Honeywell EXCEL 5000 User Manual page 135

EXCEL CARE CONTROL ICONS
Parameter Number
Descriptions
LIN Example
• Select a user address from the physical point bar in the Control strategy
or Switching logic window.
• Type a user address name.
• Select a pseudopoint.
In the Control strategy function, click the desired pseudopoint in the
pseudopoint bar at the bottom of the window.
In the Switching logic function:
- Click menu item Software points.
The list of pseudopoint types displays.
- Click the analog type.
The Create/select software point dialog box displays.
- Click the desired point from the list. Click OK.
The pseudopoint address displays in the formula.
- Click End in the Create/select software point dialog box to close it.
RESULT: User address displays in the dialog box.
3. Enter values for the a1 through a7 coefficients in the editing fields. Enter as
many as there are user addresses for the x1 through x7 fields.
4. Click OK.
Or, to close the dialog box without saving, click Cancel.
RESULT: If you click OK, the mathematical editor dialog box displays with
the formula. Example:
5. Click OK to accept the formula and close the dialog box.
6. If in the Control Strategy, connect the MAT icon to the appropriate icon. See the
Connection of the MAT Icon to a Control Icon procedure for details.
P3 Coefficient a1
P4 Coefficient a2
P5 Coefficient a3
P6 Coefficient a4
P7 Coefficient a5
P8 Coefficient a6
P9 Coefficient a7
If more than one sensor is in a room, not all the measured temperatures are equally
relevant to room comfort. You can use the LIN function to weight the values of the
sensors. In this example, there are three sensors with the following weights:
User Address Weight
Sensor_1 70 percent
Sensor_2 20 percent
Sensor_3 10 percent
Set up the LIN function with the following values:
a1=0.7 x1: Sensor_1
a2=0.2 x2: Sensor_2
a3=0.1 x3: Sensor_3
When sensor values are:
Sensor_1 = 76
Sensor_2 = 70
Sensor_3 = 68
The LIN calculation is:
137
ALPHABETIC REFERENCE
74-5577–33 (US)
EN2B-0184 GE51 R0518 (Europe)