Rockwell Automation 22-COMM-L LonWorks Adapter - Manual (Page 33)

Configuring the Network 4-5
This section describes the Network Variable Inputs.
Variable: nviObjRequest
Format: SNVT_obj_request
Explanation: This Network Variable Input enables control commands
and updates from the network to specific objects in the node. The
identification number for the node is 0 and for the drive object is 1. The
request functionality is the same for both objects. The setting of
nviObjRequest does not affect the ability of setting drive speed. The
status of the node is reported in nvoObjStatus (
page 4-7 ).
Valid Range for Object ID: 0 and 1
Valid Range for Request:
• RQ_UPDATE_STATUS updates nvoObjStatus.
• RQ_CLEAR_STATUS clears nvoObjStatus.
• RQ_CLEAR_ALARM clears a fault in the drive.
• RQ_REPORT_MASK reports supported requests in nvoObjStatus.
• RQ_NORMAL is the normal request where the node functions as
normal.
• RQ_DISABLE puts the node in a disabled state. It sets a Comm Loss
Action to the drive (at address 0x2002 bit 5). It does not respond to
any updates received on Network Variable Inputs, but it supports
writing of configuration properties (Network Configuration Inputs). A
value written to a Network Variable Input in this state is not written to
the drive. It will NOT be valid when the node is enabled again. In the
disabled state, Network Variable Outputs (NVOs) are not propagated
to the network. If the node was already in the disabled state, a request
to disable the node is not an error.
• RQ_ENABLE enables the node again after a disable request.
All other requests are not supported, and any attempt to use them sets the
invalid_request bit in nvoObjStatus.
Network Variable Inputs (NVIs)
Node Object Request