Analog Inputs - Infranet Technologies M2M CONTROL CX320 Technical Manual

M2M Control CX320 Technical Manual V1.01

Analog Inputs

The M2M Control CX320 has four analog inputs, which can be configured individually to work either
as voltage or current measurement inputs using the configuration jumpers. The range in voltage
mode is 0..10 VDC, and in current mode 0..20mA.
The conversion resolution is 12 bit.
The input signal is connected between AINx and AGND. Therefore, 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 significant fast-changing signals routed
parallel to the analog signals.
The inputs are low-pass filtered, ESD- and transient protected.
By default, the inputs are configured as voltage inputs. For replacement and configuration of the
hardware jumpers inside the device, please refer to the device configuration guide in Appendix D.
Analog input pins
Pin Name
22 AIN1
23 AIN2
24 AIN3
25 AIN4
26 AGND
Specification for each analog input (voltage mode):
Min.
Voltage
Resolution
Precision
Cut-off frequency
Input impedance
Specification for each analog input (current mode):
Min.
Current
Resolution
Precision
Cut-off frequency
Input impedance
Description
Analog input 1
Analog input 2
Analog input 3
Analog input 4
Analog Ground
Typ. Max.
0 - 10
- -
12
- 0.5 0.6
- 1 -
- -
40
Typ. Max.
0 - 20
- - 12
- 0.5 0.6
- 1 -
- 504 -
Unit
VDC Protected against transients and
Bit low-pass filtered
%FSR
kHz
kΩ
Unit
mA Protected against transients and
Bit low-pass filtered
%FSR
kHz
Ω
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