OPC90 Server
7.30
Station PID Control (STN)
The STN OPC90 block is used to retrieve and control the exception reported
outputs from Bailey Control Station blocks (function codes 21, 22, 23 & 80).
Restrictions: This OPC90 block can be utilized with all Bailey interface types
except serial port module (SPM & CPM02).
TAGNAME TYPE
ACCESS
DESCRIPTION
ADDR_RING VT_I2
Config/Read
Bailey ring address.
ADDR_NODE VT_I2
Config/Read
Bailey node address.
ADDR_MODULE VT_I2
Config/Read
Bailey module address.
ADDR_BLOCK VT_I2
Config/Read
Bailey block address.
MESSAGE
VT_BSTR
Read
Provides the block operational message.
TAG
VT_BSTR
Read
Provides the block name.
TAGLONG VT_BSTR
Read Provides
the block long OPC path name.
TAGDESC
VT_BSTR
Read
Provides the block descriptor.
QUALITY
VT_BOOL
Read
Current quality of Bailey values:
0=good,
1=bad.
STN_TYPE VT_I2
Read Station
type:
1=Basic,
2=Ratio,
4=Cascade.
STN_LEVEL
VT_BOOL
Read/Write
Station level (see note 1):
0=Local,
1=Computer.
STN_OK
VT_BOOL
Read
Station computer ok indicator (see note 1):
0=Bad,
1=Ok.
STN_TIMER VT_I4 Read
Station
time
in seconds since last computer
write (see note 1).
MODE
VT_I2
Read/Write
The mode of the Bailey block (see note 1):
0=Manual
1=Auto
2=Cascade
MODE_LOCK
VT_BOOL
Read
Locked into current mode indicator.
EU
VT_I2
Read
Engineering Units Code.
EU_TEXT
VT_BSTR
Read
Engineering Units String
PID_BLOCK
VT_I2
Read/Write
The Bailey PID/SMITH Predictor block
address associated with this control station
(see note 2).
SP_TRACKING
VT_BOOL
Read
Set point tracking indicator.
SP
VT_R4
Read/Write
Current control station set point.
SP_HI_LIM
VT_R4
Read
SP high limit.
SP_LO_LIM
VT_R4
Read
SP low limit.
PV
VT_R4
Read
Current control station process value.
PV_BLOCK
VT_I2
Read
Process value block address.
RI VT_R4
Read/Write
Current
control station ratio index value.
OUT_TRACKING VT_BOOL
Read
Control output tracking indicator.
OUT
VT_R4
Read/Write
Current control output value received from
Bailey.
OUT_HI_LIM
VT_R4
Read/Write
OUT high limit (see note 3).
The RoviSys Company
Version 7.0
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