Electrical connection Liquiline System CA80SI
36 Endress+Hauser
DIP switches on front of module
DIP Factory
setting
Assignment
1-128 ON Bus address (→ "Commissioning/communication")
OFF Write protection: "ON" = configuration not possible via the bus, only via local
operation
Service OFF If the switch is set to "ON" , the user settings for Ethernet addressing are saved
and connection settings programmed into the device at the factory are activated:
IP address=192.168.1.212, Subnet mask=255.255.255.0, Gateway=0.0.0.0,
DHCP=Off.
If the switch is set to "OFF" , the saved user settings are reactivated.
7.4 Hardware settings
7.4.1 Bus termination (module 485 only)
There are 2 ways to terminate the bus:
1. Internal termination (via DIP switch on module board)
50 DIP switch for internal termination
‣
Using a suitable tool such as a tweezer, move all four DIP switches to the "ON" position.
The internal termination is used.
390 W
220 W
390 W
VP
DGND
B/B' A/A'
51 Structure of internal termination
2. External termination
Leave the DIP switches on the module board in the "OFF" position (factory setting).
‣
Connect the external termination to terminals 81 and 82 on the front of module 485
for 5‐V power supply.
The external termination is used.