RT430
RT430-TM-EN-5
39
Figure 19: Serial port RS232 e RS422/485
The serial port is compatible with RS232 and RS422/485 standard, and it has the following pinout:
TABLE 21: Serial port pinout
DB9 male
Sinal
1
-
2
RXD
3
TXD
4
OUT (RS232 level output with user-programmable signal)
5
GND
6
-
7
V+ (RS232 level voltage reference of the internal converter)
8
422/485 TX+
9
422/485 TX-
The bitrate, format (number of data bits, party, number of stop bits) and datagram type can be configured
using the Web Interface, as well as the type of signal transmitted by the pin OUT (pin 4).
Pins 2, 3 and 5 uses RS232 interface.
Pins 8 and 9 uses RS422 or RS485 interface.
For existing datagrams details, see
. For serial port configuration, see
Chapter 4
illustrates application architectures using the serial port with RS232 and RS485 standard.