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Reference > Libraries > Arduinomodbus > Modbusserver.inputregisterread

ArduinoModbus - modbusServer.inputRegisterRead()

Description

Perform a “Read Input Registers” operation for a single input register.

Syntax

long inputRegisterRead(int address);
long inputRegisterRead(int id, int address);

Parameters

  • id (slave) - id of target, defaults to 0x00 if not specified
  • address address to use for operation

Returns

input register value on success, -1 on failure.