Bartec RLAnet 17-85G5-2123 Series - Page 9

11-85G5-7D0002/B-EHT-10/2021 9
Connection in the MODBUS network
Connection of the RS485 line
Key
N1
Monitoring device RLA
net
H1
HMI, such as PC
RS485-
Leitung
Twisted pair cable, 2x 0.5 mm²
120R
Termination resistance (optional)
In the event of transmission errors, the optional use of a bus termination with R=120 Ohm or a data line Z0=120 Ohm is possible.
Connection and switching situations
LED
Voltage
Relay contact
Display
Output status
Power
Leak
Service
OUT
NO-COM
no leak
open
OUT
OUT
OUT
ON
NO-COM
no leak
open
ON
OUT
OUT
leak
closed
ON
ON
OUT
power failure
open
OUT
OUT
OUT
broken sensor
line
open
ON
OUT
ON
ON
NC-COM
no leak
closed
ON
OUT
OUT
leak
open
ON
ON
OUT
power failure
closed
OUT
OUT
OUT
broken sensor
line
closed
ON
OUT
ON