-37-
No.EX##-OMU0020-A
6.5. Block diagram
Following figure shows the block diagram of the EX245-SPN1
Fig. 6-4 Block diagram of the EX245-SPN1
TX
RX
Bus
Module
interface
24
V
(
US
1
)
0
V
(
US
1
)
0
V
(
US
2
)
24
V
(
US
2
)
FE
Bus
µ
P
Short circuit
protection
DC
/
DC
0
V
(
US
2
)
1
OUT
[
0
]
Solenoid valve
interface
0
V
(
US
2
)
OUT
[
31
]
34
2
3
・
・
・
・
・
・
・
・
・
・
・
・
Output circuit
/
Bus interface
Push Pull connector
(
SCRJ
)
①
②
Power
Push Pull connector
(
24
Volt
)
0
V
(
US
1
)
24
V
(
US
1
)
24
V
(
US
2
)
0
V
(
US
2
)
FE
④
②
⑤
①
③
TX
RX
Bus
②
①
ERTEC
200
Push Pull connector
(
SCRJ
)
Port
1
(
XF1
)
Port
2
(
XF2
)
Power
Push Pull connector
(
24
Volt
)
0
V
(
US
1
)
24
V
(
US
1
)
24
V
(
US
2
)
0
V
(
US
2
)
FE
④
②
⑤
①
③
(XD1)
(XD2)