modbus_rtu_set_rts_delay3
Set the rts delay in rtu
Usage
int modbus_rtu_set_rts_delay(modbus_t *ctx, int us);
Overview
The modbus_rtu_set_rts_delay() function shall set the Request To Send delay period of the libmodbus context ctx.
This function can only be used with a context using a RTU backend.
Return value
The modbus_rtu_set_rts_delay() function shall return 0 if successful. Otherwise it shall return -1 and set errno.
Errors
EINVAL
The libmodbus backend is not RTU or a negative delay was specified.
Releases
3 releases since Debian 10 (Buster); the text changed 2 times.