Yokogawa ADMAG AXF - Manual (Page 49)

IM 01E20C01-01E 6-20
6. PARAMETER DESCRIPTION
(5) Menu F: Status Functions Setting items
Menu F contains setting items relevant to status Input/Output functions.
[F10: SO1 Function] Setting of the function for the SO1 status output terminal
This parameter sets the function for the SO1 (status output 1) terminal.
Setting
No Function Stop output (i.e., inactive condition) As no function is set, there is no output.
Warning Output Output upon warning
Total Switch Totalization switch output
Refer to Alarms (Section 6.5)
Status output is carried out when the forward internal
totalized value reaches or exceeds the totalization switch value.
The totalization switch value is determined using D23: Ttl
Switch Lower and D24: Ttl Switch Upper.
H/L Alarm H/L alarm output
Status output is carried out when the instantaneous flow rate
equals or falls below the low flow rate limit (L), or when it equals
or exceeds the high flow rate limit (H). These limit values are
determined using G10: Low Alarm and G11: High Alarm.
HH/LL Alarm HH/LL alarm output
Fwd/Rev Ranges Forward/reverse flow rate measurement
Auto 2 Ranges Automatic 2 ranges switching
Auto 3 Ranges Automatic 3 ranges switching (Note 1)
Auto 4 Ranges
Ext 2 Answer
Ext 3 Answer
Ext 4 Answer
Automatic 4 ranges switching (Note 1)
Answerback: 2 ranges switching via
external status input
Answerback: 3 ranges switching via
external status input (Note 1)
Answerback: 4 ranges switching via
external status input (Note 1)
Status output is carried out when the instantaneous flow rate
equals or falls below the low-low flow rate limit (LL), or when it
equals or exceeds the high-high flow rate limit (HH). These limit
values are determined using G12: Low Low Alarm and G13:
High-High Alarm. To output “HH/LL Alarm” as an alarm, set
G33: Alm-HH/LL to “Yes”.
When flow is in the reverse direction, switching to the reverse
range is carried out automatically, measurement is performed,
and status output is carried out.
This function ensures that when the instantaneous flow rate
exceeds 100% of the range, transition to the next range is
carried out automatically. Status output is carried out
upon range switching.
When range switching is carried out in response to external
status input, status output is performed in the form of an
answerback to indicate the range currently being used.
Description Function
T0623.EPS
Note 1: When these functions are selected, two terminals become necessary for status output.
Accordingly, the setting for F10: SO1 Function is automatically adopted as the setting for F11: SO2 Function.
(Setting of these functions is not possible using F11: SO2 Function.)
Note 2: Function-specific SO1 and SO2 operations
Operations are performed in accordance with the content of the following table when the active mode has been
set to "Closed (On) Act" using F14: SO1/2 Active Mode.
Operating patterns are reversed when the active mode has been set to "Open (Off) Act" using this parameter.
Selected function
Condition of SO1 or SO2 terminal
Closed (On) Open (Off)
Warning status
Equal or above setting value
H/L alarm status
HH/LL alarm status
Reverse direction
Good (normal)
Below setting value
Normal
Normal
Forward direction
Warning Output
Total Switch
H/L Alarm
HH/LL Alarm
Fwd/Rev Ranges
T0624.EPS
Note: For “Auto 2 Ranges,” “Auto 3 Ranges,” “Auto 4 Ranges,” “Ext 2 Answer,” “Ext
3 Answer,” and “Ext 4 Answer,” see the Multiple ranges setting section.
[F11: SO2 Function] Setting of function for the SO2 status output terminal
This parameter sets the function for the SO2 (status output 2) terminal. Selectable functions are the same as for F10:
SO1 Function; however, the selection of “Auto 3 Ranges”, “Auto 4 Ranges”, “Ext 3 Answer”, or “Ext 4 Answer”
is not possible for F11.