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.\"     Title: modbus_write_registers
.\"    Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 02/28/2020
.\"    Manual: libmodbus Manual
.\"    Source: libmodbus v3.1.6
.\"  Language: English
.\"
.TH "MODBUS_WRITE_REGISTE" "3" "02/28/2020" "libmodbus v3\&.1\&.6" "libmodbus Manual"
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.SH "NAME"
modbus_write_registers \- write many registers
.SH "SYNOPSIS"
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\fBint modbus_write_registers(modbus_t *\fR\fB\fIctx\fR\fR\fB, int \fR\fB\fIaddr\fR\fR\fB, int \fR\fB\fInb\fR\fR\fB, const uint16_t *\fR\fB\fIsrc\fR\fR\fB);\fR
.SH "DESCRIPTION"
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The \fBmodbus_write_registers()\fR function shall write the content of the \fInb\fR holding registers from the array \fIsrc\fR at address \fIaddr\fR of the remote device\&.
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The function uses the Modbus function code 0x10 (preset multiple registers)\&.
.SH "RETURN VALUE"
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The function shall return the number of written registers if successful\&. Otherwise it shall return \-1 and set errno\&.
.SH "SEE ALSO"
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\fBmodbus_write_register\fR(3) \fBmodbus_read_registers\fR(3)
.SH "AUTHORS"
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The libmodbus documentation was written by Stéphane Raimbault <stephane\&.raimbault@gmail\&.com>