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docs(inputs.modbus): delete sample.conf (#12223)

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plugins/inputs/modbus/sample.conf
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# Retrieve data from MODBUS slave devices
[[inputs.modbus]]
## Connection Configuration
##
## The plugin supports connections to PLCs via MODBUS/TCP, RTU over TCP, ASCII over TCP or
## via serial line communication in binary (RTU) or readable (ASCII) encoding
##
## Device name
name = "Device"
## Slave ID - addresses a MODBUS device on the bus
## Range: 0 - 255 [0 = broadcast; 248 - 255 = reserved]
slave_id = 1
## Timeout for each request
timeout = "1s"
## Maximum number of retries and the time to wait between retries
## when a slave-device is busy.
# busy_retries = 0
# busy_retries_wait = "100ms"
# TCP - connect via Modbus/TCP
controller = "tcp://localhost:502"
## Serial (RS485; RS232)
# controller = "file:///dev/ttyUSB0"
# baud_rate = 9600
# data_bits = 8
# parity = "N"
# stop_bits = 1
## For Modbus over TCP you can choose between "TCP", "RTUoverTCP" and "ASCIIoverTCP"
## default behaviour is "TCP" if the controller is TCP
## For Serial you can choose between "RTU" and "ASCII"
# transmission_mode = "RTU"
## Trace the connection to the modbus device as debug messages
## Note: You have to enable telegraf's debug mode to see those messages!
# debug_connection = false
## Define the configuration schema
## |---register -- define fields per register type in the original style (only supports one slave ID)
## |---request -- define fields on a requests base
configuration_type = "register"
## --- "register" configuration style ---
## Measurements
##
## Digital Variables, Discrete Inputs and Coils
## measurement - the (optional) measurement name, defaults to "modbus"
## name - the variable name
## address - variable address
discrete_inputs = [
{ name = "start", address = [0]},
{ name = "stop", address = [1]},
{ name = "reset", address = [2]},
{ name = "emergency_stop", address = [3]},
]
coils = [
{ name = "motor1_run", address = [0]},
{ name = "motor1_jog", address = [1]},
{ name = "motor1_stop", address = [2]},
]
## Analog Variables, Input Registers and Holding Registers
## measurement - the (optional) measurement name, defaults to "modbus"
## name - the variable name
## byte_order - the ordering of bytes
## |---AB, ABCD - Big Endian
## |---BA, DCBA - Little Endian
## |---BADC - Mid-Big Endian
## |---CDAB - Mid-Little Endian
## data_type - INT16, UINT16, INT32, UINT32, INT64, UINT64,
## FLOAT32-IEEE, FLOAT64-IEEE (the IEEE 754 binary representation)
## FLOAT32, FIXED, UFIXED (fixed-point representation on input)
## scale - the final numeric variable representation
## address - variable address
holding_registers = [
{ name = "power_factor", byte_order = "AB", data_type = "FIXED", scale=0.01, address = [8]},
{ name = "voltage", byte_order = "AB", data_type = "FIXED", scale=0.1, address = [0]},
{ name = "energy", byte_order = "ABCD", data_type = "FIXED", scale=0.001, address = [5,6]},
{ name = "current", byte_order = "ABCD", data_type = "FIXED", scale=0.001, address = [1,2]},
{ name = "frequency", byte_order = "AB", data_type = "UFIXED", scale=0.1, address = [7]},
{ name = "power", byte_order = "ABCD", data_type = "UFIXED", scale=0.1, address = [3,4]},
]
input_registers = [
{ name = "tank_level", byte_order = "AB", data_type = "INT16", scale=1.0, address = [0]},
{ name = "tank_ph", byte_order = "AB", data_type = "INT16", scale=1.0, address = [1]},
{ name = "pump1_speed", byte_order = "ABCD", data_type = "INT32", scale=1.0, address = [3,4]},
]
## --- "request" configuration style ---
## Per request definition
##
## Define a request sent to the device
## Multiple of those requests can be defined. Data will be collated into metrics at the end of data collection.
[[inputs.modbus.request]]
## ID of the modbus slave device to query.
## If you need to query multiple slave-devices, create several "request" definitions.
slave_id = 1
## Byte order of the data.
## |---ABCD -- Big Endian (Motorola)
## |---DCBA -- Little Endian (Intel)
## |---BADC -- Big Endian with byte swap
## |---CDAB -- Little Endian with byte swap
byte_order = "ABCD"
## Type of the register for the request
## Can be "coil", "discrete", "holding" or "input"
register = "coil"
## Name of the measurement.
## Can be overriden by the individual field definitions. Defaults to "modbus"
# measurement = "modbus"
## Field definitions
## Analog Variables, Input Registers and Holding Registers
## address - address of the register to query. For coil and discrete inputs this is the bit address.
## name *1 - field name
## type *1,2 - type of the modbus field, can be INT16, UINT16, INT32, UINT32, INT64, UINT64 and
## FLOAT32, FLOAT64 (IEEE 754 binary representation)
## scale *1,2 - (optional) factor to scale the variable with
## output *1,2 - (optional) type of resulting field, can be INT64, UINT64 or FLOAT64. Defaults to FLOAT64 if
## "scale" is provided and to the input "type" class otherwise (i.e. INT* -> INT64, etc).
## measurement *1 - (optional) measurement name, defaults to the setting of the request
## omit - (optional) omit this field. Useful to leave out single values when querying many registers
## with a single request. Defaults to "false".
##
## *1: Those fields are ignored if field is omitted ("omit"=true)
##
## *2: Thise fields are ignored for both "coil" and "discrete"-input type of registers. For those register types
## the fields are output as zero or one in UINT64 format by default.
## Coil / discrete input example
fields = [
{ address=0, name="motor1_run"},
{ address=1, name="jog", measurement="motor"},
{ address=2, name="motor1_stop", omit=true},
{ address=3, name="motor1_overheating"},
]
[inputs.modbus.request.tags]
machine = "impresser"
location = "main building"
[[inputs.modbus.request]]
## Holding example
## All of those examples will result in FLOAT64 field outputs
slave_id = 1
byte_order = "DCBA"
register = "holding"
fields = [
{ address=0, name="voltage", type="INT16", scale=0.1 },
{ address=1, name="current", type="INT32", scale=0.001 },
{ address=3, name="power", type="UINT32", omit=true },
{ address=5, name="energy", type="FLOAT32", scale=0.001, measurement="W" },
{ address=7, name="frequency", type="UINT32", scale=0.1 },
{ address=8, name="power_factor", type="INT64", scale=0.01 },
]
[inputs.modbus.request.tags]
machine = "impresser"
location = "main building"
[[inputs.modbus.request]]
## Input example with type conversions
slave_id = 1
byte_order = "ABCD"
register = "input"
fields = [
{ address=0, name="rpm", type="INT16" }, # will result in INT64 field
{ address=1, name="temperature", type="INT16", scale=0.1 }, # will result in FLOAT64 field
{ address=2, name="force", type="INT32", output="FLOAT64" }, # will result in FLOAT64 field
{ address=4, name="hours", type="UINT32" }, # will result in UIN64 field
]
[inputs.modbus.request.tags]
machine = "impresser"
location = "main building"
## Enable workarounds required by some devices to work correctly
# [inputs.modbus.workarounds]
## Pause after connect delays the first request by the specified time. This might be necessary for (slow) devices.
# pause_after_connect = "0ms"
## Pause between read requests sent to the device. This might be necessary for (slow) serial devices.
# pause_between_requests = "0ms"
## Close the connection after every gather cycle. Usually the plugin closes the connection after a certain
## idle-timeout, however, if you query a device with limited simultaneous connectivity (e.g. serial devices)
## from multiple instances you might want to only stay connected during gather and disconnect afterwards.
# close_connection_after_gather = false