Horner APG XL4 OCS - Manual (Page 41)

MAN0964-01-EN CH.10
June 29, 2012 Page 41 of 122
CHAPTER 10: GENERAL I/O
Note: Each XL4 OCS unit is sent with a datasheet in the box. The datasheet is the first document you
need to refer to for model-specific information related to XL4 OCS models such as pin-outs, jumper
settings, and other key installation information. Visit our website to obtain datasheets, user
documentation, and updates.
10.1
Overview
The XL4 OCS is a compact unit that contains high density, very versatile I/O. Using the I/O properly
requires wiring to the proper terminals, configuring jumpers inside the XL4 OCS unit and configuring
Cscape properly. This section will offer some tips and suggestions to configure the I/O properly. For the
register mapping of the I/O, refer to the
Index at the end of this manual for the pages referencing register
mapping.
10.2
Removing the XL4 OCS I/O Cover
Some I/O configurations require jumper settings to be changed inside the XL4 OCS unit. Examples of
these settings are setting positive or negative logic on digital inputs or setting current or voltage on analog
inputs.
Each XL4 OCS I/O jumper is set to a factory default. Refer to the data sheet for your XL4 OCS model to
find the default setting to determine if a jumper change is necessary for your application.
To remove the I/O cover of the XL4 OCS, remove the four (4) Phillips screws from the I/O back. It may
help to place the XL4 OCS unit face down on a clean work surface. Once the four screws are removed
the I/O cover can be lifted straight off.
Figure 10.1 – Removing the I/O Cover
Warning: Power, including I/O power must be removed from the unit prior to removing the
back cover. Failure to do so could result in electrocution and/or damage to equipment.