LPGmass Modbus RS485
Technical data
Hauser
75
Recommended measuring range
Operable flow range
Over 1000 : 1.
Flow rates above the preset full scale value do not override the electronics unit, with the
result that the totalizer values are registered correctly.
16.4 Output
Output signal
Modbus RS485
Physical interface
In accordance with EIA/TIA-485-A standard
Terminating resistor
Integrated, can be activated via DIP switch on the transmitter electronics module
Signal on alarm
Depending on the interface, failure information is displayed as follows:
Modbus RS485
Failure mode
Choose from:
• NaN value instead of current value
• Last valid value
Interface/protocol
• Via digital communication:
Modbus RS485
• Via service interface
Plain text display
With information on cause and remedial measures
Light emitting diodes (LED)
Status information
Status indicated by various light emitting diodes
The following information is displayed depending on the device version:
• Supply voltage active
• Data transmission active
• Device alarm/error has occurred
Low flow cut off
The switch points for low flow cut off are user-selectable.
Galvanic isolation
The following connections are galvanically isolated from each other:
• Outputs
• Power supply
Protocol-specific data
Protocol
Modbus Applications Protocol Specification V1.1
Device type
Slave
Slave address range
1 to 247
Broadcast address range
0
