Festo CPX-FB13, Manual

Page: 21 / 63

3 Installation
Festo – P.BE-CPX-CTEL-EN – 1411a – English 21
3.4 Connection of the devices to the CTEL master module
A total of up to 4 I-port devices can be connected to one CTEL master module.
The devices are connected via Festo I-port connecting cables to the CTEL master module
(
è
2.1 Overview CTEL system and 3.3 I-port connecting cables).
If an error occurs on several devices simultaneously, only the diagnostic/error message of
the device with the highest priority is passed on
(
è
5.2.1 Priorities of the diagnostics/error messages).
After this error is eliminated, the error with the next lowest priority is displayed.
The priority of the connected devices results from the number of the used I-port. The
device at I-port 1 has the highest, the device at I-port 4 the lowest priority in representing
a diagnostic/error message.
If the CTEL master is configured to “I/O mixed operation”, diagnostics/error messages
from inputs have priority over diagnostics/error messages from outputs.
With use of more than one CTEL master module in a CPX terminal, the module that is mounted closer to
the CPX bus node has the higher priority.
The result of this is that devices with process-critical functions must be connected to the
I-ports as high a priority as possible.
Connect devices:
1. Connect devices with the I-port connecting cables to the CTEL master module corresponding to their
priority (see above).
2. Tightly screw the plug of the I-port connecting cable to the socket of the CTEL master module by
using the union nut. In this way the electrical contact is guaranteed.
3. With the inscription labels (type IBS 6x10 or IBS 9x20), mark the I-port to which the device is con­
nected. In this way you can avoid confusion during later repair and maintenance work.