Module values 

Logix value type codes and payload codecs. Logix atomic and structure type codes and payload codecs.

Constants

AB_UDT

Logix abbreviated structure type marker.

ALT_STRING

CIP type code for a short string payload.

BOOL

CIP type code for BOOL.

BOOL_ARRAY_DWORD

CIP type code returned for packed BOOL array storage.

DINT

CIP type code for DINT.

INT

CIP type code for INT.

LINT

CIP type code for LINT.

LREAL

CIP type code for LREAL.

REAL

CIP type code for REAL.

SINT

CIP type code for SINT.

STANDARD_STRING_DATA_LEN

Maximum byte length of the built-in Logix STRING.DATA array.

STANDARD_STRING_HANDLE

Structure handle used by the built-in Logix STRING type.

STANDARD_STRING_PAD_LEN

Padding bytes following a built-in Logix STRING.DATA array.

STANDARD_STRING_PAYLOAD_LEN

Total encoded payload length of a built-in Logix STRING.

STRING

CIP type code for a standard string payload.

UDINT

CIP type code for UDINT.

UDT

Generic structure type marker.

UINT

CIP type code for UINT.

ULINT

CIP type code for ULINT.

USINT

CIP type code for USINT.

Functions

decode_array_element

Decodes one array element for the supplied CIP element type.

decode_payload

Decodes a value payload for the supplied CIP type code.

encode_payload

Appends a value payload without a type prefix.

encode_type_prefixed

Appends a CIP type prefix followed by the encoded value payload.

write_data_type

Returns the CIP type word used for a write request.

write_data_type_bytes

Encodes the CIP type prefix used for a write request.