GE 90*-30 PLC Series User Manual page 34

Interface between a series 90-30 programmable logic controller (plc) and a lonworks network bus interface module
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4
Overview
4-2
The LBIM is configured using the I/Open LBIM Configuration program for Microsoft Windows.
Using this utility, a configuration file is created. This file is in the external interface file format
(.XIF) for L
W
devices. The file contains node and network variable information along
ON
ORKS
with the register mapping information needed by the LBIM to configure the interface. The .XIF
file is downloaded to the LBIM by the configuration software over the L
L
M
File Transfer Protocol. The following general procedure is used to configure the
ON
ARK
LBIM.
Step A. Determine what network variable types will be needed to interface with the PLC.
Example:
Inputs
SNVT_temp
SNVT_count
SNVT_freq_f
SNVT_temp_f
Figure 4-1. Example: Determining What Network Variable Types are Needed
Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997
Outputs
3
SNVT_temp
2
display
1
1
a45643
NVO 1, SNVT temp
NVI 1, display
Node 1
NVO 1,SNVT count
NVO 3, SNVT temp
NVO 4,SNVT freq f
NVI 2, SNVT temp
Node 2
NVO 5,SNVT count
NVO 6,SNVT temp
Node 3
NVO 7,SNVT temp f
Node 4
W
network using
ON
ORKS
1
1
GFK-1322A

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