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It is always possible to make a substitution, independently of the position
indication and the status information of the I/O board. When substitution
is enabled, the position values are blocked for updating . The substituted
values are stored in a non-volatile memory.
Time diagrams
There are two timers for supervising of the execute phase,
tStartMove
and
tIntermediate
.
tStartMove
supervises that the primary device starts moving after the execute output pulse
is sent.
tIntermediate
defines the maximum allowed time for intermediate position.
explains these two timers during the execute phase.
EXE_CL
tStartMove timer
OPENPOS
CLOSEPOS
tIntermediate timer
t1
t2
tStartMove
tIntermediate
if t1 > tStartMove then
"switch-not-start-moving"
attribute in 'cause' is set
if t2 > tIntermediate then
"persisting-intermediate-state"
attribute in 'cause' is set
Close pulse duration
AdaptivePulse = TRUE
en05000097.vsd
IEC05000097 V1 EN
Figure 121:
The timers tStartMove and tIntermediate
The timers
tOpenPulse
and
tClosePulse
are the length of the execute output pulses to be
sent to the primary equipment. Note that the output pulses for open and close command
can have different pulse lengths. The pulses can also be set to be adaptive with the
configuration parameter
AdaptivePulse
. Figure
shows the principle of the execute
output pulse. The
AdaptivePulse
parameter will have affect on both execute output pulses.
Section 10
1MRK 511 287-UUS A
Control
268
Technical manual
Содержание REC650 ANSI
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