6.6.2.5

6.6.2.6

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Custom Signals

Select this heading from the pull-down menu to access/edit a list of Custom Signals. Once a

menu item is selected, tap the “Configure” button to produce another window and list of items to

navigate. With the web interface, the Supervisor may define the unit text string that represents

the units value; e.g.,V, AH, mm, etc. The user may chose to use an equation to define the

value of a Custom Signal, or they may allow the signal to be “settable” over SNMP.

Examples of Signal Configuration and Customization

Example One – Configure Signal and Customize Signal Equation

From this window, the Supervisor can configure the selected signal. Use the pull-down menu to

set the decimal precision or tap Customize to build a signal equation similar to the equation

shown in 6.5.3.10 Custom Alarms. See also 7.2 Equation Builder Keypads.

NOTE: Once a signal equation has been built – it may be edited or disabled – it cannot be removed.

Example Two – Configure AC Mains

From this window, the Supervisor can configure the AC Mains signal. Use the pull-down menu

to set the decimal precision as shown in the following example:

For example:

nnnn

nnn.n

nn.nn

n.nnn

Figure 51–Controller Signals configuration example two (set decimal precision)

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Example Three – Configure (Battery Temperature sensors)

From this window, the Supervisor can configure the Battery Temperature signal and sensors.

Use the pull-down menu to set the decimal precision and tap/toggle the check boxes to enable

sensor(s) for battery temperature as shown in the following example:

Check boxes are disabled if the input is not

a temperature input. User cannot enable.

Figure 52–Controller Signals configuration example three (enable temperature sensors)

Example Four – Configure ADIO01 (Shunt MUX)

Under the menu item Configure Signals, the Supervisor can configure the input range of each of

16 channels for the Cordex Shunt MUX.

1. Select channel (CH15 in the example below) and then Configure.

2. The window changes to show a list (for review) of the input range of each channel. Multiple

channels can be selected for the new value. Select channels and then Set Range to configure

(or select the√ icon to accept the list and return to the previous window).

3. The virtual numeric keypad enables editing of the input range. Select the X icon to return to the

previous window or select the√ icon to accept the new setting.

Set input range to shunt

size (in Amperes/50mV)

Figure 53–Controller Signals configuration example four

(configure input range for Shunt MUX channels)

A message will indicate that the selected devices have been configured with the new setting.

Select the X icon to return to the first window.

Example Five – Midpoint Voltage Error

The following is an example of a Custom Signal configured for an analog input (GP4) reading

the midpoint voltage of the battery (or system). A Custom Alarm is then configured to track the

signal deviations.

For the Custom Signal equation, the midpoint voltage of the

battery (from GP4) is doubled and then subtracted from the

total voltage reading provided by the Battery Voltage signal.

An absolute value yields a positive integer.

Figure 54–Controller Signals configuration example five (part one)

(configure custom signal for input reading midpoint voltage)

NOTE: To Customize, review 7.1 Advanced Programming Example and 6.5.3.10 Custom Alarms.

The text labels may be edited using the web interface of the CXC and are provided here

as default labels for demonstration purposes only.

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For the Custom Alarm equation, the Custom Signal is

compared to the maximum* allowable voltage deviation in

battery string halves. In this example a message is recorded

when the midpoint voltage is in error.

* Some fine-tuning may be required to obtain the ideal setting

that is sensitive enough to detect a ‘bad’ cell and will not

produce false alarms.

Figure 55–Controller Signals configuration example five (part two)

(configure custom alarm for input reading error)