Electronic Module; Interlinking Block - Festo CPX System Manual

1. Overview of components

Electronic module

Interlinking block

1−18
The electronic module contains the electronic components.
It is connected to the interlinking block and to the connection
block by means of electric plug connectors. Many electronics
modules can be combined with various connection blocks.
In the case of the CPX bus node, the connection technology is
an integral part of the module; in other words, the connection
block and the electronics module form a single unit.
The lower part of the housing of the electric modules is called
the interlinking block. Interlinking blocks serve for the electri
cal and mechanical linking of the modules. They can provide
a connection for supplying the operating voltage and/or load
voltage and transmit the operating and load voltages to the
neighbouring modules (see section 1.1.3). In the plastic ver
sion of the interlinking blocks, the mechanical link between
the electric modules is made via tie rods (see section 2.2.1).
Interlinking blocks in the metal version are bolted together
individually (see section 2.3).
You can replace electronics modules with connection blocks
during servicing without the need to dismantle the CPX ter
minal or loosen individual connections. Instead the entire
connection block is removed, the electronics module is re
placed and the connection block is placed into position again
(see manual for the CPX I/O modules", type P. BE−CPX−
EA−...).
Festo P.BE−CPX−SYS−EN en 0902e