Digital inputs modul E12WEN16
16 galvanic separated voltage inputs
input voltage range 3 ÷ 50V
inverse input polarisation protection
power supply 12V DC
work controll and automatic restart system (!)
small size and possibility of easy install on standard bus
interface RS-485 (half-duplex)
to 19200 b/s, 8 data bits, no parity, 1 stop bit
of easy adressing up to 127 identical controllers16
E12WEN 16 contains
· input form unit - based on transoptors galvanic separating
inputs from main unit; it adjusts also tested voltage to later
interpretation as "0" or "1"
· main unit - based on AT89C51 microcontroller - reads information
about inputs status and transfer it to other system elements.
E12WEN16 may by used wherever needs to interpet voltage (current)
signals status and transfer it by other systems or automatics units. Group
of E12WEN16 may by used with output units and controllers, where long
distance between them needs a lot of wires. Thanks to E12WEN16 system may by
clearer and cheaper.
There is necessary to inform what's the range of input voltage in