Siemens SIMATIC IOT - UART Debug

Hardware descriptions
10.5 Internal interfaces
SIMATIC IOT2050
Operating Instructions, 03/2024, A5E39456816-AF
119
Pin
Operating mode
4
17
A3
5
18
A4
SDA
6
19
A5
SCL
X13
Pin
Operating mode
DIGITAL
ANALOG
POWER
SERIAL
SPI
I2C
PWM
1
2
IOREF
3
RESET
4
3.3 V
5
5 V
6
GND
7
GND
8
VIN
X15 (ICSP)
Pin
Operating mode
DIGITAL
ANALOG
POWER
SERIAL
SPI
I2C
PWM
A1
12
MISO
B1
5 V
A2
13
SCK
B2
11
MOSI
A3
RESET
B3
GND
10.5.2 UART Debug
X14
Pin
Assignment
1
GND
2
RTS_N
3
n. c.
4
RxD
5
TxD
6
CTS_N