GE G60 Instruction Manual page 229

CHAPTER 5: SETTINGS
Functional ldName
Range: 0 to 64 VisibleString characters
Default: empty string
Each logical device has this setting. The value is configurable in all logical devices. Valid characters are upper and
lowercase letters, digits, and the underscore (_) character. If the number of characters entered is greater than zero, the
setting sets the value of the function-related name used in communications. If an ldName is entered, it must form an
LDName that is unique within the network for proper operation. The standard recommends choosing this name
according to IEC 81346-1. If the number of characters entered is zero, no function-related name is defined.
Throughout the remainder of this IEC 61850 section, <LDName> is a syntactic variable representing the present
LDName of the master logical device. In other contexts LDName can refer to some other logical device. Depending
on its context, <LDName> can be a product-related name or a function-related name.
configRev
Range: 0 to 255 ASCII characters
Default:
This data attribute is provided by the protocol to declare changes to the semantic of the data model of the UR. The intent
is that the user changes Master configRev each time that the semantic or data model changes, so that clients can
readily detect the change. A semantic change is a logical node getting a new semantic use; for example, an instance of
logical node CSWI is now serving a different physical switch, or an instance of a logical node PDIS is now used for
another zone. A data model change is a change in the presence of logical nodes, data objects, data attributes, or
instance names.
The scope of Maser configRev is the entire relay configuration, as the Master logical device is the root logical device.
Similar settings are provided for the other logical nodes; the scope of these other configRev settings is limited to the
corresponding logical device configuration.
paramRev
Range: -2,147,483,648 to 2,147,483,647
Default: 0
The configurable data attribute paramRev has a scope that includes the entire device, and thus is modified whenever
any setting in the device changes. The UR increments the value of paramRev by one whenever one or multiple setting
changes occurs in one Modbus write request by any means (front panel, Modbus, or MMS) other than by SCL file
download. Incrementing occurs whether or not the setting is represented in the information model. When a UR device or
EnerVista UR Setup accepts an SCL file, paramRev is set to the value in that SCL file. When EnerVista UR Setup changes
one or more settings, and prepares an SCL file, it increments paramRev to the next higher multiple of 10 000.
Each logical device has a name: LDName. (Note the upper case LD.) LDName has both a product-related form and
a function-related form as per IEC 61850 6:2009 8.5.3.
SCL files invariably use the product-related form of LDName. The product-related form is the concatenation of the
IED name of the device and the individual logical device's inst name. The IED name is the value of the "IED NAME"
setting on the Server Configuration panel, and the logical device inst names are each the value of the
corresponding "Product LD inst name" setting here. The "Product LD inst name" of the first logical device is fixed at
"Master".
Communications use the function-related form of LDName if a function-related name is defined, otherwise
communications use the product-related name. The function-related name is the value of the corresponding
"Functional ldName" setting if this setting is not empty, if empty the function-related name is not defined.
In SCL, the function-related name is specified by the LDevice element attribute ldName (note the lower case ld).
Absence of this attribute indicates the function-related name is not defined. In SCL the product-related name is
specified by the name attribute of the IED element and the inst attribute of the LDevice element.
In the right pane, logical nodes assigned permanently to the Master logical device and LLN0 in all logical devices are
greyed-out as shown earlier. These are not movable. Any other logical node can be dragged to any of the logical devices in
the middle pane, which causes that logical device to be re-assigned to that logical device. Right-clicking a logical node
G60 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
PRODUCT SETUP
5
5-53