Emerson FloBoss 107 - Page 79

FloBoss 107 Instruction Manual
Revised June-2017 Inputs and Outputs 4-21
TERMINATION RESISTOR
120 OHM
FIELD
DEVICE
+
-
EXTERNAL
POWER
USER SUPPLIED
A
B
Figure 4-18. Application Module Wiring to Single Field Device
Note: To provide internal power to a field device, connect the positive
wire to the PWR connection and the negative wire to the GND
connection on the APP485 module. However, this may not be
appropriate in all circumstances. Check with your local Remote
Automation Solutions representative for the solution relevant to
your situation.
FIELD
DEVICE
EXTERNAL
POWER
POWER
EXTERNAL
-
+
DEVICE
FIELD
POWER
EXTERNAL
DEVICE
FIELD
USER SUPPLIED
120 OHM
TERMINATION RESISTOR
+ +
A
B
A
B
A
B
- -
Figure 4-19. Application Module Wiring to Multiple Field Devices