Yaskawa LonWorks Option Card CM048 - Manual (Page 15)

Installation 1-9
‹ Network installation
„ Installation Files
Included on the CD that came with the drive are several files that assist in node installation and identification. They may also be
downloaded from
www.yaskawa.com . These are the External Interface File (E7_LW.XIF) and the Device Resource Files
(E7_LW.TYP, E7_LW.ENU, E7_LW.FPT, and E7_LW.FMT).
„ External Interface File
The external interface file contains a detailed description of a node’s network variables and configuration properties, including
network variable type and self-documentation information. Hardware characteristics, such as transceiver type and initial
communication parameters, are also defined. By importing this file, many network management tools can “pre-define” a device type
prior to connection of the first node. This can greatly reduce installation time.
„ Device Resource Files
Device resource files define the components of an external interface for a LonWorks device. These files allow installation tools and
operator interface applications to interpret and format data properly. Standard resource files are made available by the LonMark
®
Interoperability Association and contain the definition for Standard Network Variable Types (SNVTs), Standard Configuration
Property Types (SCPTs) and Standard Functional Profile Types (SFPTs). The resource files included on the installation disk contain
additional information specific to this interface. These files should be placed in the \TYPES sub-directory associated with the user’s
network management tool and registered in the resource file catalog.
‹ Network Identification and Node Configuration
The L ON W ORKS Option is shipped unconfigured. This implies that the application is loaded and communications parameters are defined
but the option has not been installed on the network. On power up. An unconfigured node can be recognized by the SERVICE LED
flashing at 0.5Hz.
Network identification is accomplished with an installation tool. Unique network identities are established by pairing “logical” addresses
with a device’s 48-bit Neuron ID.
„ SERVICE Button
Each option card has a Service Button. If using a configuration tool utilizing this feature, press the Service Button when prompted to
do so. When pressed, a broadcast message is sent which contains the Neuron ID and program ID. This uniquely identifies the node on
the network. This method works best for small networks or with portable installation tools.
„ Find and Wink
When it is impractical to press each node’s Service Button for installation (e.g. in large networks or a node is physically enclosed), the
“find and wink” installation method is useful. With this method, the installation tool queries the network for all unconfigured nodes.
Nodes respond with their Neuron ID and a logical address is assigned. A “wink” command can then be sent to each logical address. In
response to this command, the TRANSMIT and RECEIVE LEDs will blink rapidly for several seconds. In this manner, the exact
physical location of each node can be identified.
„ Reclaiming a Node
ƒ A node can be “reclaimed”, or returned to its unconfigured state, as follows:
ƒ Remove power from the drive and wait for the charge lamp to be completely extinguished.
ƒ Press and hold the Service Button.
ƒ Re-apply drive power, continuing to press and hold the Service Button.
After approximately 5 seconds, the SERVICE LED should begin flashing at a 0.5 Hz rate, indicating the unconfigured state. This
procedure sets both domain table entries to “undefined” and sets the channel ID to 0.