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serial

Serial

Used to set parameters related to the device's two serial ports. COM1 is RS-232 only and COM2 is RS-232 and RS-485.

Basic

These are the most often used set of serial parameters.

Serial Basic

Baud Rate Baud rate in bits per second (bps). Most common is 9600 bps.
Parity Type of parity. N = no parity, O = odd parity, E = even parity. Most common is 'N'.
Data Number of data bits. Most common is 8.
Stop Number of stop bits. Most common is 1.

Advanced

Each port has the same set of parameters arranged in a row. The exceptions are COM0 and COM2. COM0 does not have RTS keying. COM2 has RS-485 whereas the other serial ports do not.

Serial Advanced

EoT Delay Delay in milliseconds used to mark the end of a transmission. Modbus standard is 3.5 character times or approximately 4ms at 9600 baud.
RTS Keying Used to enable and disable flow control.
Key Delay Milliseconds of key delay to wait prior to sending the message.
RS-485 There are two COM2 serial ports on the RIO. One supports RS-232 and the other supports RS-485. This option is used to enable RS-485 two wire or four wire. If 'NONE' is selected the RS-485 serial port is not enabled and only the RS-232 port can be used. The RS-232 port is always enabled and can be used even when RS-485 is disabled.
serial.txt · Last modified: 2017/07/24 17:25 by dmeier