GE 90*-30 PLC Series User Manual page 89

Q
3
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.
Figure Q-4. Example: Installing the Module in the Network and Binding the Variables
Q-10 Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997
.
Using a L W network installation tool, install the module in the network and bind the
ON ORKS
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.
PLC
Reg 1
Reg 2
Reg 3
Reg 4
Reg 5
Reg 6
CPU Reg 7
Reg 8
Reg 9
Reg 10
Reg 11
Reg 12
Reg 13
LonWorks BIM
nvi_1
nvi_3
nvi_6
nvi_2
nvi_3
nvi_4
nvi_7
nvo_2
nvo_2
LonWorks Network
a45645
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
GFK-1322A