Siemens 505-2571 - Manual (Page 19)

Installing the Module 2-6 SIMATIC 505-2571 Program Port Expander Manual
Getting Started (continued)
In Figure 2-3, the PPX:505-2571 module is installed into slot 1 and I/O base
0. For your particular installation, look in the chart at the slot address
occupied by the module in your configuration. If the WX and WY values are
the same as those shown in the example above and Special Function = YES
then the module is logged into the controller memory and is ready for
operation. If the line is blank or erroneous, re-check the module to ensure
tthat it is firmly seated in the I/O base slot. Generate the PLC I/O
configuration chart again by reading the I/O base. If still incorrect contact
the Siemens Energy & Automation, Inc., Technical Services Group in the
U.S.A. at 423–461–2522. In other countries, you can also contact the
nearest Siemens distributor.
Use the attached operator interface device(s) to send commands to the
controller and validate the resulting response. If you encounter a problem,
refer to Chapter 4, Troubleshooting.