Function Blocks
ON/OFF Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 239
2/07
Table 71 ON/OFF Range/limit tab configuration parameters
Properties
Function
Parameter Index # Parameter Description Value or Selection
Ranging PV High range
0 PV High Range Value –99999 to 99999
PV Low
Range
1 PV Low Range Value –99999 to 99999
Display
Decimal
Places
N/A
Number of digits to display after
decimal point.
0 to 5
Units
N/A Text to display for EU 6 characters
DEV Bar
Range (EU)
N/A
Deviation Bar Range on the
Operator Interface
–99999 to 99999
Limiting SP High Limit
12
Setpoint High Limit Value -
prevents the local and remote
setpoints from going above the
value set here.
–99999 to 99999
SP Low limit
13
Setpoint Low Limit Value -
prevents the local and remote
setpoints from going below the
value set here.
–99999 to 99999
SP Rate Down
15
Setpoint Rate Down value - when
making a setpoint change, this is
the rate at which setpoint will
change from the original setpoint
down to the new one.
0 (off) to 9999 (eu/min)
SP Rate Up
16
Setpoint Rate Up value - when
making a setpoint change, this is
the rate at which setpoint will
change from the original setpoint
up to the new one.
0 (off) to 9999 (eu/min)
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