M2M CONTROL C660 - Technical Manual V2.00
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Page 13 of 36
Analog Inputs
There are two analog inputs available on the unit.
The analog inputs are voltage inputs specified with an operating range of 0V to 10V DC. The
conversion resolution is 12 bit +/- 1.5% FSR @ 25 degrees ˚C.
By default the analog voltage is converted to a digital value with a resolution of 10-bit before being
presented to the application (0..1023). The application can change the resolution to the full 12 bit
(0..4095). Please consult the M2M CONTROL IDE documentation for further details.
The input signal is connected between AINx and AGND. AGND must be connected to the
reference of the connected equipment. Please be aware that deviations may occur, as the system is
very noise sensitive. Avoid long, unshielded wires and high current, fast changing signals routed
parallel to the analog signals.
The inputs are low-pass filtered, ESD- and transient protected.
X3: 16 pin I/O connector overview
Pin
Name
Description
7
AIN 1
Analog input 1
8
AIN 2
Analog input 2
15
AGND
Analog Ground
16
AGND
Analog Ground
Specification for each analog input
Min.
Typ.
Max.
Unit
0
-
10
VDC
Protected against transients and
low-pass filtered
Precision is based on measurements
@ 25 ˚C
Resolution
-
-
12
Bit
Precision
-1.5
-
1.5
%FSR
Cut-off frequency
-
4.5
-
kHz
Input impedance
-
40
-
kΩ