Festo CPX-FB13, Manual

Page: 15 / 63

2 System overview, CTEL system
Festo – P.BE-CPX-CTEL-EN – 1411a – English 15
2.4 Addresses
The CTEL master module can make available a total of up to 32 bytes for inputs and 32 bytes for out­
puts. The precise amount of the I/O bytes made available depends on the requirements of the connec­
ted devices or of the correspondingly selected operating mode.
2.4.1 I/O configuration presettings
The address space that the CTEL master module makes available and assigns accordingly in the CPX
system can be configured according to 13 different presettings (
è
Tab. 2.4). These presettings corres­
pond to the selection options that are supported within the configuration files for the respective host
system (
è
3.6).
There are 4 presettings available in each case for operation as “pure input module”, “pure output mod­
ule” and for “mixed operation”.
In addition, there is a configuration for operation without connected devices.
Operation as Inputs
1)
Outputs
1)
Unused module
(no devices connected)
2)
0 bytes 0 bytes
Pure output module 0 bytes 8 bytes
0 bytes 16 bytes
0 bytes 24 bytes
0 bytes 32 bytes
Pure input module 8 bytes 0 bytes
16 bytes 0 bytes
24 bytes 0 bytes
32 bytes 0 bytes
Mixed operation 8 bytes 8 bytes
16 bytes 16 bytes
24 bytes 24 bytes
32 bytes 32 bytes
1) Related to the complete CTEL master module
2) Only available in automatic configuration
Tab. 2.4
The I/O lengths listed here are the sum of the bytes available for all I-ports together.
Which of these configuration presettings the CTEL master module uses can be determined manually
(through the user) or automatically (through the module itself ), dependent on the operating mode.