Siemens 6ES7647-0BA00-0YA2 - Internal Interfaces

Hardware descriptions
10.3 Internal interfaces
SIMATIC IOT2050
56 Operating Instructions, 03/2020, A5E39456816-AA
Pin
Short description
Meaning
8
CTS
Clear to send (I)
9
RI
Incoming call (I)
Assignment RS 422
Pin
Short description
Meaning
1
TX-
Transmitted data - (O) for full-duplex mode
2
TX+
Transmitted data + (O) for full-duplex mode
3
RX+
Receive data + (I) for full-duplex mode
4
RX-
Receive data - (I) for full-duplex mode
5
M
Signal ground
6
nc
7
nc
8
nc
9
nc
Assignment RS 485
Pin
Short description
Meaning
1
Data-
Transmit / receive data - (I/O) for half-duplex mode
2
Data+
Transmit / receive data+ (I/O) for half-duplex mode
3
nc
4
nc
5
M
Signal ground
6
nc
7
nc
8
nc
9
nc
10.3 Internal interfaces
10.3.1 Arduino shield interfaces
The tables below show the pin assignment of the interfaces of the Arduino shield, depending
on the operating mode.
The position of the interfaces and Pin 1 of the respective interface is available in section
"Motherboard (Page 52)".