Festo CPX-FB14 Description page 36

1. Installation
1-22
Note
(1) An activated diagnostics mode reduces the available
address space in the PDO 4
Use of the diagnostics mode (status bits or I/O diagnostic
interface) occupies 16 I or 16 I/O bits in the PDO 4. In
combination with technology modules, it thus reduces the
number of I/O bits which are available for module commu­
nication. In this way, the number of addressable modules
is reduced in favour of additional status or diagnostic in­
formation.
Take account of this fact for the planning of your CPX ter­
minal.
(2) Subsequent activation of the diagnostics mode
requires reconfiguration
The CPX-internal I/O image can be displaced during
subsequent activation of the diagnostics mode (status bits
or I/O diagnostics interface). Restart the CPX terminal with
Power OFF/ON.
Festo P.BE-FB14-EN en 1411d English