HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 648)

01.98
TNC 407/TNC 415/TNC 425 1 Introduction 8-1
8
Data Interface – Contents
1 Introduction 8-3
1.1 Principles of data transfer 8-4
1.1.1 Serial/parallel 8-4
1.1.2 Asynchronous data format 8-5
1.1.3 Checking data 8-7
1.1.4 Data transfer rate 8-8
1.2 Handshaking 8-9
1.2.1 Hardware handshaking 8-9
1.2.2 Software handshaking 8-9
2 TNC data interfaces 8-10
2.1 General 8-10
2.2 RS-232-C/V.24 interface 8-10
2.2.1 Hardware 8-10
2.2.2 Signal levels 8-11
2.2.3 Signal designations 8-12
2.2.4 Pin layouts 8-14
2.3 RS-422/V.11 interface 8-15
2.3.1 Hardware 8-15
2.3.2 Signal levels 8-16
2.3.3 Signal designations 8-16
2.3.4 Pin layouts 8-17
2.4 Data interface functions 8-17
2.4.1 Saving/reading files 8-18
2.4.2 Output to external devices 8-19
2.4.3 Reading in and simultaneously executing programs (DNC operation) 8-19
2.4.4 Communication between TNCs 8-20
2.5 Configuration of interfaces 8-21
2.5.1 Selection of interfaces 8-21
2.5.2 Freely configurable interfaces 8-21
2.6 External programming 8-27
2.7 Interfacing with other equipment 8-27
3 Data transmission protocols 8-28
3.1 Standard transmission protocol 8-28
3.1.1 General 8-28
3.1.2 Protocols 8-30