Bus Configuration Without Cmd Software - Festo CPX-M-FB20 Manual

2. Commissioning

2.1.7 Bus configuration without CMD software

Festo P.BE-CPX-FB20/21-EN en 1202a
Logical addressing
In the case of the bus configuration without CMD software,
the following specifications must be known or ascertained for
each bus slave. Configure the CPX terminal as follows:
ID code (Ident. code)
•
– CPX terminal only with outputs
CPX terminal only with inputs: ID code 2
–
– CPX terminal with inputs and outputs
1)
Valve coils and/or electric outputs
Process data channel:
•
– Calculate the number of I/Os per valve terminal.
The number of inputs and/or outputs must be
rounded up to the next word limit.
If the number of input bits differs from the number of
output bits, the greater number is in each case
decisive for the entry of the process data channel bits.
– Please note the following:
Diagnostics mode 3 occupies an additional 16 inputs.
Diagnostics mode 2 and 4 occupy an additional
32 inputs.
– Assign logical IN and OUT addresses to each slave.
1)
: ID code 1
D
D
1)
: ID code 3
D
2-29