MC Technologies MC100 Terminal - Voltage Inputs 0 - 10 V; Current Inputs 0 - 20 Ma

MC100
Mobile programmable gateway
MC Technologies GmbH, Kabelkamp 2, 30179 Hannover, Germany
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Voltage inputs 0 – 10V
11.6.3
Port
Description
+A1
Positive connection Input 1
-A1
Negative connection Input 1
+A2
Positive connection Input 2
-A2
Negative connection Input 2
The input current at 10V is approx. 2 mA
Note: The applied DC voltage must not exceed 10V.
Function: Reading the voltage inputs (v1.0.4 and older)
Port
Parameter
Read
Write
Path
+A1,-A1
Value
x
/sys/senst2_ADC/voltage/volt0/value
+A2,-A2
Value
x
/sys/senst2_ADC/voltage/volt1/value
Example: Read voltage at ADC input +A1,-A1
Command: cat /sys/senst2_ADC/voltage/volt0/value
Response: e.g. 6400
Function: Reading the voltage inputs (v1.0.5 and later)
Port
Parameter
Read
Write
Path
+A1,-A1
Value
x
/sys/senst2_board/voltage_in/1
+A2,-A2
Value
x
/sys/senst2_board/voltage_in/2
Example: Read voltage at ADC input +A1,-A1
Command: cat /sys/senst2_board/voltage_in1/value
Response: e.g. 6400
Note: Conversion to volts
Formula: Voltage in Volt = value / 1000
Example: Value = 6400 corresponds to 6.4V
Current inputs 0 - 20mA 11.6.4
The analog current inputs of the MC100 SensT2 have two operating modes.
1. Supply of a current - current from the sensor - sensor with own power
supply
2. Low side shunt - with power supply for the sensor