GreaterThan Function Block

Greater Than function compares two inputs with each other. The output is set to "true" if In A > In B.

 

Figure 1: GreaterThan Function Block

Figure 2: GreaterThan Function - Property Sheet

The output is set to "true", if In A > In B.

The output does not change or "false", if In A < (InB - Hyst).

Figure 3: GreaterThan Logic Diagram

Input

Input Name

Description

In A

This value is compared against In B.

These are 32-bit floating point input slots.

In B

(In & Par)

This value is compared against In A.

These are 32-bit floating point input slots.

Hyst

(In & Par)

This hysteresis value is defined inorder to avoid cycling Output.

Table 1: Input of GreaterThan Function

Output

Output Name

Description

Out

If In A > In B, Out is "true". If In A < (In B - Hyst), Out is "false".

Table 2: Output of GreaterThan Function

Parameters

Parameter Name

Description

In B Par

(In & Par)

If In B is "null", then In B Par is used.

Hyst Par

(In & Par)

If Hyst is "null", then Hyst Par is used.

Out Save

Master Sync Enabled : If you set it to "true" the last output will be set as output for one cycle after the controller restarts. The application can use it to return to the same state before the controller restart.

Out: To enable or disable the Out feature.

Examples

If In A > In B Output is set to "true". Hysteresis may be defined.

Figure 4: GreaterThan Function Block

Figure 5: GreaterThan Property Sheet

Refer to General Description for general information about IRMN4 Function Blocks.