Endress+Hauser Liquiline System CA80TN, Operating Instructions Manual

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Liquiline System CA80TN Electrical connection
Hauser 29
LEDs on front of module
LED Designation Color Description
PWR Power GN Supply voltage is applied and module is initialized.
BF Bus failure RD Bus failure
SF System failure RD Device error
COM Communication YE Modbus message sent or received.
T Bus termination YE • Off = No termination
• On = Termination is used
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 The switch has no function
6.4 Hardware settings
6.4.1 Bus termination (only module 485DP or 485MB)
There are 2 ways to terminate the bus:
1. Internal termination (via DIP switch on module board)
"ON"
"OFF"
 39 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'
 40 Structure of internal termination
2. External termination