The Modbus plugin collects Discrete Inputs, Coils, Input Registers and Holding Registers via Modbus TCP or Modbus RTU/ASCII
## Connection Configuration
##
## The module supports connections to PLCs via MODBUS/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"
# 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
#transmission_mode = "RTU"
## Measurements
##
## Digital Variables, Discrete Inputs and Coils
## name - the variable name
## address - variable address
discrete_inputs = [
{ name = "Start", address = [0]},
{ name = "Stop", address = [1]},
{ name = "Reset", address = [2]},
{ name = "EmergencyStop", 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
## 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 - UINT16, INT16, INT32, UINT32, FLOAT32, FLOAT32-IEEE (the IEEE 754 binary representation)
## scale - the final numeric variable representation
## address - variable address
holding_registers = [
{ name = "PowerFactor", byte_order = "AB", data_type = "FLOAT32", scale=0.01, address = [8]},
{ name = "Voltage", byte_order = "AB", data_type = "FLOAT32", scale=0.1, address = [0]},
{ name = "Energy", byte_order = "ABCD", data_type = "FLOAT32", scale=0.001, address = [5,6]},
{ name = "Current", byte_order = "ABCD", data_type = "FLOAT32", scale=0.001, address = [1,2]},
{ name = "Frequency", byte_order = "AB", data_type = "FLOAT32", scale=0.1, address = [7]},
{ name = "Power", byte_order = "ABCD", data_type = "FLOAT32", scale=0.1, address = [3,4]},
]
input_registers = [
{ name = "TankLevel", byte_order = "AB", data_type = "INT16", scale=1.0, address = [0]},
{ name = "TankPH", 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]},
]$ ./telegraf -config telegraf.conf -input-filter modbus -test
modbus.InputRegisters,host=orangepizero Current=0,Energy=0,Frecuency=60,Power=0,PowerFactor=0,Voltage=123.9000015258789 1554079521000000000