MODBUS_RTU_GET_RTS(3) Libmodbus Manual MODBUS_RTU_GET_RTS(3) NAME modbus_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 ALSO modbus_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)[top]
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