EUCHNER EKS FSA with Profibus-DP Interface - Manual (Page 8)

Manual EKS Electronic-Key Adapter Profibus-DP
3 Function
3.1 Functional description
3.1.1 Common functions of EKS Standard and version EKS FSA
The EKS is used for access control and monitoring on controllers or parts of controllers for machine
installations.
Instead of passwords, coded Electronic-Keys are assigned. In this way unauthorized access to control and
display systems is prevented to the greatest possible extent.
The EKS uses a non-contact, inductive read/write identification system.
It comprises:
f Electronic-Key
f Electronic-Key
adapter
The user is responsible for organizing the programming of the application, integration in an overall system and
the assignment and use of the freely programmable memory in the Electronic-Key.
Information!
For easier organization and management of your Electronic-Keys and the data they contain,
EUCHNER also offers the Electronic Key Manager (EKM) software. To enter data in the EKM
software, an Electronic-Key adapter with serial interface or USB interface must be in operation
on the PC.
Signal
Processing
Micro
Controller 1
Micro
Controller 2
12 MHz
Siemens
SPC3
48 MHz
Electronic-
Key
DC 24 V /
DC 5 V
RS485
Power Supply
DC 24 V
Profibus-DP
Connection
Figure 1: Block diagram EKS
The Electronic-Key adapter is a read/write system with integrated evaluation electronics and interface.
Due to the transfer of data without using any contacts, from the access side the Electronic-Key adapter has the
high degree of protection of IP 67, i.e. it is suitable for industrial use. The Electronic-Key adapter can be
installed in accordance with DIN 43700 in any control panel with a standard cut-out of 33 mm x 68 mm. The
Electronic-Key adapter is fastened by means of screw clamp elements from the rear side of the panel in order to
exclude unauthorized manipulation from the operator side.
092009-03-10/07 Subject to technical modifications Page 8 / 36