<3. Operation>
3-20
IM 01C25T03-01E
(19) Status Output (option code AL)
This feature is used for a transistor output (open
collector) of an on/off signal according to the
status of high and low alarm limits, which are
user-configurable values as shown in (18) Process
Alarm. The status output can be assigned as
any combination of the high or low limits of the
input pressure, input static pressure, or capsule
temperature. Please note that the status output
function is not a safety related function and it
can not be used for safety instrumented system
applications.
CAUTION
Execute DO testing by the parameter "K40:
DO test" whenever turning on the transmitter
or detecting the short interruption in order to
check that the alarm contact output is correctly
configured.
NOTE
No status output signal has been defined for a
CPU failure or hardware error. Use a 4-20 mA
signal to indicate a transmitter’s failure.
• Example: Set the status output to output an
off signal when the input pressure
exceeds 75 kPa with its alert mode
of HI. AL DETECT.
ESC
SET
E50:DO SELECT
PRES
FEED
NO
OK
SET
E50:DO SELECT
INHIBIT
< INHIBIT >
< PRES >
< SP >
< TEMP >
Use the or key
to select
PRES
.
Press the key twice to
enter the setting.
Press the (OK) key.
F0350.ai
ESC
SET
E51:DO SIG.TYPE
OFF WHEN ALARM
FEED
NO
OK
SET
E51:DO SIG.TYPE
ON WHEN ALARM
< ON WHEN ALARM >
< OFF WHEN ALARM >
Use the or key
to select
OFF WHEN ALARM
.
Press the key twice to
enter the setting.
Press the (OK) key.
● Status output for higher alert value
● Status output for lower alert value
F0351.ai
Output
(%)
Status output
Status output
Time (t)
Time (t)
Setting
value
Setting
value
5%* of hysteresis
(5°C for heat)
Output
(%)
5%* of hysteresis
(5°C for heat)
On
Off
Example: Status output operation of
ON WHEN AL. DETECT
On
On
On
Off
*5% of the setting span of differential pressure / pressure.
