Table of Contents
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December 2001
8 Data Interfaces
8.1 Introduction ...................................................................................... 8 – 3
8.1.1 Principles of Data Transfer ........................................................ 8 – 4
8.1.2 Data Transfer Check: Handshaking ........................................... 8 – 8
8.2 TNC Data Interfaces ......................................................................... 8 – 9
8.2.1 General Information ................................................................... 8 – 9
8.2.2 RS-232-C/V.24 Interface ............................................................ 8 – 9
8.2.3 RS-422/V.11 Interface ............................................................. 8 – 12
8.3 Configuration of Interfaces ........................................................... 8 – 14
8.3.1 Control Characters ................................................................... 8 – 14
8.3.2 Selection of Interfaces and Operating Modes ......................... 8 – 15
8.3.3 Configuration of Interfaces ...................................................... 8 – 16
8.4 Data Transmission Protocols ........................................................ 8 – 20
8.4.1 Selection of Transmission Protocols ....................................... 8 – 20
8.4.2 Standard Transmission Protocol .............................................. 8 – 21
8.4.3 Transmission Protocol with Block Check Character ................ 8 – 23
8.4.4 LSV2 Transmission Protocol .................................................... 8 – 27
8.5 Saving/Reading Files ..................................................................... 8 – 28
8.6 Data Transfer by PLC ..................................................................... 8 – 30
8.6.1 Settings ................................................................................... 8 – 30
8.6.2 PLC Modules ........................................................................... 8 – 30
8.7 External Programming .................................................................. 8 – 42
8.8 Ethernet Interface (Option) ........................................................... 8 – 43
8.8.1 Hardware ................................................................................. 8 – 43
8.8.2 Software .................................................................................. 8 – 44
8.9 Protection Against Data Tampering............................................. 8 – 49
8 – 1
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