Pixsys ATR144 - Digital input 1; Digital input 2; Serial input (only on ATR144-ABC-T); Digital output

14 - ATR144 - User manual
6.1.d Digital input 1
+V
DI/O1
(NPN)
8
9
Digital input can be enabled by
parameter.
Close pin 8 “DI/O1” on pin 9 “+V” to
enable digital input.
6.1.e Digital input 2
10
11
Digital input can be enabled by
parameter. Not available when a
resistive sensor (thermoresistances or
potentiometers) is selected.
Close pin 10 on pin 11 to enable digital
input.
6.1.f Serial input (only on ATR144-ABC-T)
- +
Shield/Schermo
RS485
6
7
Modbus RS485 communication.
RTU Slave with galvanic insulation.
It is recommended to use the twisted
and shielded cable for communications.
6.1.g Digital output
+V
DI/O1
(NPN)
8
9
Digital output NPN (including SSR) for
command or alarm.
Range 12 VDC/25 mA.