DAS_for_Siemens_3964_for_UNIX_______________________ Release Notes March 1997 This document contains the release notes for DAS for Siemens 3964 Version 3.1 software and documentation on UNIX systems. Please read this document before using the product and consult it before reporting problems to DIGITAL. Revision/Update Information: This is a new document for the current release. Software Version: Version 3.1 Digital Equipment Corporation Maynard, Massachusetts ________________________________________________________________ March 1997 © Digital Equipment Corporation 1997. All Rights Reserved. Possession, use, or copying of the software described in this documentation is authorized only pursuant to a valid written license from DIGITAL or an authorized sublicensor. Digital Equipment Corporation makes no representations that the use of its products in the manner described in this publication will not infringe on existing or future patent rights, nor do the descriptions contained in this publication imply the granting of licenses to make, use, or sell equipment or software in accordance with the description. The postpaid Reader's Comments forms at the end of this document request your critical evaluation to assist in preparing future documentation. The following are trademarks of Digital Equipment Corporation: Alpha AXP, BASEstar, DEC, DECmessageQ, DECnet, DECnet-DOS, DECosap, DEComni, DIGITAL, DIGITAL UNIX, FMS, LN03, MicroVAX, NAS, OpenVMS, OpenVMS Alpha, PATHWORKS, PDAS, Rdb/VMS, ReGIS, ThinWire, TK, ULTRIX, VAX, VAXcluster, VAX COBOL, VAX FORTRAN, VAX Pascal, VAX RMS, VMS/ULTRIX Connection, VT, and the DIGITAL logo. The following are third-party trademarks: Excel is a registered trademark of Microsoft Corporation. IBM is a registered trademark of IBM Corp. INGRES is a trademark of Ingres Corp. LOTUS 1-2-3 is a registered trademark of Lotus Development Corp. MS, Microsoft, and MS-DOS are registered trademarks of Microsoft Corporation. Network File System and NFS are trademarks of Sun Microsystems, Inc. ORACLE is a trademark of Oracle Corp. PostScript is a registered trademark of Adobe Systems Incorporated. SINEC AP, SINEC H1, SICOMP, Simatic, SINEC, SINUMERIK and SIROTEC are registered trademarks of Siemens, AG. UNIX is a registered trademark licensed exclusively by X /Open Company Ltd. Windows, Windows NT and Windows 95 are trademarks of Microsoft Corporation. Wonderware InTouch is a registered trademark of Wonderware Corporation. X/Open is a registered trademark of the X/Open Company Limited This document was prepared using VAX DOCUMENT, Version 2.1. _________________________________________________________________ Contents 1 New Features 2 Restrictions 2.1 No Data Segmentation Support (3964[R]_RK512 Protocol)........................................ 2-1 2.2 No Data Segmentation Support (3964[R] Protocol).. 2-1 3 Known Problems 3.1 Synchronization Loss............................. 3-1 iii 1 _________________________________________________________________ New Features For a brief description of the features provided by DAS for Siemens 3964 for DIGITAL UNIX Version 3.1, refer to your Software Product Description. New Features 1-1 2 _________________________________________________________________ Restrictions 2.1 No Data Segmentation Support (3964[R]_RK512 Protocol) The RK-512[R] protocol (application profiles 33 and 34) does not support data segmentation in this release: the maximum size of the network Protocol Data Unit (PDU) is 128. This limits the lenght of the application data that can be trasferred with a call to: o 122 for a read operation performed using the 3964_RK512 protocol o 121 for a read operation performed using the 3964R_RK512 protocol o 116 for a write operation performed using the 3964_RK512 protocol o 115 for a write operation performed using the 3964R_ RK512 protocol 2.2 No Data Segmentation Support (3964[R] Protocol) The 3964[R] protocol (application profiles 31 and 32) supports a low level segmentation with ETB ETX data delimiters. Application segmentation is not supported: the maximum PDU size is configurable at the application level. Restrictions 2-1 3 _________________________________________________________________ Known Problems 3.1 Synchronization Loss The Siemens 3964 protocol is a time dependent protocol: heavy applications and/or heavy system load can rarely cause a violation of the internal protocol timeouts. In this situation, the DAS: 1. Performs an internally generated disconnection 2. Deliveries an abort indication to the application. To re-establish the connection, the application needs to resubmit a connection request. Known Problems 3-1