Proline Promass Q 300
Hauser
25
Device type
Slave
Slave address range
1 to 247
Broadcast address range
0
Function codes
• 03: Read holding register
• 04: Read input register
• 06: Write single registers
• 08: Diagnostics
• 16: Write multiple registers
• 23: Read/write multiple registers
Broadcast messages
Supported by the following function codes:
• 06: Write single registers
• 16: Write multiple registers
• 23: Read/write multiple registers
Supported baud rate
• 1
200 BAUD
• 2
400 BAUD
• 4
800 BAUD
• 9
600 BAUD
• 19
200 BAUD
• 38
400 BAUD
• 57
600 BAUD
• 115
200 BAUD
Data transfer mode
• ASCII
• RTU
Data access
Each device parameter can be accessed via Modbus RS485.
For Modbus register information
Compatibility with
earlier model
If the device is replaced, the Promass 300 measuring device supports the
compatibility of the Modbus registers for process variables and diagnostic
information with the earlier Promass 83 model. It is not necessary to change
the engineering parameters in the automation system.
Description of the function scope of compatibility:
Operating Instructions → 84.
Power supply
Terminal assignment
Transmitter: supply voltage, input/outputs
HART
Supply voltage
Input/output 1
Input/output 2
Input/output 3
1 (+)
2 (–)
26 (+)
27 (–)
24 (+)
25 (–)
22 (+)
23 (–)
The terminal assignment depends on the specific device version ordered → 12.
FOUNDATION Fieldbus
Supply voltage
Input/output 1
Input/output 2
Input/output 3
1 (+)
2 (–)
26 (A)
27 (B)
24 (+)
25 (–)
22 (+)
23 (–)
The terminal assignment depends on the specific device version ordered → 12.
PROFIBUS PA
Supply voltage
Input/output 1
Input/output 2
Input/output 3
1 (+)
2 (–)
26 (B)
27 (A)
24 (+)
25 (–)
22 (+)
23 (–)
The terminal assignment depends on the specific device version ordered → 12.
