Technical data
Proline Promass E 300 Modbus RS485
176
Hauser
The following inputs and outputs are available for assignment:
• Choice of current output: 4 to 20 mA (active), 0/4 to 20 mA (passive)
• Pulse/frequency/switch output
• Choice of current input: 4 to 20 mA (active), 0/4 to 20 mA (passive)
• Status input
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
Current output 0/4 to 20 mA
4 to 20 mA
Failure mode
Choose from:
• 4 to 20 mA in accordance with NAMUR recommendation NE 43
• 4 to 20 mA in accordance with US
• Min. value: 3.59 mA
• Max. value: 22.5 mA
• Freely definable value between: 3.59 to 22.5 mA
• Actual value
• Last valid value
0 to 20 mA
Failure mode
Choose from:
• Maximum alarm: 22 mA
• Freely definable value between: 0 to 20.5 mA
Pulse/frequency/switch output
Pulse output
Failure mode
Choose from:
• Actual value
• No pulses
Frequency output
Failure mode
Choose from:
• Actual value
• 0 Hz
• Defined value (f
max
2 to 12
500 Hz)
Switch output
Failure mode
Choose from:
• Current status
• Open
• Closed
Relay output
Failure mode
Choose from:
• Current status
• Open
• Closed