YOKOGAWA DpharpEJX vigilantplant EJX Series - Functions Relating to Pressure;Differential Pressure

IM 01C25T01-01E
3-26
3. OPERATION
3.5.16 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 3.5.15 Process Alarm. The status
output can be assigned as any combination of the high
or low limits of the input pressure, input static pres-
sure, or capsule temperature.
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.
F0349.EPS
EJX:
DO Select
Pres
Off
Pres
SP
Temp
ESC ENTER
1. Device setup
4. Detailed setup
3. Output condition
4. Process Alerts
7. DO Config
2. DO Select and 3. DO Signal type
Example: Set the status output to output an off signal when
the input pressure exceeds 75 kPa with the alert
mode of Hi. Al Detect.
EJX:
DO Config
1 Digital Output Off
2 DO Select Pres
3 DO Signal type
4 DO Test
HELP SEND HOME ENTER
Press SEND (F2) to send the data
to the transmitter, then check to
confirm that disappears.
(SEND)
SEND
1
2
EJX:
DO Config
1 Digital Output Off
2 DO Select Pres
3 DO Signal type
4 DO Test
HELP SEND HOME ENTER
Press SEND (F2) to send the data
to the transmitter, then check to
confirm that disappears.
(SEND)
SEND
4
(ENTER)
Select Pres, and press ENTER
(F4).
EJX:
DO Signal type
ON WHEN AL. DETECT
ON WHEN AL. DETECT
OFF WHEN AL. DETECT
ESC ENTER
3
(ENTER)
Select OFF WHEN AL. DETECT,
and press ENTER (F4).
 Status output for higher alert value
 Status output for lower alert value
F0350.EPS
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