Fault codeF008
USS protocol timeout occurs when communication with the bus master fails, possibly due to serial interface issues or incorrect settings for P091–P093. The manual's first action is: “Check the serial interface. Check the settings of the bus master and P091 – P093. Check whether the timeout interval is too short (P093).”
- Model
- Siemens MICRO MASTER and MIDI MASTER
- Display shows
- USS protocol timeout (F008)
- Type
- Fault code
- Source
- Manual p. 42
What F008 means
USS protocol timeout p. 42
What to do
- Check the serial interface. Check the settings of the bus master and P091 – P093. Check whether the timeout interval is too short (P093). p. 42
Before you service the product, read the safety instructions in the manual p. 4.
If F008 is still not resolved
- Only qualified personnel may connect, start the system up and repair faults. p. 3 “Only qualified personnel may connect, start the system up and repair faults.”
- These personnel must be thoroughly acquainted with all the warnings and operating procedures contained in this manual. p. 3 “These personnel must be thoroughly acquainted with all the warnings and operating procedures contained in this manual.”
This page summarises what the manufacturer’s manual says about F008; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Siemens. Found a mistake? Report an error.