Nor-Cal Intellisys Adaptive Pressure Controllers - Manual (Page 32)

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I
ntellIsys
A
dAptIve
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ressure
C
ontrollers
APC-OP-LIT 1/12
9.12 - Selection Object
Class ID 2E
hex
Instance ID 1 (setpoint)
TAbLE 9.12.2 – SELECTION ObJECT ATTRIbUTES; INSTANCE 2
AttrIBute ID
hex
AcceSS coDe nAme FormAt vAlue
1 0E (get) Source index USINT Value of instance 1 attribute 5
2 0E (get) Number of sources USINT 02
3 0E (get) Source path length UINT 00 06
4 0E (get) Source list EPATH
20/33/24/01/30/09
controller, process variable, CV
20/33/24/02/30/09
controller, valve position, CV
5 0E (get) Destination index USINT 01
6 0E (get) Number of destinations USINT 01
7 0E (get) Destination path length UINT 00 06
8 0E (get) Destination list EPATH
20/32/24/01/30/06
analog act, value
9 0E (get) Source data value Data type Control variable (TBD)
A 0E (get) Destination data value Data type Control variable (TBD)
B 0E (get) Status USINT 00
• Attribute 5 determines
the selection between
pressure control or valve
control (1 for pressure
control, 2 for position
control), default is 1
after reset.
• A change on attribute 5
only becomes effective
once a new setpoint is
sent (attribute 9)
• When in pressure
control (destinationindex =1)
writing a new setpoint is immediately
tasking the controller to regulate to the designated pressure
• When in position control (destination index=2) writing
a new setpoint will directly affect the valve position
Instance ID 2 (control signal)
NOTE: This object is static. The
only changing variable is the value
of attribute 4 that is linked to
instance 1 attribute 5.
TAbLE 9.12.1 – SELECTION ObJECT ATTRIbUTES; INSTANCE 1
AttrIBute ID
hex
AcceSS coDe nAme FormAt vAlue
1 0E (get) Source index USINT 0
2 0E (get) Number of sources USINT 0
3 0E (get) Source path length UINT 0
4 0E (get) Source list EPATH 0 (USINT)
5 0E (get) 10 (set) Destination index USINT 01 or 02 default to 1 after reset
6 0E (get) Number of destinations USINT 02
7 0E (get) Destination path length UINT 00 06
8 0E (get) Destination list EPATH
20/33/24/01/30/06
controller, process variable, SP
20/33/24/02/30/06
controller, valve position, SP
9 0E (get) 10 (set) Source data value Data type 0% = 0000h, 100%=7FFFh
B 0E (get) Status USINT 00