Introduction

Placeholder module

The EJ9001 placeholder modules are used to close temporary gaps in the module strands. Gaps in the module strand cause interruption in EtherCAT communication and must be equipped with placeholder modules.

In contrast to the passive terminals of the EL series, the placeholder modules actively participate in the data exchange. Several placeholder modules can therefore be connected in series, without impairing the data exchange.

The placeholder modules can be replaced according to the specification of the signal distribution board.

Using placeholder modules and reserve slots for unused slots enables the use of one single distribution board for several variants of machines with the same basic function.