Bus Terminal With Terminating Resistors - Festo MSE6-E2M Operating Instruction

Commissioning
1. Connect the bus node to the network.
2. Seal the unused connections with cover caps or blanking plugs to achieve the specified degree of
protection.
Connection of CPX-FB13 with Festo plug
The Festo FBS-SUB-9-GS-DP-B plug enables convenient connection to the network. The plug can be
disconnected from the bus node without interrupting the bus line, T-TAP function.
The clamping clip in the Festo plug is internally only capacitively connected to the metal housing of
the Sub-D plug. This prevents compensating currents from flowing through the shield of the fieldbus
cable.
– Note the assembly instructions for the plug connector. Tighten the two retaining screws initially by
hand and then to 0.5 Nm ±10%.
1 2
7
Fig. 20: Festo plug, FBS-SUB-9-GS-DP-B
The bus termination of the connector can be switched with the DIL switch.
The plug switches the continuing bus line off if the bus termination is wired in.
Switch setting
OFF
ON
Tab. 21: Meaning of switch position
8.3.3

Bus terminal with terminating resistors

A terminating resistor is required at both ends of a bus segment.
A terminating resistor is required if the energy efficiency module with bus node CPX-FB13 is located at
the beginning or end of the bus segment.
Festo — MSE6-E2M — 2022-08d
3
6 5 4
Connecting the bus
Not switched
Switched
1
Hinged lid with inspection window
2
Blanking plug if connection unused
3
Clamping clip for shield connection
4
Network incoming (IN)
5
Bus termination switch
6
Network outgoing (OUT)
7
Only connected capacitively
Continuing fieldbus cable
Switched on
Switched off
37