EUCHNER EKS FSA with Ethernet Interface - Manual (Page 10)

Manual EKS Electronic-Key Adapter Ethernet
For operation, the Electronic-Key is inserted in the Electronic-Key adapter and is held in place by a spring clip.
The power supply for the transponder and the data are transferred contactlessly between the Electronic-Key
adapter and Electronic-Key.
Figure 1: Cut-away illustration of Electronic-Key adapter
The data carrier in the Electronic-Key is equipped with a combined memory:
f 116 bytes E²PROM (programmable) plus 8 bytes ROM (serial number)
On Electronic-Keys read/write with 116 bytes, the memory 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 two additional semiconductor relay outputs (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 semiconductor relay outputs are electrically isolated from the device electronics and from each other. Either
AC or DC can be switched.
Each of the outputs is operated with diversity by a dedicated processor that switches off the outputs on removal
of the Electronic-Key (see Figure Block diagram EKS FSA).
Figure 2: Block diagram EKS FSA
By separately evaluating channel LA and channel LB, the EKS FSA device can be used in conjunction with a
safe evaluation 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 section 4.2).
Page 10/40 Subject to technical modifications 100420-02-01/09