Proline Prowirl F 200 PROFIBUS PA Diagnostics and troubleshooting
Endress+Hauser 151
Diagnostic information Remedy instructions Influenced measured
variables
No. Short text
275 I/O module failure Change I/O module • Calculated saturated
steam pressure
• Density
• Energy flow
• Flow velocity
• Heat flow difference
• Low flow cut off
• Mass flow
• Total mass flow
• Switch output status
• Pressure
• Reynolds number
• Specific volume
• Corrected volume flow
• Steam quality
• Degrees of superheat
• Temperature
• Volume flow
Measured variable status
Quality Bad
Quality substatus Maintenance alarm
Coding (hex) 0x24 to 0x27
Status signal F
Diagnostic behavior Alarm
Diagnostic information Remedy instructions Influenced measured
variables
No. Short text
276 I/O module failure 1. Restart device
2. Change I/O module
• Calculated saturated
steam pressure
• Density
• Energy flow
• Flow velocity
• Heat flow difference
• Low flow cut off
• Mass flow
• Total mass flow
• Switch output status
• Pressure
• Reynolds number
• Specific volume
• Corrected volume flow
• Steam quality
• Degrees of superheat
• Temperature
• Volume flow
Measured variable status
Quality Bad
Quality substatus Maintenance alarm
Coding (hex) 0x24 to 0x27
Status signal F
Diagnostic behavior Alarm
Diagnostic information Remedy instructions Influenced measured
variables
No. Short text
277 Electronics defective 1. Change pre-amplifier
2. Change main electronic module
• Calculated saturated
steam pressure
• Density
• Energy flow
• Flow velocity
• Heat flow difference
• Low flow cut off
• Mass flow
• Total mass flow
• Switch output status
• Pressure
• Reynolds number
• Specific volume
• Corrected volume flow
• Steam quality
• Degrees of superheat
• Temperature
• Volume flow
Measured variable status
Quality Bad
Quality substatus Maintenance alarm
Coding (hex) 0x24 to 0x27
Status signal F
Diagnostic behavior Alarm