Siemens SIMATIC ET 200S Manual page 76

Configuration Options
Table 3-4 Electronic modules and the applications for which they are suitable
•
Detection and evaluation of
path positions by means of
absolute position encoders absolute position encoders
(SSI)
•
Simple positioning tasks
•
Driving power circuits of
stepper motors
•
Positioning stepper motors
•
Output of pulses in 4
different operating modes
•
Controlled positioning,
incremental encoder
5V differential signals
•
Controlled positioning, SSI
sensor
•
RS232C/RS422/RS485
serial data transmission i l d t t i i
•
Reservation of a slot for
any electronic module l i d l
3-12
Applications
Absolute position encoder:
13 bits/21 bits/25 bits
5 V pulses up to 204 kHz
Min. pulse duration of
200 µs
Drive controlled by means
of digital outputs: travel
minus, travel plus, rapid
traverse/creep speed
Drive controlled by means
of analog output
+10 V
Drive controlled by means
of digital outputs: travel
minus, travel plus, rapid
traverse/creep speed
Drive controlled by means
of analog output
+10 V
ASCII and 3964(R) protocol
Protocol mode and USS
Width 15 mm
Width 30 mm
Electronic module
1SSI
EM 1STEP 5V/204kHz
2PULSE
1POS INC/Digital
1POS INC/Analog
1POS INC/Digital
1POS INC/Analog
1SI 3964/ASCII
1SI Modbus/USS
RESERVE
ET 200S Distributed I/O System
EWA-4NEB 780602402-12