Festo CPX-CTEL-4-M12-5POL, Описание

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3 Installation
Festo – P.BE-CPX-CTEL-EN – 1601b – English 21
3.4 Connecting the devices
A total of up to 4 I-Port devices can be connected to one CTEL master module.
The devices are connected to the CTEL master module via I-Port connecting cables from Festo
(
è
2.1 Overview of the CTEL system and 3.3 I-Port connecting cables).
If errors occur on several devices simultaneously, only the diagnostic/error message of
the device with the highest priority is displayed
(
è
5.2.1 Priorities of the diagnostic/error messages).
After this error is eliminated, the error with the next lowest priority is displayed. The prior­
ity of the connected devices results from the number of the I-Port used. The device con­
nected at I-Port 1 has the highest priority, while the device at I-Port 4 has the lowest pri­
ority when displaying a diagnostic/error message. If the CTEL master module is con­
figured to “I/O mixed operation”, diagnostic/error messages from inputs have priority
over diagnostic/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 connector of the I-Port connecting cables to the connection 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.