11 95-86614.1
Sensor Connector
Power Supply Connector
Output Loop
Connector
MODBUS
Connector
Relay Connector
P1
J2
J3
J4
P2
4-20 mA +
4-20 mA –
SHIELD
COM
RS485 A
RS485 B
HIGH ALARM COM
HIGH ALARM NC
HIGH ALARM NO
AUX ALARM COM
AUX ALARM NC
AUX ALARM NO
LOW ALARM COM
LOW ALARM NC
LOW ALARM NO
FAULT COM
FAULT NC
FAULT NO
24 VDC –
24 VDC +
SHIELD
24 VDC –
24 VDC +
SHIELD
SHIELD
CALIBRATE
24 VDC –
4-20 mA
24 VDC +
P1-3
P1-2
P1-1
J2-3
J2-2
J2-1
J4-1
J4-2
J4-3
J4-4
J4-5
J4-6
J4-7
J4-8
J4-9
J4-10
J4-11
J4-12
J3-1
J3-2
J3-3
J3-4
J3-5
P2-6
P2-5
P2-4
P2-3
P2-2
P2-1
UD10
DISPLAY UNIT
D2440
24 VDC
INPUT
4-20 mA
PLC 4-20 mA INPUT CARD
–
+
250
OHMS
MINIMUM
Notes: Resistor may be external if voltage input card is used.
Sinking resistance at PLC must be 250 ohms minimum
for HART communication.
P12
Figure 10—UD10 Wired to PLC using 4-Wire Shielded Cable with 4-20 mA Non-Isolated Sourcing Output
Figure 11—UD10 Wired to PLC with 4-20 mA Isolated Sourcing Output
Sensor Connector
Power Supply Connector
Output Loop
Connector
MODBUS
Connector
Relay Connector
P1
J2
J3
J4
P2
4-20 mA +
4-20 mA –
SHIELD
COM
RS485 A
RS485 B
HIGH ALARM COM
HIGH ALARM NC
HIGH ALARM NO
AUX ALARM COM
AUX ALARM NC
AUX ALARM NO
LOW ALARM COM
LOW ALARM NC
LOW ALARM NO
FAULT COM
FAULT NC
FAULT NO
24 VDC –
24 VDC +
SHIELD
24 VDC –
24 VDC +
SHIELD
SHIELD
CALIBRATE
24 VDC –
4-20 mA
24 VDC +
P1-3
P1-2
P1-1
J2-3
J2-2
J2-1
J4-1
J4-2
J4-3
J4-4
J4-5
J4-6
J4-7
J4-8
J4-9
J4-10
J4-11
J4-12
J3-1
J3-2
J3-3
J3-4
J3-5
P2-6
P2-5
P2-4
P2-3
P2-2
P2-1
UD10
DISPLAY UNIT
C2441
24 VDC
24 VDC
INPUT
4-20 mA
PLC 4-20 mA INPUT CARD
–
–
+
+
250
OHMS
MINIMUM
Notes: Resistor may be external if voltage input card is used.
Sinking resistance at PLC must be 250 ohms minimum
for HART communication.
P12
IMPORTANT
Isolated operation is highly recommended to prevent noise or ripple on the main power source from interfering
with the HART function.