Rockwell Automation 1769-BOOLEAN Compact I/O BOOLEAN Module Installation Instructions - Manual (Page 7)

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Publication 1769-IN077A-EN-P - May 2006
7. Attach an end-cap terminator (5) to the last module in the system by using the
tongue-and-groove slots as before.
8. Lock the end-cap bus terminator (6).
Replace a Single Module Within a System
The module can be replaced while the system is mounted to a panel (or DIN rail).
1. Remove power.
Refer to Remove Power on page 3.
2. Remove the upper and lower mounting screws from the module (or open the DIN
latches using a flat-blade or Phillips-style screwdriver).
3. Move the bus lever to the right to disconnect (unlock) the bus.
4. On the right-side adjacent module, move its bus lever to the right (unlock) to
disconnect it from the module to be removed.
5. Gently slide the disconnected module forward.
If you feel excessive resistance, check that the module is disconnected from the bus
and that both mounting screws are removed (or DIN latches opened).
6. Be sure that the bus lever on the module and on the right-side adjacent module are in
the unlocked (fully right) position before installing the replacement module.
7. Slide the replacement module into the open slot.
8. Connect the modules by locking (fully left) the bus levers on the replacement module
and the right-side adjacent module.
9. Replace the mounting screws (or snap the module onto the DIN rail).
IMPORTANT
You must use a 1769-ECR or 1769-ECL right or left end cap to terminate
the end of the serial communication bus.
TIP
It may be necessary to rock the module slightly from front to back to
remove it, or, in a panel-mounted system, to loosen the screws of adjacent
modules.