Bender ISOMETER iso1685DP-425 User Manual

Device communication
67
isoxx1685Dx-x25_D00272_07_M_XXEN/09.2022
Termination
The optimum topology for an RS-485 network is a daisy-chain connection. In this connection,
device 1 is connected to device 2, device 2 to device 3, device 3 to device n etc. The RS-485
network represents a continuous path without branches.
Correct arrangement
Three examples for correct arrangement:
Wrong arrangement
Three examples for wrong arrangement:
Wiring
The following cable is recommended for wiring the RS-485 network:
Shielded cable, core diameter 0.8 mm (e.g. J-Y(St)Y 2x0.8), shield connected to earth (PE) on
one end.
The max number of bus nodes is restricted to 32 devices. If more devices are to be connected,
Bender recommends the use of a DI1 repeater.
A1 A2E KE
21 22 2431 32 34k l kT ITA B S
RS-485
Term .
o on
CAN 1
CAN 2
I2+ I2- I1+ I1-
K3 K2
11 12 14
K1
I2+ I2- I1+ I1-
A B S
k I kT IT 31 32 34 21 22 24 11 12 14
E KE
A1 A2
A B S
RS-485
Te rm.
o on
CAN 2
A B S
A B
S
CAN 2
A B
S
DI1
1
32
33
64

Bender ISOMETER iso1685DP-425 Specifications

General

Brand	Bender
Model	ISOMETER iso1685DP-425
Category	Measuring Instruments
Language	English