Rockwell Automation T80007 User Manual
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AN-T80007
Application Note
Smart Slot Philosophy
For a Smart Slot configuration, the secondary slot is not required to be unique to each primary slot.
Instead, a single secondary slot can be shared among many primary slots. This technique provides
the highest density of modules to be fitted in a given physical space. Smart Slot between chassis can
be performed if the chassis are version 2 (or higher) as these have the connector fitted to enable
connection of a TC-006 that ensures the IMB 0V of each chassis is at the same potential.
Issue Record
Issue
Number
1 Nov 2004 Julia Bourn Initial Issue
2 Feb 2007 Nick Owens Ray Brown Peter Stock Format
Issue 2 Feb 07 AN-T80007 1
Date Revised by Technical
Check
Authorised by Modification
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AN-T80007 Smart Slot Philosophy
Implementation
Location of Smart slots
Design considerations should be given to the location of smart slots within the system. One option is to
allocate a spare slot on each chassis or per module type. Another option is to allocate one smart slot
per system panel; if this option is selected then the IMB 0V of each chassis needs connecting together
using a TC-006 cable. Each chassis (processor and expander) requires a TC-006 to connect to the
Molex socket on the back of each chassis and the crimps on the other end are taken to terminals that
are commoned together, this ensures that each isolated IMB 0v is at the same potential. Refer to PDTC000 for further information on TC-006.
Molex socket for
IMB 0V connector
TC-006
Figure 1 Molex Sockets on the rear of each processor and expander chassis
Issue 2 Feb 07 AN-T80007 2
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