Festo CPV...-GE-CO3-8 series, Electronic Manual

Page: 38 / 143

1. Installation
1-24
Festo P.BE-CPV-CO3-EN en 1201a
1.4 Bus termination with terminating resistors
Note
Always
use a bus termination at both ends of the field bus.
This also applies if the CPV Direct is at the end of the field
bus.
If you use T-adapters, install the terminating resistor at the
unused output of the T-adapter.
Recommendation:
Fit a resistor (120 Ω, 0.25 W, see following fig.) for the bus
termination in the Festo field bus plug.
1
Protective cap
2
Resistor for bus
connection
(120 Ω, 0.25 W)
V+
GN
D H L
SL
D
V+
GN
D H L
SL
D
V+
GND
H L
SL
D
1 2
Fig. 1/7: Bus termination with resistor in the field bus plug from Festo
1.4.1 Install a terminating resistor using the adapters
If the CPV valve terminal to be connected is at the end of the
field bus, a terminating resistor (120 Ω, 0.25 W) must be
fitted in the field bus socket.
•
Connect the terminating resistor between the cores for
CAN_H and CAN_L.