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Man Pages


Manual Reference Pages  -  MODBUS_RTU_GET_RTS (3)

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NAME

modbus_rtu_get_rts - get the current RTS mode in RTU

CONTENTS

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:

o

o MODBUS_RTU_RTS_NONE

o

o MODBUS_RTU_RTS_UP

o

o 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 St\(&#146;ephane Raimbault <\m[blue]stephane.raimbault@gmail.com\m[][1]>

NOTES

1. stephane.raimbault@gmail.com  mailto:stephane.raimbault@gmail.com
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libmodbus 3&.1&.0 MODBUS_RTU_GET_RTS (3) 10/06/2013

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