Function Blocks
HLLM High Low Limiter Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 169
2/07
Configuration parameters
Table 52 High low limit configuration parameters
Properties Group Parameter Index # Parameter Description Value or Selection
Set Limits High Limit
0 High limit value for analog (X) value –99999 to 999999
Low Limit
1 Low limit value for analog (X) value –99999 to 999999
Example
HFigure 40 shows a Function Block Diagram using an HLLM function block to provide a remote setpoint
signal within specified limits to a PID Control Loop.
X Input
Output
X HI
X LO
HI*
LO*
X
OUT
{
{
Figure 40 HLLM function block example