Honeywell S7999B Manual De Usuario

49

65-0303—05

The S7999B must be assigned an IP address by a DHCP 

server for it to operate on the local network, so the Use DHCP 

box should be checked. However, because the S7999B 

requires this feature, it ignores the checkbox and always 

regards it as checked. The checkbox is included for future 

purposes when dynamic IP addressing isn’t required.

Trend analysis of R7910 or R7911 status data can be viewed 

on the S7999B. A graph displays a historical view of R7910 or 

R7911 status data over varying time periods.

A 2-dimensional graph with status data values shown on the Y 

axis over time specified on the X axis is displayed. Status for 

the most recent time is represented on the left side of the 

graph with older status running towards the right side of the 

graph.

Up to 4 R7910 or R7911 status variables can be viewed at the 

same time on one trend analysis graph. Select the status 

variables for the graph on the menu page (see Fig. 107). This 

menu displays when the Trend Analysis button is selected on 

the R7910 or R7911 status page.

The status variable with the largest range (minimum to 

maximum) is used as the Y-axis range in the graph.

As the status variables are selected they are listed in a trend 

variables list box. The user chooses the status variables from a 

drop down menu and then presses the Add button to add each 

status variable to the trend variable list. See Fig. 108. After all 

status variables have been selected press the Show button to 

view the trend analysis graph.

Each status variable displayed in the trend analysis is 

represented by a different colored line, as follows:

1. First status variable = green

2. Second status variable = yellow

3. Third status variable = red

4. Fourth status variable = blue

No more than two different measurement units (such as 

degrees), are allowed for the status variables selected in the 

trend analysis graph. Attempts to add a status variable with a 

third measurement unit are rejected.

A second Y axis is displayed on the right side of the graph to 

represent the scale for the second measurement unit. This can 

result in minor clipping of the curves on the right side, as 

shown in Fig. 109 and 110.