User guide

midon design
TEMP08 User Guide Version 4.0x Page 23 of 25
8. Error Messages
Table 5 TEMP08 Error Messages
Message Description
? Entry error
You have made a syntax error in entering a command
or a parameter
Not installed
TEMP08 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.
Try again
This error is specific to the NOR, LED and RLY
commands and indicates that TEMP08 could not write
to the DS2450 or DS2408. Check your wiring.
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
You entered a command but a parameter was not
entered within 1 minute.
Table 6 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, 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.