Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 332)

Appendix
H
Publication 2755-833
Electrical Interfaces for
AutoLoad Applications
There are three ways to activate the AutoLoad function described in
Chapter 5:
1. 12 VDC power supply terminal on I/O Module board connects to
input module (in position 8 of I/O Module Board) and a normally
opened (N.O.) contact, providing power to the input module. See
Figure H.1.
2. External AC or DC power source connects to input module (in
position 8 of I/O Module Board) and a normally opened (N.O.)
contact, providing power to the input module. See Figure H.2
3. A normally opened (N.O.) contact connects directly to pins in
AUX Port Connector. This method does not require an I/O
Module Board with installed input module or a power source.
See Figure H.3.
AutoLoad Input Module Application (powered internally)
Figure H.1 illustrates the AutoLoad Input module application that is
powered internally. A DC input module is installed in position 8 of
the I/O Module Board. A switch (N.O. contact) provides input to the
module to load bar code data into the match code table. The module
and switch receive power from the 12 V DC terminal on the I/O
board.
Figure H.1 AutoLoad input module application (powered
internally)
– 8 + – +
12 V DC
Power
Source
Mechanical or
PhotoElectric Switch
Fuse
Connector Block
Enclosure
Conduit Hole
DC Input Module
MOD8 Only