IO-Link Safety System Extensions Specification Version 1.0 April 2017 Order No: 10.092 IO-Link Safety – System Extensions V1.0 _________________________________________________________________________________________________________ File name: IO-Link_Safety_System-Extensions_10092_V10_Apr17.doc This specification has been prepared by the IO-Link Safety technology subgroup. It achieved a concept approval by TÜV-SÜD. Any comments, proposals, requests on this document are appreciated through the IO-Link CR database www.io-link-projects.com. Please provide name and email address. Login: IOL-Safety10 Password: Report Important notes: NOTE 1 The IO-Link Community Rules shall be observed prior to the development and marketing of IO-Link products. The document can be downloaded from the www.io-link.com portal. NOTE 2 Any IO-Link device shall provide an associated IODD file. Easy access to the file and potential updates shall be possible. It is the responsibility of the IO-Link device manufacturer to test the IODD file with the help of the IODD-Checker tool available per download from www.io-link.com. NOTE 3 Any IO-Link devices shall provide an associated manufacturer declaration on the conformity of the device with this specification, its related IODD, and test documents, available per download from www.io-link.com. Disclaimer: The attention of adopters is directed to the possibility that compliance with or adoption of IO-Link Community specifications may require use of an invention covered by patent rights. The IO-Link Community shall not be responsible for identifying patents for which a license may be required by any IO-Link Community specification, or for conducting legal inquiries into the legal validity or scope of those patents that are brought to its attention. IO- Link Community specifications are prospective and advisory only. Prospective users are responsible for protecting themselves against liability for infringement of patents. The information contained in this document is subject to change without notice. The material in this document details an IO-Link Community specification in accordance with the license and notices set forth on this page. This document does not represent a commitment to implement any portion of this specification in any company's products. WHILE THE INFORMATION IN THIS PUBLICATION IS BELIEVED TO BE ACCURATE, THE IO- LINK COMMUNITY MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL INCLUDING, BUT NOT LIMITED TO ANY WARRANTY OF TITLE OR OWNERSHIP, IMPLIED WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR PARTICULAR PURPOSE OR USE. In no event shall the IO-Link Community be liable for errors contained herein or for indirect, incidental, special, consequential, reliance or cover damages, including loss of profits, revenue, data or use, incurred by any user or any third party. Compliance with this specification does not absolve manufacturers of IO-Link equipment, from the requirements of safety and regulatory agencies (TÜV, BIA, UL, CSA, etc.). ® is registered trade mark. The use is restricted for members of the IO-Link Community. More detailed terms for the use can be found in the IO-Link Community Rules on www.io-link.com. Conventions: In this specification the following key words (in bold text) will be used: may: indicates flexibility of choice with no implied preference. should: indicates flexibility of choice with a strongly preferred implementation. shall: indicates a mandatory requirement. Designers shall implement such mandatory requirements to ensure interoperability and to claim conformity with this specification. Publisher: IO-Link Community Haid-und-Neu-Str. 7 76131 Karlsruhe Germany Phone: +49 721 / 96 58 590 Fax: +49 721 / 96 58 589 E-mail: [email protected] Web site: www.io-link.com © No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. _________________________________________________________________________________________________________ © Copyright IO-Link Community 2017 - All Rights Reserved Page 2 of 160 IO-Link Safety – 3 – V1.0 CONTENTS 0 Introduction ................................................................................................................... 12 0.1 General ................................................................................................................. 12 0.2 Patent declaration ................................................................................................. 13 1 Scope ............................................................................................................................ 14 2 Normative references .................................................................................................... 15 3 Terms, definitions, symbols, abbreviated terms and conventions ................................... 16 3.1 Common terms and definitions .............................................................................. 16 3.2 IO-Link Safety: Additional terms and definitions .................................................... 19 3.3 Symbols and abbreviated terms ............................................................................ 20 3.4 Conventions .......................................................................................................... 21 3.4.1 Behavioral descriptions.................................................................................. 21 3.4.2 Memory and transmission octet order ............................................................ 21 4 Overview of IO-Link Safety ............................................................................................ 22 4.1 Purpose of the technology and feature levels ........................................................ 22 4.1.1 Base IO-Link Safety technology ..................................................................... 22 4.1.2 From "analog" and "switching" to communication ........................................... 23 4.1.3 Minimized paradigm shift from FS-DI to FS-Master ........................................ 24 4.1.4 Following the IO-Link paradigm (SIO vs. OSSDe) .......................................... 24 4.1.5 Port class B (Classic and Combi) ................................................................... 26 4.1.6 "USB-Master" with safety parameterization .................................................... 27 4.1.7 Interoperability matrix of safety devices ......................................................... 27 4.2 Positioning within the automation hierarchy .......................................................... 28 4.3 Wiring, connectors, and power supply ................................................................... 29 4.4 Relationship to IO-Link ......................................................................................... 29 4.5 Communication features and interfaces ................................................................ 29 4.6 Parameterization ................................................................................................... 29 4.7 Role of FS-Master and FS-Gateway ...................................................................... 30 4.8 Mapping to upper level systems ............................................................................ 30 4.9 Structure of the document ..................................................................................... 30 5 Extensions to the Physical Layer (PL)............................................................................ 31 5.1 Overview .............................................................................................................. 31 5.2 Extensions to PL services ..................................................................................... 31 5.2.1 PL_SetMode .................................................................................................. 31 5.2.2 PL_Ready ...................................................................................................... 31 5.3 Transmitter/receiver .............................................................................................. 32 5.3.1 Assumptions for the expansion to OSSDe ...................................................... 32 5.3.2 OSSDe specifics ............................................................................................ 32 5.3.3 Start-up of an FS-Device (Ready pulse) ......................................................... 35 5.3.4 Electric characteristics of a receiver in FS-Device and FS-Master.................. 35 5.4 Electric and dynamic characteristics of an FS-Device ........................................... 36 5.5 Electric and dynamic characteristics of an FS-Master port (OSSDe) ..................... 38 5.6 FS-Master port FS-DI interface ............................................................................. 39 5.7 Wake-up coordination ........................................................................................... 40 5.8 Fast start-up ......................................................................................................... 40 5.9 Power supply ........................................................................................................ 40 IO-Link Safety – 4 – V1.0 5.10 Medium ................................................................................................................. 41 5.10.1 Constraints ...................................................................................................