Spectrum Controls 1769 Series User Manual page 19

The module can be attached to the controller or an adjacent I/O module before or
after mounting. For mounting instructions, see Panel Mounting Using the
Dimensional Template or DIN Rail Mounting. To work with a system that is
already mounted, see Replacing a Single Module within a System.
The following procedure shows you how to assemble the Compact I/O system.
1. Disconnect power.
2. Check that the bus lever of the module to be installed is in the unlocked
(fully right) position.
If the module is being installed to the left of an existing module, check
NOTE
that the right-side adjacent module's bus lever is in the unlocked (fully
right) position.
3. Use the upper and lower tongue-and-groove slots (1) to secure the
modules together (or to a controller).
4. Move the module back along the tongue-and-groove slots until the bus
connectors (2) line up with each other.
5. Push the bus lever back slightly to clear the positioning tab (3). Use your
fingers or a small screwdriver.
6. To allow communication between the controller and module, move the
bus lever fully to the left (4) until it clicks. Ensure it is locked firmly in
place.
Chapter 2: Installation and Wiring
User's Manual Pub. 0300244-02 Rev. A
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