# ReadFunctionCodes

## `ReadFunctionCodes` (`ENUM`)

`TYPE` ReadFunctionCodes FC01\_ReadCoils

InOut:

| Name                       | Initial |
| -------------------------- | ------- |
| FC01\_ReadCoils            | 16#1    |
| FC02\_ReadDiscreteInputs   | 16#2    |
| FC03\_ReadHoldingRegisters | 16#3    |
| FC04\_ReadInputRegisters   | 16#4    |