SSI interface
4
The modular system
4.22
L
4.22−2
EDSPM−TXXX−9.0−11/2009
Status display and terminal assignment
SSI
Cl+
Cl-
D+
D-
Us
M
.0
.1
F
L+
1
2
3
4
5
6
7
8
9
L
10
EPM – T411 1A. 10
0
1
2
3
4
5
6
.
2
1
3
5
7
9
10
4
6
8
PES
PES
–
–
+
+
DC 24 V
(DC 18
… 28.8 V)
µP
Z
SSI
epm−t124 epm−t130
Fig. 4.22−2 Front view and connection of SSI interface
Status display L+; LED (yellow) is
lit when a supply voltage is applied
Terminal strip assignment details
1 DC 24 V supply voltage
2 Clock pulse
Status display Cl+; LED (yellow) is
lit with an output clock signal
3 Clock pulse converted
4 Data
5 Data converted
Status display D+; LED (yellow) is
lit when the SSI sensor is receiving
data
6 DC 24 V supply voltage for
SSI sensor
7 GND (reference potential of
supply voltage for SSI sensor)
Status display .0; LED (green) is lit
when a HIGH level is applied to or
output at input/output .0
8 Input/output .0
9 Input/output .1
Status display .1; LED (green) is lit
when a HIGH level is applied to or
output at input/output .1
10 GND (reference potential for
supply voltage)
Connection to backplane bus
SSI
SSI sensor
Status display F; LED (red) is lit
when the inputs / outputs .0 or .1
are short−circuited or overloaded
Z
Load