Rockwell Automation 57C620 AutoMax Programming Executive Version 3.8 - Manual (Page 150)

10Ć2 AutoMax Programming Executive Version 3.x
P/S 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
10
10 Slot Rack
16
16 Slot Rack
6
6 Slot Rack
Figure 10.1 Ć Rack Slot Numbers
10.2 Additional Data Storage in a Rack
Containing a Single Processor Module
A Common Memory module M/N 57C413A or 57C423 can be used
to extend the amount of data storage available in a rack containing a
single Processor module. In this configuration, the M/N 57C413 or
57C423 Common Memory module makes available an additional
128K of memory to use for storing common variables. You cannot
use the Common Memory module to store application tasks or local
variables. See instruction manual JĆ3675 for more information on
common and local variables.
10.3 Multiple Processor Modules in a Rack
Additional Processor modules increase the processing capability and
the total memory available in any one rack for application tasks.
Multiple Processor modules in a rack require the use of a
Common Memory module in slot 0, where it serves as a bus arbiter
and stores data common to all the Processor modules. The Common
Memory module can be used to oversee communications for up to
four Processor modules, the maximum per rack. The Processor
modules can occupy slots 1Ć4 only. In a rack containing multiple
Processors, slot 1 must either contain a Processor module or be
empty.
In this configuration, the Common Memory module, rather than a
Processor module, also stores the configuration data. See JĆ3636 for
more information about the Common Memory module.
If you are using M/N 57C430A or 57C431 and M/N 57C435
Processors in the same rack, make sure the leftĆmost Processor
is a M/N 57C435 Processor. This will allow all communication
between the AutoMax rack and the personal computer to occur at
19200 baud.