E-9
6
5
9
1
ST402-AG41-24V
Serial Interface
RS-485(MPI) Interface (X)
*2
*1 When providing power via the Seimens Co.'s Profibus connector, power cannot be connected
to the Device/PLC.
*2 The connector of the ST side is socket type.
Recommended Connector : Dsub 9 pin
pin-type XM2A-0901
<made by OMRON Corp.>
Recommended Cover : Dsub 9 pin cover XM2S-0913 <made by OMRON Corp.>
• When using an MPI interface, the Seimens Co.'s Profibus connector can be used.
• Use inch-type screws (#4-40UNC) as set screws.
• This unit is not equipped internally with termination resistance. Attach termina-
tion resistance to the cable.
Expansion Serial Interface
RS-422 Interface (Y)
Pin Connection
Pin No.
Signal
Signal Name
Direction
1
RDA
Receive data A
Input
2
RDB
Receive data B
Input
3
SDA
Send data A
Output
4
ERA
Enable receive A
Output
5
SG
Ground
-
6
CSB
Clear send B
Input
7
SDB
Send data B
Output
8
CSA
Clear send A
Input
9
ERB
Enable receive B
Output
*1
*1 The connector of the ST side is pin type.
Recommended Connector : Dsub 9 pin
socket-type XM2D-0901
<made by OMRON Corp.>
Recommended Cover : Dsub 9 pin cover XM2S-0913 <made by OMRON Corp.>
• Use inch-type screws (#4-40UNC) as set screws.
• This unit is not equipped internally with termination resistance. Attach termina-
tion resistance to the cable.
Pin Connection
Pin No.
Signal
Signal Name
Direction
1
NC
No connection
-
2
NC
No connection
-
3
LINE(+)
Line (+)
In/Output
4
RTS
Request Send
Output
5
SG
Ground
-
6
5V
5V External Output
*1
Output
7
NC
No connection
-
8
LINE(-)
Line (-)
In/Output
9
NC
No connection
-
6
5
9
1
