Important:
Electrostatic discharge can damage controller components. Use proper
electrostatic discharge precautions during installation, setup, and servicing to avoid damaging
the controller.
Important:
Disconnect all power sources to the controller before removing cover and
changing the position of any jumper or the EOL switch on the controller. Failure to disconnect
power before changing a jumper or EOL switch position can result in damage to the controller
and void any warranties.
The controller cover is held in place by four plastic latches that extend from the base and snap
into slots on the inside of the housing cover.
To remove the controller cover:
1. Place your fingernails under the two cover lift tabs (Figure 3) on the sides of the housing cover
and gently pry the top of the cover away from the base to release the cover from the two
upper latches.
2. Pivot the top of the cover further to release it from the lower two latches.
3. Replace the cover by placing it squarely over the base, and then gently and evenly push the
cover on to the latches until they snap into the latched position.
Cover Removed EOL switch
Figure 11: FX-PCX17 or FX-PCX27 with cover removed showing EOL switch location
Setting the End-of-Line (EOL) switch
About this task:
Each controller has an EOL switch, which, when set to ON, sets the controller as a terminating device on the
bus. See Figure 11 for the EOL switch location. The default EOL switch position is Off.
FX-PCX17 and FX-PCX27 Expansion Input/Output Module Installation Instructions
24
