Electrical connection
Liquiline CM442R/CM444R/CM448R
34
Hauser
6.5
Connecting digital communication
6.5.1
Module 485
a0016173
Fig. 41: Bus connections on module 485
*
To supply power to an external terminating
resistor for bus termination
a0015762
Fig. 42: Wiring diagram for module 485
LEDs on front of module
LED
Designation
Color
Description
RJ45
LNK/ACT
GN
• Off = Connection is not active
• On = Connection is active
• Flashing = Data transmission
RJ45
10/100
YE
• Off = Transmission rate 10 MBit/s
• On = Transmission rate 100 MBit/s
PWR
Power
GN
Supply voltage is applied and module is initialized
BF
Bus failure
RD
Bus failure
SF
System failure
RD
System failure
COM
Communication
YE
Sending or receiving Modbus message
T
Bus termination
YE
• Off = No termination
• On = Termination is used
Содержание Liquiline CM442R
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