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TABLE OF CONTENTS
Introduction..................................................................................4
Model identification.....................................................................4
1Mechanical dimensions and installation .............................5
2Display characteristics..........................................................6
3Electrical connections...........................................................7
3.1 Terminal clip connections ..................................................7
3.2 Serial ports of communication............................................8
3.2.1 COM1 on DB25 pins..................................................10
3.2.2 EXP1 on DB9 and DB25 connector pins....................11
3.2.3 COM2 Interface RS232..............................................13
3.3 NPN digital inputs ............................................................14
4Programming the terminal..................................................15
4.1 Starter Kit – Connection of the terminal to the PC ...........16
4.2 The development environment ........................................17
4.2.1 Creation of a new project ...........................................19
4.2.2 Modification of an already existing project .................25
5Memory areas of the TD320................................................26
5.1 Area of Variable V............................................................26
5.2 Area of Special Marker SM ..............................................27
5.3 Area of Digital Input I .......................................................40
5.4 Area of Digital Output Q...................................................40
5.5 Area of Marker M .............................................................41
5.6 Area of Analog Inputs AI..................................................41
5.7 Area of Analog Outputs AQ .............................................41
5.8 Areas of Timer T and Preset Timer PT ............................41
5.9 Area of Counters C and Preset Counters PV...................42
5.10 Area of Bistable Relay B ...............................................42
5.11 Area of EEProm............................................................42
5.12 Area of MMC.................................................................43
5.13 Area of TX/RX COM1 ...................................................43
5.14 Area of TX/RX EXP1.....................................................43
6Communication protocols ..................................................45
6.1 Managing the communication port...................................45
6.1.1 Ports COM1 and EXP1..............................................46
6.1.2 Port COM2.................................................................46