[精品]asc_pre.pdf

Protocol Manual ASCII Hilscher Gesellschaft für Systemautomation mbH Rheinstra?e 78 D-65795 Hattersheim Germany Tel. +49 (0) 6190/9907-0 Fax. +49 (0) 6190/9907-50 Sales: +49 (0) 6190/9907-0 Hotline and Support: +49 (0) 6190/9907-99 e-mail: hilscher@ Web: List of Revision Index Date 7 10.04.96 Version CIF 10: 2.101 CIF 30: 2.200 Chapter all Revision translation from german manual 2 Although this protocol implementation has been developed with great care and intensively tested, Hilscher Gesellschaft für Systemautomation mbH cannot guarantee the suitability of this protocol implementation for any purpose not confirmed by us in writing. Guarantee claims shall be limited to the right to require rectification. Liability for any damages which may have arisen from the use of this protocol implementation or its documentation shall be limited to cases of intent. We reserve the right to modify our products and their specifications at any time in as far as this contributes to technical progress. The version of the manual supplied with the protocol implementation applies. Copyright * Hilscher Gesellschaft für Systemautomation mbH * Hotline/Support: +49 (0) 6190/9907-99 * Pr:ASC#7E Table of Contents 3 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Specification and Protocol Fundamentals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Definition of the Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Definition of the Telegram Begin and End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 Definition of the Acknowledgement T