the areas described in this manual
}Any use of the module that is not in accordance with the technical details.
INFORMATION
The module is supported by PAS4000 from version 1.0.0. We recommend
that you always use the latest version (download from www.pilz.de).
3.2 Safety regulations
3.2.1 Use of qualified personnel
The products may only be assembled, installed, programmed, commissioned, operated,
maintained and decommissioned by competent persons.
A competent person is someone who, because of their training, experience and current pro-
fessional activity, has the specialist knowledge required to test, assess and operate the
work equipment, devices, systems, plant and machinery in accordance with the general
standards and guidelines for safety technology.
It is the company’s responsibility only to employ personnel who:
}Are familiar with the basic regulations concerning health and safety / accident preven-
tion
}Have read and understood the information provided in this description under "Safety"
}And have a good knowledge of the generic and specialist standards applicable to the
specific application.

Safety
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3.2.2 Warranty and liability
All claims to warranty and liability will be rendered invalid if
}The product was used contrary to the purpose for which it is intended
}Damage can be attributed to not having followed the guidelines in the manual
}Operating personnel are not suitably qualified
}Any type of modification has been made (e.g. exchanging components on the PCB
boards, soldering work etc.).
3.2.3 Disposal
}In safety-related applications, please comply with the mission time TM in the safety-re-
lated characteristic data.
}When decommissioning, please comply with local regulations regarding the disposal of
electronic devices (e.g. Electrical and Electronic Equipment Act).