RoviSys OPC90 - Data Block (Data); B Lock (Data)

OPC90 Server
7.6 Data Block (DATA)
The purpose of the OPC90 DATA block is to
information with each other through values
supported by this block. The DATA block
VT_I4, VT_UI1, VT_UI2, VT_UI4, VT_R4, VT_R8 and VT_BSTR tag values. It
s a gene pose solu
state timer function. The high resolution ti
minutes, hours or days. It can also be
automatically restarts or must be manually restarted. The Boolean swap state
alue b tru alse
of these timer functions are controllable
Whenever the database is saved, the cu
included in the saved data and will be restor
OPC90 block counts aga
not consume any space or bandwidth within
TAGNAME TYPE ACCESS D
enable OPC clients to communicate
they read / write to the various tags
supports VT_BOOL, VT_I1, VT_I2,
also include ral pur high re tion timer function and Boolean swap
mer units can be setup for seconds,
setup as an up or down timer that
timer flops its v etween e and f at the specified period (seconds). All
from client accessible OPC tags.
rrent OPC client timer settings are
ed when OPC90 is restarted.
Restrictions: This inst the total block license but does
the Bailey interface.
ESCRIPTION
BOOL VT_BOOL Read/Write B
t
oolean, VT_BOOL (0 = false, not zero =
rue).
BSTR VT_BSTR Read/Write String, VT_BSTR.
I1 VT_I1 Read/Write Signed I1, VT_I1 (-128 to 127).
I2 VT_I2 Read/Write Signed I2, VT_I2 (-32,768 to 32,767).
I4 VT_I ea S
2
4 R d/Write igned I4, VT_I4 (-2,147,483,648 to
,147,483,647).
UI1 VT_UI1 Read/Write Unsigned I1, VT_UI1 (0 to 255).
UI2 VT_UI2 Read/Write Unsigned I2, VT_UI2 (0 to 65,535).
UI4 VT_UI4 Read/Write Unsigned I4, VT_UI4 (0 to 4,294,967,295).
R4 VT_R4 Read/Write Real 4, VT_R4.
R8 VT_R8 Read/Write Real 8, VT_R8.
MESSAGE VT_BSTR Read Provides the block operational message.
TAG VT_BSTR Read Provides the block name.
TAGLONG VT_B PSTR Read rovides the block long OPC path name.
TAGDESC VT_BSTR Read Provides the block descriptor.
TIMER VT_R8 Read/Write R
T
unning timer (in units setup by
IMER_CTRL).
TIMER_CTRL VT_UI1 Read/Write T
d
imer control (+0 secs, +1 mins, +2 hours, +3
ays, +4 auto reset, +8 down timer).
TIMER_ALARM VT_BOOL Read T indicator (true = timed out). imer alarm
TIMER_LIMIT VT_R T8 Read/Write imer limit.
SWAP VT_BOOL Read/Write Swaps state between true / false.
SWAP_TIME VT_R8 Read/Write Time between each state swap (seconds).
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