85 lines
2.9 KiB
Markdown
85 lines
2.9 KiB
Markdown
# Telegraf Input Plugin: Modbus
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The Modbus plugin collects Discrete Inputs, Coils, Input Registers and Holding Registers via Modbus TCP or Modbus RTU/ASCII
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### Configuration:
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```toml
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## Connection Configuration
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##
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## The module supports connections to PLCs via MODBUS/TCP or
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## via serial line communication in binary (RTU) or readable (ASCII) encoding
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##
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## Device name
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name = "Device"
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## Slave ID - addresses a MODBUS device on the bus
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## Range: 0 - 255 [0 = broadcast; 248 - 255 = reserved]
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slave_id = 1
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## Timeout for each request
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timeout = "1s"
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# TCP - connect via Modbus/TCP
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controller = "tcp://localhost:502"
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# Serial (RS485; RS232)
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#controller = "file:///dev/ttyUSB0"
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#baud_rate = 9600
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#data_bits = 8
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#parity = "N"
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#stop_bits = 1
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#transmission_mode = "RTU"
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## Measurements
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##
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## Digital Variables, Discrete Inputs and Coils
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## name - the variable name
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## address - variable address
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discrete_inputs = [
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{ name = "Start", address = [0]},
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{ name = "Stop", address = [1]},
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{ name = "Reset", address = [2]},
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{ name = "EmergencyStop", address = [3]},
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]
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coils = [
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{ name = "Motor1-Run", address = [0]},
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{ name = "Motor1-Jog", address = [1]},
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{ name = "Motor1-Stop", address = [2]},
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]
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## Analog Variables, Input Registers and Holding Registers
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## name - the variable name
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## byte_order - the ordering of bytes
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## |---AB, ABCD - Big Endian
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## |---BA, DCBA - Little Endian
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## |---BADC - Mid-Big Endian
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## |---CDAB - Mid-Little Endian
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## data_type - INT16, UINT16, INT32, UINT32, INT64, UINT64, FLOAT32, FLOAT32-IEEE (the IEEE 754 binary representation)
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## scale - the final numeric variable representation
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## address - variable address
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holding_registers = [
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{ name = "PowerFactor", byte_order = "AB", data_type = "FLOAT32", scale=0.01, address = [8]},
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{ name = "Voltage", byte_order = "AB", data_type = "FLOAT32", scale=0.1, address = [0]},
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{ name = "Energy", byte_order = "ABCD", data_type = "FLOAT32", scale=0.001, address = [5,6]},
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{ name = "Current", byte_order = "ABCD", data_type = "FLOAT32", scale=0.001, address = [1,2]},
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{ name = "Frequency", byte_order = "AB", data_type = "FLOAT32", scale=0.1, address = [7]},
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{ name = "Power", byte_order = "ABCD", data_type = "FLOAT32", scale=0.1, address = [3,4]},
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]
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input_registers = [
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{ name = "TankLevel", byte_order = "AB", data_type = "INT16", scale=1.0, address = [0]},
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{ name = "TankPH", byte_order = "AB", data_type = "INT16", scale=1.0, address = [1]},
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{ name = "Pump1-Speed", byte_order = "ABCD", data_type = "INT32", scale=1.0, address = [3,4]},
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]
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```
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### Example Output:
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```
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$ ./telegraf -config telegraf.conf -input-filter modbus -test
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modbus.InputRegisters,host=orangepizero Current=0,Energy=0,Frecuency=60,Power=0,PowerFactor=0,Voltage=123.9000015258789 1554079521000000000
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```
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