INVENTIA MT-101, User Manual

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Binary inputs
Q1....Q8 – in negative logic:
Any of binary outputs Q1....Q8 may operate as counter input or analogue input with
frequency conversion to analogue value. The change of input's operating mode is done
during configuration.
Typical connection for counting input is identical to standard input connection for positive
logic. The only difference lays in counting of pulses appearing on the input and storing the
result in a 32 bit register assigned to this input.
Binary input operating in analogue mode has a slightly different connection. It is assumed
that the signal is a square wave with variable frequency in range 0....2kHz, where
momentary frequency corresponds to measured analogue value. The wave comes usually
from a converter that exchanges measured analogue value to proportional frequency in
defined range.
5.3. Analog inputs A1, A2
Integral analogue inputs A1 , A2 cooperate with active as well as passive converters
(sensors)
Analogue inputs
A1 , A2 – connection with active output converter