Yokogawa DO202 2-Wire Dissolved Oxygen Analyzer - Manual (Page 57)

IM 12A00A01-61E
3-52 Foundation Fieldbus
3-8-4 Operation of each parameter in failure mode dO202
• Following table summarizes the value of EXA parameters when LCD display indicates an Alarm.
error description dev_alarm EXA resource block transducer block dO value
eror BLOCK_ERR BLOCK_ERR XD_ERROR PV.status
calibration not stable 0x80000000 E1
S_QUALITY_BAD
zero out of limits 0x40000000 E2 INPUT_FAILURE_ERR MECHANICAL_FAILURE S_SUBS_SENS_FAIL
S_LIMIT_NON
sensitivity out of limits 0x20000000 E3
S_QUALITY_BAD
temp. sensor open 0x10000000 E7 INPUT_FAILURE_ERR MECHANICAL_FAILURE S_SUBS_SENS_FAIL
S_LIMIT_NON
S_QUALITY_BAD
temp. sensor shorted 0x08000000 E8 INPUT_FAILURE_ERR MECHANICAL_FAILURE S_SUBS_SENS_FAIL
S_LIMIT_NON
S_QUALITY_BAD
sensor current abnormal 0x04000000 E9 INPUT_FAILURE_ERR MECHANICAL_FAILURE S_SUBS_SENS_FAIL
S_LIMIT_NON
calibration timer expired 0x02000000 E16 NEEDS_MAINT_NOW_ERR S_BAD_NON_SPECIFIC
not used 0x01000000
not used 0x00800000
not used 0x00400000
not used 0x00200000
not used 0x00100000
not used 0x00080000
not used 0x00040000
mismatch between FF S_QUALITY_BAD
interface and 0x00020000 NEEDS_MAINT_NOW_ERR ELECTRONICS_FAILURE S_SUBS_DEV_FAIL
EXA parameter S_LIMIT_NON
S_QUALITY_BAD
EXA eeprom failure 0x00010000 E20 NEEDS_MAINT_NOW_ERR DATA_INTEGRITY_ERROR S_SUBS_DEV_FAIL
S_LIMIT_NON
LOST_STATIC_ERR S_QUALITY_BAD FF interface eeprom
0x00008000
LOST_NV_ERR
NEEDS_MAINT_NOW_ERR DATA_INTEGRITY_ERROR S_SUBS_DEV_FAIL
failure
S_LIMIT_NON
S_QUALITY_BAD
Hart communication
0x00004000 NEEDS_MAINT_NOW_ERR ELECTRONICS_FAILURE S_SUBS_DEV_FAIL
failure
S_LIMIT_NON
S_QUALITY_BAD
EXA checksum error 0x00002000 E21 ELECTRONICS_FAILURE S_SUBS_DEV_FAIL
S_LIMIT_NON
FF interface checksum
error
0x00001000
resource block out of
service
0x00000800 OUT_OF_SERVICE_ERR S_BAD_NON_SPECIFIC
transducer block out of
service
0x00000400 OUT_OF_SERVICE_ERR S_BAD_OUT_OF_SERVICE
AI1 out of service 0x00000200
AI1 in manual mode 0x00000100
AI1 in simulation mode 0x00000080 SIMULATE_ACTIVE_ERR
AI1 not scheduled 0x00000040
AI2 out of service 0x00000020
AI2 in manual mode 0x00000010
AI2 in simulation mode 0x00000008 SIMULATE_ACTIVE_ERR
AI3 out of service 0x00000004
AI3 in manual mode 0x00000002
AI3 in simulation mode 0x00000001 SIMULATE_ACTIVE_ERR