QUICKDESIGNER
GE GENIUS
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111
Connecting two QuickPanels and a Series 6 PLC
Set up is the key in getting this system operational. The Series 6 PLC predates the Genius bus link and
attention to detail is important in creating a working system. Details for setting up the Series 6 bus
controller module can be found in the GE Fanuc Automation, Series Six Bus Controller User’s Manual,
document GFK-071. Chapter 7 of that document discusses Global Data.
The goal is to have the PLC broadcast 10 registers of data (since a Series 6 can only send R data). This
data will be contained in R0331 through R0340. QP-A will broadcast 5 registers of data that the PLC
will store in R0341 through R0345, and QP-B will broadcast 7 registers of data that the PLC will store
in R0346 through R0352.
PLC configuration
In order to get the Genius bus controller operating a series of steps dealing with hardware must be
resolved:
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Determine which slot in the I/O chassis the Genius bus controller will be installed, and set up the
hardware address of for this module by configuring the backplane dipswitch. Refer to GE Fanuc
manual number GFK-0171 for details. In our example the hardware address is 1
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Baud rate default setting is 153.6. This can be changed based on hardware, cable length and type,
and system requirements.
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Terminating impedance will be required if this is the end of a Genius bus communication link.
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Is expanded I/O addressing enabled. Refer to GFK-0171.
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Device number defaults to 31. If there is no other Genius bus controller than this number need not
be changed.
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CPU shutdown mode allows a Genius bus controller failure to shutdown the CPU scan. This
requirement should be determined by the system designer.
Software requirements
The next step is to program a DPREQ instruction directly connected to the power rail into the PLC.
Details of this can be found in chapter 7 of the GE Fanuc document GFK-0171.
R0290
|-[DPREQ]
This example uses R0290 as the starting address of the command. The registers have the following
values:
R0290 = 1001 because the I/O hardware address in our example is 1
R0291 = 3 is the write configuration command number.
R0292 = leave blank, PLC will write status information into this register.
R0293 = 1 in our example. This is the I/O reference of the bus controller. This is the same as R0290
above, except that 1000 is not added to the D DPREQ.
R0294 = 301 the pointer value of the first register where the configuration data for the bus controller
begin.