Rockwell Automation 1769-HSC Compact High Speed Counter Module - Manual (Page 8)

8 Compact I/O High-speed Counter Module
Publication 1769-IN030B-EN-P - October 2010
System Planning
There are several factors to consider when planning your system:
•
A 1769-ECR (right-end cap) or 1769-ECL (left-end cap) is required to terminate the
end of the Compact I/O bus.
•
Each bank of Compact I/O modules must have its own power supply.
(A MicroLogix 1500 base unit acts as the power supply for modules directly connected
to it.)
•
The module has a distance rating of four, therefore the module must be within four
modules of the I/O bank’s power supply.
•
A Compact I/O power supply, or MicroLogix 1500 base unit, has limits in the amount
of 5V DC and 24V DC current that it can supply to modules in its I/O bank. These
limits depend on the catalog number (for example, 1769-PA2) of the supply. A bank of
modules must not exceed the current limits of the I/O bank power supply or
MicroLogix 1500 base unit.
•
Refer to these publications for more information:
–
Compact I/O Expansion Power Supplies Installation Instructions,
publication
1769-IN028
–
MicroLogix 1500 Programmable Controllers User Manual,
publication
1764-UM001
System Assembly
The module can be attached to an adjacent controller, power supply, or I/O module.
For mounting instructions, see ‘Panel Mounting’ on page 10 , or ‘DIN Rail Mounting’
on page 12 .
See ‘Replacing a Single Module within a System’ on page 12 to work with a system that is
already mounted.