Honeywell HC900 - Page 350

Function Blocks
SEQ Sequencer Function Block
336 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
^RESET = Pulse input for reset
HOLD = Input for Hold (level trigger)
^RUN = Edge triggered input for run
^ADV = Edge triggered input to advance to the next step defined in the current
sequence step
ATTENTION
If either or both NSEQ and NSTEP are connected directly to analog variables, when that
analog variable changes (for example: via a recipe load), then the Sequencer block will
immediately use the new value internally.
If NSEQ or NSTEP is connected to any other function type then their values are loaded into
the Sequencer only when ^SET goes through a positive transition.
Outputs
OUT1 thru OUT16
= State Output values
STMR = Time remaining in current step (minutes)
MODE = Sequence Mode [N/A, RESET, RUN, HOLD, STOP]
STATE = Current State number (Output states as configured by the user)
AUX = Auxiliary Output corresponding to the current step
STEP = Current Step number
Configurable Parameters
The Sequencer properties dialog box is divided into 3 tab cards
General tab
Parameter Index # Parameter Description Value or Selection
Tag Name
0 Tag Name of Sequencer 16 characters maximum
Descriptor
Description of Sequence 16 characters maximum
Aux label
Auxiliary Output label for OI
Display
8 characters maximum
Aux Units
Auxiliary Output Engineering
Units for OI Display
4 Characters maximum
Aux Decimal
Places
Decimal Places for Auxiliary
Output Value
0-3
Labels tab
Parameter Index # Parameter Description Value or Selection
Out1 thru
Out16
0 Output Labels for OI Display 8 characters maximum