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Error Codes
Error codes are given in the output word immediately before the checksum output indicated by the letter
“E” followed by three ASCII characters representing hexadecimal digits (for example, ASCII F equals
hexadecimal value F, or decimal value 15). Each error condition corresponds to one bit within one of the
hexadecimal digits. When the error condition exists, that bit will be set equal to 1 in the error code
transmitted by the TCM2.5/2.6. The error conditions and their corresponding bit locations are listed below.
Refer to
Table 4: Common Error Codes
for a list of the most common error codes.
Table 3: Bit Locations of Error Conditions
1
st
ASCII Character
Bit 3 (MSB)
EEPROM1 error
Bit 2
EEPROM2 error
Bit 1
Reserved for future use (always 0)
Bit 0 (LSB)
Reserved for future use (always 0)
2
nd
ASCII Character
Bit 3 (MSB)
Reserved for future use (always 0)
Bit 2
Command parameter invalid
Bit 1
Reserved for future use (always 0)
Bit 0 (LSB)
Command invalid or not supported on
current TCM
3
rd
ASCII Character
Bit 3 (MSB)
Reserved for future use (always 0)
Bit 2
Magnetometer out of range
Bit 1
Inclinometer out of range
Bit 0 (LSB)
Reserved for future use (always 0)
Table 4: Common Error Codes
Error Code
Description
E002
Inclinometer out of range
E004
Magnetometer out of range
E006
Magnetometer out of range + Inclinometer out of range
E010
Command invalid or not available
E040
Command parameter invalid
E050
Command invalid or not ava Command parameter invalid
E400
EEPROM2 error
a
E800
EEPROM1 error
a
EC00
EEPROM2 error + EEPROM1 error
a
a. Indicates that the TCM2.5/2.6 EEPROM has been corrupted. Contact PNI for assistance.
