6. PARAMETER DESCRIPTION
[F12: SI1 Function] Setting of the funtion for the SI1 status input terminal This parameter sets the function for the SI1 (status input 1) terminal.
Setting | Function | Description | |
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No Function | No input function |
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| Based on the external status input, the instantaneous flow rate | |
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| indication is forcibly set to 0% (i.e., 4 mA), and both totalization | |
0% Signal Lock | 0% signal lock via external status | and pulse outputs are halted. This setting has precedence over | |
input. | the output signal whenever an alarm occurs. When 0% signal lock | ||
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| is canceled, the instantaneous flow rate is restored in accordance | |
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| with the time constant originally set using B20/C11:Flow Damping. | |
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| Automatic zero adjustment via | Automatic zero adjustment is carried out in response to | |
Ext Auto Zero | external status input. For more details regarding automatic | ||
external status input | |||
| zero adjustment, refer to Chapter 9: Operation. | ||
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Ext Ttl Preset | Forward totalization preset via | The totalization display value is preset or reset to zero in | |
accordance with the external status input. The preset value is | |||
external status input | |||
| determined using D21: Ttl Set Val Lower and D22: Ttl Set | ||
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| Reverse totalization preset via | Val Upper. | |
Ext Rev Ttl Set | In case that “Start” is selected for D20: Total Execution , the | ||
external status input | |||
| count for totalization starts from the preset value. | ||
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Ext 2 Ranges | 2 ranges switching via external |
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status input |
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Ext 3 Ranges | 3 ranges switching via external | This function allows switching of up to 4 ranges in | |
status input (Note 1) | response to status input for a single direction only. | ||
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Ext 4 Ranges | 4 ranges switching via external |
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status input (Note 1) |
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Note 1: When these functions are selected, two terminals become necessary for status input.
Accordingly, the setting for F12: SI1 Function is automatically adopted as the setting for F13: SI2 Function.
(Setting of these functions is not possible using F13: SI2 Function.)
Note 2:
Operations are performed in accordance with the content of the following table when the active mode has been set to "Short Active" using F15: SI1/2 Active Mode.
Operating patterns are reversed when the active mode has been set to "Open Active" using this parameter.
T0625.EPS
Selected function | Condition of SI1 or SI2 | ||
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Open | Short | ||
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0% Signal Lock | Normal | Signal lock status | |
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Ext Auto Zero | Normal | Start of automatic zero adjustment | |
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Ext Ttl Preset | Normal | Forward totalization preset | |
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Ext Rev Ttl Set | Normal | Reverse totalization preset | |
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Note: For “Ext 2 Ranges,” “Ext 3 Ranges,” and “Ext 4 Ranges,” see the Multiple
ranges setting section.
T0626.EPS
[F13: SI2 Function] Setting of the function for the SI2 status input terminal
This parameter sets the function for the SI2 (status input 2) terminal. Selectable functions are the same as for F12: SI1 Function; however, the selection of Ext 3 Ranges and Ext 4 Ranges is not possible for F13.
[F14: SO1/2 Active Mode] Setting of the active mode for status output
This parameter sets the active mode for the terminals SO1 and SO2. Active modes cannot be set individually for these two terminals.
Setting | Function | |
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Closed (On) Act | Status output becomes "Closed (On)" when an | |
| event occurs. | |
Open (Off) Act | Status output becomes "Open (Off)" when an | |
event occurs. | ||
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| T0627.EPS |
Example: When the “Total Switch” function is selected for SO1 or SO2
Closed(On)
Open(Off)
Equal or above setting value Equal or above setting value
Closed (On) Active | Open (Off) Active |
| F0605.EPS |
IM |