MicroARM-A4
Programmable Logic Controller
➔
2 RS232 ports (COM 0 and COM2) on the same SubD 9 points connector for
loading or free of use
➔
1 RS485 port (COM1) for loading or free of use
➔
1 RTC (Real Time clock) on bus I2C with backup battery (optional)
➔
1 EEPROM 16 Ko on bus I2C (to backup variables)
➔
1 SRAM 32Ko on bus I2C (to backup variables) (optional)
➔
8 inputs can be used as digital or analog (0-20mA or 0-10V)
➔
4 outputs with transistor can be used as digital or analog (0-10V)
➔
3 digital outputs with transistor
➔
1 digital output with relay
➔
1 reset push-button (inter 2) (located at the left of RS232 connector, jumper side)
➔
1 push-button to change the program (inter 1) (located on the right of RS232
connector, relay side)
2.2 LED meanings
L1 : Working state of the Programmable Logic Controller (PLC)
L2 : Presence 3,3 volts tension
L3 : Presence tension supply
See red circles on drawing 2.1.
2.3 Mechanical dimension
3. Connections
3.1 Digital
3.1.1 Digital input
Value range from 0 to 1.
1
2
3
4
5
6
7
8
9
%I100
%I101
%I102
%I103
%I104
%I105
%I106
%I107
+Alim
4
110 mm
119 mm
51 mm
%I104
%I106
%I105
%I107
%I102
%I103
%I100
%I101
Jumpers configured in voltage
1234
5678
9