KROHNE UFC 500 HART User Manual
Page 40
HARTô Smart Communications Protocol
UFC500 Command Specification Rev: 2.0 Release Date: 9 Jun 2001
© 2001 KROHNE Mefltechnik D-47058 Duisburg
Page
40
8.21
Command #153
Read Error List
Unlike Command #48, Read Additional Transmitter Status, where status information is ìmixedî, this command returns a
complete list of error messages: the actual errors are being active at response time; errors that become inactive but are
not quitted, are preserved in a list of ìstoredî errors.
Both actual and stored lists have identical structure. Therefore they are considered below together.
REQUEST DATA BYTES
NONE
RESPONSE DATA BYTES
#0
#1
#2
#3
ACTUAL
ACTUAL
STORED
STORED
ERRORS
ERRORS
ERRORS
ERRORS
#1
#2
#1
#2
Data Byte #0/#2
Bit-mapped actual/stored error byte #1 (bit #7 is MS bit):
Bit #7
Fuse error
Bit #6
Data error in EEPROM 2 (totalizer)
Bit #5
Current calibration values in EEPROM 1+2 are different
Bit #4
Current output overranged
Bit #3
Frequency/pulse output overranged
Bit #2
US path 2 faulted
Bit #1
Empty pipe
Bit #0
US path 1 faulted
Data Byte #1/#3
Bit-mapped actual/stored error byte #2 (bit #7 is MS bit):
Bit #7
Checksum error in ROM
Bit #6
Checksum error in RAM
Bit #5
NVRAM error
Bit #4
Calibration data lost
Bit #3
Data error in EEPROM 1 (parameters)
Bit #2
Irregular flow
Bit #1
Counts lost or totalizer overflow
Bit #0
Power failure
COMMAND-SPECIFIC RESPONSE CODES
0
No Command-Specific Errors
1-5
Undefined
6
Local Device User
7-127
Undefined