User guide

midon design
1WSwitch User Guide Version 1.02 Page 23 of 28
10. Error Messages
Table 6 1WSwitch Error Messages
Message Description
? Entry error
You have made a syntax error in entering a command or a
parameter
! Memory is full
You tried to add more than 60 1-wire devices via the INI
command. 1WSwitch has sufficient memory for only 60
unique 1-Wire device ID’s.
Not installed
1WSwitch could not communicate to the device that you
were trying to access. Check your 1-Wire bus wiring, or
make sure that you are specifying the correct sensor
number.
OW bus error
Common to any 1-wire bus read operation. This error
indicates that something is preventing the bus from
changing state. Typical causes include shorts on the bus, or
a reversed sensor.
? Input Timeout
A parameter was not received in response to a command
within 1 minute.
? Device Write Error
Only issued when communication with a DS2408 fails. Try
the command again. If it persists, you may have a 1-Wire
bus wiring problem.
Table 7 Reset Type Messages
Reset Type
(hex)
Cause of Reset
02
Low voltage – the power supply fell below spec
04
Monitor Mode reset entry – should never be seen
08
Illegal Address – something in the software caused access to an illegal
address. Contact Midon Design
10
Illegal Op Code reset – something in the code happened. If this was not
the result of a ZZZ command, contact Midon Design
20
Watchdog timeout. The software was busied out with something. If this
occurs too frequently, contact Midon Design
40
User reset – you issued a ZZZ command
80
Power on reset – a normal entry
Binary combinations of the types above are possible and normal. For example, a
power up reset will usually result in a type 82 message (Power on reset plus low
voltage reset) and a ZZZ reset will result in a type 50 message.