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Electrical connections
Ex p Control unit
APEX
mv
Page 42 of 80
01-37A2-7D0005_MV_Manual_Exp-Control-Unit_2021005_0_en.docx
Rev. 0
6.2.2.6
Terminal row “X17”
The optionally available p operator panel can be
connected to the terminal row “X17”.
Terminal Connection
Wire
Function
1
3V3V_HMI
BK
Power supply
2
GND
WH
Ground connection
3
HMI_RX
RD
Data cable
4
HMI_TX
YE
Data cable
6.2.2.7
Terminal row – measurement card
The pressure sensor board belonging to the Ex p control
unit is connected to the terminal row (screw
connection).
Terminal Connection
Wire
Function
1
SCL_H1
WH
Data cable
2
SDA_H1
BN
Data cable
3
3V3_H1
GN
Power supply channel 1
4
SCL_H2
YE
Data cable
5
SDA_H2
GY
Data cable
6
3V3_H2
PK
Power supply channel 2
7
GND
BU
GND
8
Diagnosis
RD
Diagnostic cable