Spirit flow-x, Справочник по функциям

Страница: 328 / 350

5-328
Flow-X─ Function Reference
Flow-X IO Functions - fxPulseOutput
fxPulseOutput
This function is used to feed pulses to an electro-mechanical (E/M) counter. There are 4 pulse output
units, to be selected by the index parameter. The function uses a reservoir to accumulate the pulses.
On one hand the number of pulses that need to be added to the reservoir is calculated from inputs
'Increment' and ‘Significance factor'. On the other hand pulses are taken from the reservoir and fed to
the E/M counter at a rate that will not exceed the specified output rate.
This can also be used to configure a dual pulse situation, for this case you can configure a second
channel and the delay it has on the primary channel.
Function inputs Remark EU SW tag Range Default
Name Optional tag name, tag description
and tag group
Index Index number 1..4. INDEX 1..4 1
Channel Digital I/O channel number
0 disables the function CHAN 0..16 0
Significance factor Factor that specifies the relation
between the Increment value and
the number of output pulses.
E.g. a value of 100 means that 1
pulse is generated whenever 100
increment units have been
accumulated. - SIGFCT 0..1e99 1
Pulse width Time that each output pulse
remains active (high) in millisecond
Restriction (pulse duty cycle is 50%):
Pulse width <= 1000 / (2* max.
output rate) ms PLSWID 0..1e6 20
Max. output rate Maximum pulse output rate.
When output pulses are generated
at a frequency higher than the
maximum output rate, the
superfluous pulses will be
accumulated in the pulse reservoir.
Restriction when pulse duty cycle
should not exceed 50%:
Max. output rate <= 1000 / (2*
Pulse width) Hz MAXFREQ 0..1e6 40
Reservoir alarm
limit Alarm limit for the number of
pulses in the reservoir buffer - RSVLIM 0..1e99 1e9
Channel 2 Digital I/O channel number
0 disables the function CHAN 0..16 0
Delay Delay between dual pulse channel
A and B in milliseconds ms 0..1e99 0
Function outputs Remark EU SW tag Alarm Fallback
Status 0: Normal
1: Input argument out of range or in
conflict - STS
FIOOR
Pulse reservoir Number of pulses that are
accumulated in the reservoir. - RSVPLS 0
Reservoir alarm
status With respect to the 'Reservoir alarm
limit' the number of pulses in the
reservoir is:
0: Within limit
1: Out of limit - RSVSTS
RSVALM 0