MODBUS_RTU_GET_RTS(3) Libmodbus Manual MODBUS_RTU_GET_RTS(3)NAMEmodbus_rtu_get_rts - get the current RTS mode in RTU
SYNOPSIS
int modbus_rtu_get_rts(modbus_t *ctx);
DESCRIPTION
The modbus_rtu_get_rts() function shall get the current Request To Send
mode of the libmodbus context ctx. The possible returned values are:
· MODBUS_RTU_RTS_NONE
· MODBUS_RTU_RTS_UP
· MODBUS_RTU_RTS_DOWN
This function can only be used with a context using a RTU backend.
RETURN VALUE
The modbus_rtu_get_rts() function shall return the current RTS mode if
successful. Otherwise it shall return -1 and set errno.
ERRORS
EINVAL
The libmodbus backend is not RTU.
SEE ALSOmodbus_rtu_set_rts(3)AUTHORS
The libmodbus documentation was written by Stéphane Raimbault
<stephane.raimbault@gmail.com[1]>
NOTES
1. stephane.raimbault@gmail.com
mailto:stephane.raimbault@gmail.com
libmodbus 3.1.0 10/06/2013 MODBUS_RTU_GET_RTS(3)