Rockwell Automation Chassis Models - Manual (Page 17)

Chassis Models October 2005 – Issue 4 17
Triguard SC300E Chassis Models
Areas ‘b’ and ‘c’ - Field I/O
The connectors in areas ‘b’ and ‘c’ are the field connectors for the I/O modules and, apart from
pin 1c which is always chassis earth, the pin functions depend upon the module in use in each
slot. Refer to the User Manual for the module for details of the pin functions. Figure 2-3 shows
the layout of the connectors; ‘x’ signifies a pin available for use, ‘o’ signifies that the pin is not
fitted. None of the pins in the middle column are fitted. The ‘rear plug up’ shrouds (Figure 2-4)
fitted to all Field I/O connectors support connector retention. When I/O modules are fitted as a
Hot Repair pair, special Hot Repair Adaptors are fitted to the appropriate Field connectors (Ref.
Section 1.6, Associated documentation).
Figure 2-4. Field connector shroud and coders
Area ‘d’ - System bus
The three connectors in area ‘d’ connect the processor modules and interface modules to the
system bus. Pins 7 to 10 in columns b and c of the connectors are used for chassis address
setting by linking them together. Figure 2-5 shows the connector layout and Figure 2-6 shows
the identification link chassis address coding for all the chassis in a system.
NOTE - Default setting is with no links fitted.