Proline Promass P 300
Endress+Hauser 25
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 measuring device Promass 300 supports the
compatibility of the Modbus registers for the process variables and the
diagnostic information with the previous model Promass 83. It is not
necessary to change the engineering parameters in the automation system.
Description of the function scope of compatibility:
Operating Instructions → 110.
System integration Information on system integration: Operating Instructions → 110.
• Modbus RS485 information
• Function codes
• Register information
• Response time
• Modbus data map
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.
PROFIBUS DP
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.