OPC90 Server
7.8 Device Defi c EVICE
EVICE Definitio 90 is use ailey
nd define its i ing This block must be defined for each Bailey
or redund erfaces that the OPC90 Server is to
ith. C ck has a number of tags used to monitor
ion th an tistics
configured within the OPC90 Server, whic
s d. T e also
device block and selecting properties.
TAGNAME
SS
nition Blo k (D )
The D n OPC block d to declare an instance of the B
driver a nterfac data.
interface ant pair of int
communicate w The DEVI E blo
driver communicat heal d sta . Italicized names indicate attributes
h cannot be connected to via OPC.
These attributes are the
when the block is fir
device properties. Device properties are configured
t adde hey ar be changed by “right clicking” on the
ATTRIBUTE/ TYPE ACCE DESCRIPTION
8 Bit UINT Config
undant channels,
Desired communication scheme (see note 1):
Single interface,
Single interface red
SCHEME
Dual interfaces.
Primary Port String Config Name of the COM or SCSI (see SCSI
communication sub-section) port attached to the
primary interface channel.
te that this
te is set
String Config Name of the COM or SCSI (see SCSI
communication sub-section) port attached to the
Secondary Port
secondary interface channel. No
attribute is ignored if the SCHEME attribu
to single interface.
16 Bit
UINT
ODDs, OMSDD, ORCMs, ORMCs, ORMSCs and
OSTNs) the driver should reserve point indices
s,
TNs
e of
Config Maximum number of output blocks (AOLs, DOLs,MAX OUTPUTS
(block numbers) for within the Bailey interface
device. It is important to note that these indices
are specified as part of the AOLs, DOLs, ODD
OMSDD, ORCMs, ORMCs, ORMSCs and OS
block definition and must always fall in the rang
one to the maximum outputs defined by this
attribute.
WATCH the
ro
alue
hen
face
on
mer
s,
and
ill
lity
DOG 8 Bit UINT Config Desired watchdog timer to be initiated between
driver and Bailey interface device. The timer is
expressed in 2.5 second counts. A value of ze
disables the watchdog timer. The maximum v
is 255 which is equivalent to 637.5 seconds. W
the watchdog timer is enabled, the Bailey inter
device will remove itself from the communicati
loop if the elapsed time in which the driver
communicates with it exceeds the watchdog ti
value. Driver output block values (AOLs, DOL
ODDs, OMSDD, ORCMs, ORMCs, ORMSCs
OSTNs) being received by Bailey controllers w
thereafter automatically be marked as bad qua
by the Bailey system.
INPUT
ace
XRP UPDATE 32 Bit
UINT
Config Frequency in milliseconds at which exception
report availability is read from the Bailey interf
device. Settings in the range of 500 to 3000
milliseconds are common.
The RoviSys Company Version 7.0 Page 62
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