Emerson E2 User Manual

case controller has no usable case temperature input 
value), the case controller will keep the valve percentage 
at its last known good value and continue operation as nor-
mal. For instance, if the valve was at 75% when the case 
temp sensor(s) failed, the valve will remain at 75% until it 
the failure is corrected. All other case control functions 
will continue functioning as normal.

Input and output wiring for a case controller is dis-

cussed in detail in Section 4, E2 Hardware Setup. Before 
a Case Control Circuit application may begin functioning, 
all case controllers must be properly connected to its case 
inputs and outputs, and each case controller must be com-
missioned and properly communication on the Echelon 
Network (see Section 4, E2 Hardware Setup for instruc-
tions on how to do this). 

Most of the data required for a case controller to begin 

operation are supplied to it by associating the controller 
with an E2. However, in some cases, it will be necessary to 
change some of the parameters in an individual case con-
troller. Some instances where it will be necessary are:

•When the configuration for the inputs needs to be 

changed (i.e., when the case has a sensor or 
switch configuration that cannot be satisfied by 
the default configuration).

•When a valve other than an Emerson Flow Con-

trols ESR-12, ESR-20, or ESV is being used. 
Each case controller is programmed by default to 
operate Emerson Flow Controls brand valves. If 
the valve type is different, the valve control 
parameters must be changed in the case controller 
software.

•When the PID settings that determine the valve 

aperture or closure require alteration.

When necessary, the case controller can be altered in 

either of two ways. You can change settings in a case con-
troller application in E2 via the front screen. Or, you can 
use a Hand-held Terminal to log in to the CC-100 or CS-
100 directly, and make temporary changes that will not be 
saved.

Before you can program a Case Control Circuit with 

the necessary parameters, you must associate the appropri-
ate CC-100s, CS-100s, EC-2s, and CCBs with the Case 

Control Circuit application you will be programming.

To access the CC/CS-100 Case Control Association 

Screen:

1.

Press 



 for the Main Menu.

2.

Press 



 for System Configuration.

3.

Press 

 

for the Network Setup menu.

4.

Press 

 

for Case Control Associations. The 

Case Control Association screen should look like 
Figure 11-7:

This screen lists all of the CC-100s, CS-100s, EC-2s, 

and CCBs defined in this E2. Each one is listed with its 
name, its node number, the application name of the case 
controller’s application, and the associated circuit name.

To associate a case controller with its circuit, move the 

cursor into the Circuit field of the controller you wish to 
associate, and press the 

 key. The Application Selec-

tion menu will list all of the Case Control Circuit applica-
tions in the E2. Choose the desired circuit and press 

 

or 

 to select. Repeat this process until all case con-

trollers are associated with Case Control Circuit applica-
tions.

A logging group is a set of application property inputs 

and outputs whose values are recorded (logged) with the 
same parameters. Parameters include the interval, how 
often the property values are logged (for example, every 
30 seconds, every 5 minutes, etc.), the duration of the log 
(for example, 2 days, 30 days, 100 days, etc.), and the res-
olution (how precisely the analog values are recorded).