MicroARM-A4
Programmable Logic Controller
Table of content
1. Introduction ................................................................................ 3
2. Characteristics ............................................................................ 3
2.1 Presentation of the board.................................................................................3
2.2 LED meanings.....................................................................................................4
2.3 Mechanical dimension.......................................................................................4
3. Connections ............................................................................... 4
3.1 Digital..................................................................................................................4
3.1.1 Digital input.........................................................................................................4
3.1.2 Digital output with PNP transistor......................................................................5
3.1.3 Digital output with relay......................................................................................5
3.2 Analog.................................................................................................................5
3.2.1 Analog input........................................................................................................5
3.2.2 Analog output.....................................................................................................6
3.3 Communication port..........................................................................................6
3.3.1 COM0 RS232 and COM2 RS232........................................................................6
3.3.2 COM1 RS485.......................................................................................................6
3.4 Power supply......................................................................................................7
4. Loading an application ............................................................... 7
5. Safety and warnings .................................................................... 7
6. rotection device ........................................................................ 8
7. Elimination ................................................................................. 8
8. Cleaning ..................................................................................... 8
9. Technical features ....................................................................... 8
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