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Remote Operation : PA
7ML19985JB02 SITRANS Probe LU (PROFIBUS PA) – INSTRUCTION MANUAL Page 27
0x73
UNCERTAIN – simu-
lated value, start
Indicates the start of a simulation.
Simulation of a measured value or Input FB mode
changes from AUTO to MAN.
• This status remains active for at least 10 seconds:
– after enabling simulation
– after setting the FB to MAN mode
– after a restart (e.g. power down cycle) if the simu-
lation is enabled or the FB is in MAN mode
– after passivation is cleared if simulation is
enabled or the FB is in MAN mode
• In MAN mode the status remains until a subsequent
write command overwrites the OUT value after the
10 seconds have expired.
• In simulation mode the written status is buffered and
appears in the value flow after 10 seconds. However
the new written SIMULATE parameter with its status
can be read before the 10 seconds have expired.
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 simula-
tion ends.
While this status is active there is no reliable process
value. Measured values and their status are updated
afterwards.
a.
See
Wear
on page 117 for more detail.
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,
accompanied 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
process.
Hex
value
Status –
UNCERTAIN
Description (cont’d)
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