Value Parameter, Value types | Emerson Static Transfer Switch

Communication Interfaces

Value Parameter

Item settings, depending on what they are, use various value types. Table 10 provides a list of the possible value types and their description.

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.
Scaled	Similar to the Numeric, this value type is an integer that has been scaled, usually to remove
	decimal 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 11.
String	Certain settings are represented by alphanumeric character strings, such as setting the System
	Model Number to Liebert STS2.
Enumeration	This type uses an indexed list to represent possible choices. One example is the Modem Baud
	Rate which uses a value of 0 to select 2400 bps, 1 for 9600 bps, and 2 for 19200 bps.
Bit-packed	This type of value uses a hexadecimal binary word, where each of the sixteen bits in the word has
	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 on page 81.
Event Masks	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 on page 83 for instructions on
	configuring Event Mask parameters.

Table 11 shows the various groups, the settings contained within, and the type of value it requires.