Honeywell HC900 - Table 68 ON;OFF General Tab Configuration Parameters

Function Blocks
ON/OFF Function Block
234 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
Table 68 ON/OFF General tab configuration parameters
Properties Function Parameter Index # Parameter Description Value or Selection
Block Order
N/A Execution Order
Read Only. To change block
order, right-click on a Function
Block and select Execution
Order.
Tag Name
N/A 16-character tag name
Descriptor
N/A Block description
Direction
N/A Control Action
REVERSE - Proportional action
causes output to decrease as
process variable increases.
DIRECT - Proportional action
causes output to increase as
process variable increases.
SP Tracking
N/A Setpoint Tracking
NONE
TRACK PV - When control
mode is “manual”, local setpoint
tracks process variable.
TRACK RSP - When setpoint is
remote setpoint, local setpoint
tracks remote setpoint.
Control
Hysteresis
19 Output Hysteresis 0 % to 10 % of input span