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Q-10
Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual
–
June 1997
GFK-1322A
Q
3
.
Using a L
ON
W
ORKS
network installation tool, install the module in the network and bind the
variables.
This step binds the individual variables from the network into the type slots defined
previously. When these variables are updated, the new values are passed into the proper PLC
register locations. When the PLC updates a register value , the new value is transferred to the
network.
Example: In the example illustrated in Figure Q-4, a change in the value of the input on Node 4
will cause its network variable to update on the network. This value is acquired in the LBIM and
forwarded to registers 6 and 7 in the PLC.
NVO_7, SNVT_temp_f
a45645
NVO_1, SNVT_count
NVI_1, display
Node 1
NVO_1, SNVT_temp
NVO_3, SNVT_temp
NVO_4, SNVT_freq_f
NVI_2, SNVT_temp
NVO_5, SNVT_count
NVO_6, SNVT_temp
Node 2
Node 4
Node 3
CPU
Reg 1
Reg 2
Reg 3
Reg 4
Reg 5
Reg 6
Reg 7
Reg 8
Reg 9
Reg 10
Reg 11
Reg 12
Reg 13
PLC
LonWorks BIM
nvi_1
nvi_2
nvi_4
nvo_2
nvi_7
nvi_3
nvi_6
nvi_3
nvo_2
LonWorks Network
Figure Q-4. Example: Installing the Module in the Network and Binding the Variables
Summary of Contents for 90-30 PLC
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