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2022/03/28
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•
Use external power
–
the data logger does not provide current sourcing
•
Tie “
-
“ of the ADC channel to Signal Ground if 2 wire setup is used
•
ADC channels are isolated
5.2.3
WAGO
–
4x current loop 4..20mA
(“M4
77
24” / “C4
77
24”)
Please note:
There was a firmware bug which resulted in switched polarity and incorrect readings. Make sure to
update to a firmware larger to 2.65. Check chapter firmware update in this document for details.
Connector
Interface
Pin
Signal
Direction
WAGO A
ADC3 & ADC4
4..20mA
1
ADC3 - mA (+)
2
ADC3 - mA (-)
3
ADC4 - mA (+)
4
ADC4 - mA (-)
5
n.c.
6
Analog Reference GND
Signal GND
WAGO B
ADC1 & ADC2
4..20mA
1
ADC1 - mA (+)
2
ADC1 - mA (-)
3
ADC2 - mA (+)
4
ADC2 - mA (-)
5
VCC (6..32V)
Power
6
GND
Power & Signal
Cables are connected with the WAGO 734 series connectors. In most product configurations, those
adapters are shipped with the box. Check the 'scope of delivery' list.
