11
4.2
Connector X2: Analog Output
The connector X2 provides 4 independent analog outputs with a
range of 0-2.5V DC at a resolution of 14 bits (Tab. 2). The 4 analog
outputs can be configured by the UART communication protocol
very flexible. The parameter given at each analog output can be
chosen (e.g. oxygen concentration in different units, signal
intensity of the oxygen sensor, ambient pressure, ambient
humidity, internal temperature, external temperature from
PT100), the scaling can be adjusted freely, and even an alarm
function can be configured. If an analog output is configured as an
alarm output, it will give 2.5V if a specific parameter is out of a
defined range (and 0V if it is within this range).
For further details please refer to the separately available
communication protocol.
Pin Name
Function
Description
1
GND
Ground
2
AO_A
Analog Output
(0 – 2.5 V DC)
(14 bit resolution)
Analog Output Port A
(alternatively digital
alarm output)
3
AO_B
Analog Output
(0 – 2.5 V DC)
(14 bit resolution)
Analog Output Port B
(alternatively digital
alarm output)
4
AO_C
Analog Output
(0 – 2.5 V DC)
(14 bit resolution)
Analog Output Port C
(alternatively digital
alarm output)
5
AO_D
Analog Output
(0 – 2.5 V DC)
(14 bit resolution)
Analog Output Port D
(alternatively digital
alarm output)
Tab. 2
Pin configuration of the connector X2
