
Manual EKS Ethernet TCP/IP
Page 10/38
Subject to technical modifications
2547185-01-10/22
Figure 2: Illustration of an Electronic-Key adapter with Electronic-Key in the modular version
The Electronic-Keys are tag shaped. The complete transponder with memory chip and antenna is integrated
into the Electronic-Key. The transponder does not have a battery.
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 the version EKS
FSA
The version EKS
FSA
has additional switching contacts (semiconductor relay) that are switched off as long as
there is no Electronic-Key in the Electronic-Key adapter or if the Electronic-Key cannot be read.
Device in compact version: switching contacts LA1/LA2 and optionally LB1/LB2
Modular version of the device: only switching contact LA1/LA2
The switching contacts are electrically isolated from the device electronics and from each other. Either AC or
DC can be switched.
Each of the 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 3: 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 chapters 4.4 and 4.5).
Information!
The switching contacts
FSA
close when the Electronic-Key is in place, irrespective of the data allocation
in the memory.