Proline Promass 84F, 84M
8
Hauser
MODBUS RS485
• MODBUS device type: slave
• Address range: 1 to 247
• Functions codes supported: 03, 04, 06, 08, 16, 23
• Broadcast: supported with the function codes 06, 16, 23
• Physical interface: RS485 in accordance with standard EIA/TIA-485
• Baudrate supported: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 Baud
• Transmission mode: RTU oder ASCII
• Response time:
Direct data access = typically 25 to 50 ms
Auto-scan buffer (data area) = typically 3 to 5 ms
• Possible output combinations
Relay output:
Normally closed (NC or break) or normally open (NO or make) contacts available
max. 30 V / 0.5 A AC; 60 V / 0.1 A DC,
galvanically isolated.
Signal on alarm
•
Current output:
Failsafe mode selectable (e.g. in accordance with NAMUR Recommendation NE 43).
•
Pulse/frequency output:
Failsafe mode selectable.
•
Relay output:
De-energised by fault or power supply failure.
•
MODBUS RS485:
If an error occurs, the value NaN (not a number) is output for the process variables.
Load
See "Output signal"
Low flow cutoff
Switch points for low flow are selectable.
Galvanic isolation
All circuits for inputs, outputs, and power supply are galvanically isolated from each other.
DN
Low flow / factory settings (v
∼
0.04 m/s)
[mm]
[kg/h]
8
8.00
15
26.0
25
72.0
40
180
50
300
80
720
100
1200
150
2600
250
7200
