Communication Interfaces

Value Parameter

Item settings, depending on what they are, use various value types.Table 14 provides a list of the possible value types and their description.

Table 14

Value types

 

 

 

Type

 

Definition

 

 

 

Numeric

 

An integer numeric value in the units indicated by the item name. For example, a System Voltage

 

Rating of 480 would indicate 480 volts.

 

 

 

 

Similar to the Numeric, this value type is an integer that has been scaled, usually to remove decimal

Scaled

 

points that would normally appear within the value. In this case, a value of 2.5 may actually be input

 

 

as simply 25. For all Scaled types, the scaling appears in Table 15.

String

 

Certain settings are represented by alphanumeric character strings, such as setting the System

 

Model Number to ProductName.

 

 

Enumeratio

 

This type uses an indexed list to represent possible choices. One example is the Modem Baud Rate

n

 

which uses a value of 0 to select 2400 bps, 1 for 9600 bps and 2 for 19200 bps.

 

 

This type of value uses a hexadecimal binary word, where each of the sixteen bits in the word has

Bit-packed

 

the value of 1 (True) or 0 (False). Although somewhat difficult to use, it packs a large amount of data

 

within a single entry. A detailed description of this type appears in section 12.1.3 - Setting

 

 

 

 

Bitpacked Options With the Terminal.

 

 

 

Event

 

This type is a specially formatted and is used to customize the behavior of each fault and alarm in

 

the system. See 12.1.4 - Setting Event Masks with the Terminal for instructions on configuring

Masks

 

 

Event Mask parameters.

 

 

 

 

 

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Liebert PDUTM, STS2 manual Value Parameter, Value types, Type Definition, Bitpacked Options With the Terminal