Manual EKS Electronic-Key Adapter USB
2094485-05-07/19
Subject to technical modifications
Page 9/34
The data carrier in the Electronic-Key is equipped with a combined memory:
116 bytes E
2
PROM (programmable) plus 8 bytes ROM (serial number)
The programmable memory of 116 bytes is organized in 4-byte blocks. This means a multiple of 4-byte-sized
blocks must always be written.
3.1.2 Additional functions of version EKS FSA (only in G01 housing)
The version EKS
FSA
has two additional switching contacts (semiconductor relay) (LA1/LA2 and optionally
LB1/LB2) that are switched off as long as there is no Electronic-Key in the Electronic-Key adapter or if it is not
possible to read the Electronic-Key.
The switching contacts are electrically isolated from the device electronics and from each other. Either AC or
DC can be switched.
Each of the switching contacts is operated with diversity by a dedicated processor that opens the contacts on
removal of the Electronic-Key (see figure Block diagram EKS
FSA
).
Figure: Block diagram EKS
FSA
Due to separate evaluation of channel LA and channel LB, the EKS
FSA
device can be used in conjunction with
a safe evaluation device in safety-related applications. Integrated voltage monitoring switches off the switching
contacts LA and LB if the power supply is outside the permitted tolerance (see chapter 4.2.1).
Information!
The switching contacts
FSA
close when the Electronic-Key is in place, irrespective of the data allocation
in the memory.