modbuspv

var (
	// DecoderMap assign pvDecoder to each PvType
	DecoderMap = map[PvType]pvDecoder{
		PvUnknown: pvUnknownDecoder,
		PvU16:     pvU16Decoder,
		PvU32:     pvU32Decoder,
		PvU64:     pvU64Decoder,
		PvI32:     pvI32Decoder,
		PvI64:     pvI64Decoder,
		PvF32:     pvF32Decoder,
		PvF64:     pvF64Decoder,
		PvBool:    pvBoolDecoder,
	}
)

var (
	// EncoderMap assign pvEncoder to each PvType
	EncoderMap = map[PvType]pvEncoder{
		PvUnknown: pvUnknownEncoder,
		PvU16:     pvU16Encoder,
		PvU32:     pvU32Encoder,
		PvU64:     pvU64Encoder,
		PvI32:     pvI32Encoder,
		PvI64:     pvI64Encoder,
		PvF32:     pvF32Encoder,
		PvF64:     pvF64Encoder,
		PvBool:    pvBoolEncoder,
	}
)

var (
	// ErrTimeout means timeout
	ErrTimeout = errors.New("timeout")
)

var (
	// ErrUnknownPvType means unknown pv type
	ErrUnknownPvType = errors.New("Unknown pv type")
)

var (
	// RegisterLengthMap gives quantity in modbus registers functions for each PvType
	RegisterLengthMap = map[PvType]uint16{
		PvUnknown: 0,
		PvU16:     1,
		PvU32:     2,
		PvU64:     4,
		PvI16:     1,
		PvI32:     2,
		PvI64:     4,
		PvF32:     2,
		PvF64:     4,
		PvBool:    1,
	}
)