Addressing; Basic Rules For Addressing - Festo CPX-FB36 Instruction Manual

B. Address assignment of the CPX terminal
B.2

Addressing

B.2.1 Basic rules for addressing
Sequence of addressing
1. I/O diagnostics interface
2. Analogue modules
3. Technology modules
4. Digital modules
1) Depending on the setting, this address range can also be occupied by status bits (
and Tab. 1/3).
Tab. B/8: Sequence of addressing
B-12
– The address assignment of the inputs does not depend on
the address assignment of the outputs.
– Counting from left to right, addressing bytewise: Modules
with less than 8 bits occupy an 8-bit address space, but
do not use it completely.
– The bus node counts as a module with 0 inputs and 0 out­
puts when the status bits and the I/O diagnostic interface
are deactivated.
– The I/Os of different module types are assigned separ­
ately from each other.
The sequence in the following table applies:
Description
1)
Can be activated by DIL switch. If it is activated, it will occupy
the first 16 inputs and outputs in the address range.
Modules with analogue inputs/outputs
e.g. CP interface, control block CPX-FEC
Modules with digital inputs/outputs
è
note above
Festo CPX-FB36-EN en 1611a English