Echelon OpenLDV User Manual download pdf (Page 90)

82 Sending and Receiving Messages with the OpenLDV API

Network Interface

Command Value Direction Description

niL2_PRE_SHORT 0x34 Uplink Specifies a “Preamble Too Short”

error condition for a Layer 2

network interface.

niL2_PKT_SHORT 0x35 Uplink Specifies a “Packet Too Short” error

condition for a Layer 2 network

interface.

niL2_FREQ_RPT 0x40 Uplink Specifies an incoming frequency

report from a Layer 2 network

interface.

niRESET 0x50 Uplink

Downlink

Uplink: Specifies that the network

interface has executed a hardware

or software reset.

Downlink: Requests a reset of the

network interface.

Applies to both Layer 2 and Layer 5

network interfaces.

niFLUSH_CANCEL 0x60 Downlink Requests that the network interface

cancel any flush operation posted

with the niFLUSH command or

caused by device reset.

The OpenLDV application must

issue this command after a

successful completion of the

ldv_open() function.

You can use the NiInit() function,

which is part of the OpenLDV

Developer Example to open a

connection to a network interface

more conveniently.

niFLUSH_COMPLETE 0x60 Uplink Specifies that a flush operation

posted with the niFLUSH

command has completed.

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Echelon OpenLDV User Manual Page 90