turck BL67 - Page 393

D300529 0115 - BL67 I/O modules
12-45
BL67-1SSI
The module is provided with two RS422 interfaces that form one SSI interface. One RS422 interface
works as the clock generator for reading the data, which is then received on the other RS422 interface.
Figure 12-22:
Block diagram
BL67-1SSI
2
3
4
M12-8
V
0
V
sens
1
0 V
T +
T -
μP
5
6
D -
D +
PE
GND
BL67-
system bus
communi-
cation
bus
module bus
interface
=
=
V
sens