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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
Содержание HC900
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