SSI interface
5
The modular system
5.14
l
5.14-1
EDSPM-TXXX-3.0-04/2004
5.14 SSI interface
An SSI interface (Synchronous Serial Interface) is a synchronously pulsed, serial
interface.
SSI interface module permits the connection of absolutely coded sensors with SSI
interfaces. The module converts the serial information of the sensor into a parallel
information and makes it available to the control.
Note!
The chapter ”Parameter setting” describes how to parameterise
the module.
z
1 SSI channel
z
Data transmission in the Gray code or binary code (safe data collection by
using the Gray code)
z
Adjustable baud rate of 100 ... 600 kbits/s
z
Maximum data integrity by using symmetrical clock and data signals
z
Isolation from receiver and encoder by optocoupler
z
Two parameterisable digital outputs, one of which parameterisable as hold
input to ” freeze” the current SSI encoder value
z
Integrated power supply unit of the interface electronics and the connected
sensor
z
LED shows the status
0
1
2
epm-t015
Fig. 5.14-1 Overview of SSI interface
LED for status display
Bit address label card
Plug-in terminal strip
Description
Features
Overview
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