User's Manual

Page 134 SITRANS LR560 (PROFIBUS PA) – OPERATING INSTRUCTIONS 7ML19985LT01
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F: Communications PA
Status Byte
When Condensed Status is disabled, Status Byte will be returned, and the following
codes will be used.
0x74
...0x77
UNCERTAIN – simu-
lated value, end
Indicates the end of a simulation.
Simulation of a measured value is disabled or Input FB
mode changes from MAN to AUTO.
This Status remains active for 10 seconds after simulation
ends.
While this status is active there is no reliable process
value. Measured values and their status are updated
afterwards.
a)
See Acyclic Extended Diagnostics (General Fault Codes) on page 138.
Condensed Status (BAD)
Hex
value
Status BAD Description
0x00 BAD – non specific
Proxy determines that a device does not
communicate.
0x23
BAD – passivated (diagnostics alerts
disabled)
Configured failsafe value is used, accom-
panied by this status.
0x24
...0x27
BAD – maintenance alarm, more
diagnosis available
No measurement available because of a
failure.
0x25
BAD – process related, no mainte-
nance
No measurement available because of
invalid process conditions.
0x3C
...0x3F
BAD – function check / local over-
ride, value not usable
Occurs during cleaning or calibration pro-
cess.
Status Codes for Good Quality
Values in hex notation Description
0x80 Data is GOOD.
0x84
A parameter in the function block has been changed: status active
for 10 s
0x89 Active low warning.
0x8A Active high warning.
0x8D Active low alarm.
0x8E Active high alarm.
Condensed Status (UNCERTAIN) (cont’d)
Hex
value
Status –
UNCERTAIN
Description