RFID Studio

The fixed-length schemes need the length of the GS1 Company Prefix: it selects the partition and is not part of the GTIN, SSCC or GLN - your GS1 member organisation knows it. “Automatic” only works for a GTIN-8 (always 8).

The “+” schemes of TDS 2.0 store the key digit by digit and need no company prefix length; with a length the tool also shows the Pure Identity URI.

SGTIN-96: serial number with digits only, no leading zero, at most 274877906943 (below 2³⁸). Otherwise use SGTIN-198 or SGTIN+.

SGTIN-198: serial number with up to 20 characters of the GS1 character set 82 (letters, digits and ! " % & ' ( ) * + , - . / : ; < = > ? _), 7 bits per character.

SGTIN+ (TDS 2.0): GTIN as 14 digits, serial number up to 20 characters in the most compact encoding (integer, hex, base 64, URN Code 40 or 7-bit); no company prefix length needed.

DSGTIN+ (TDS 2.0): like SGTIN+ plus one prioritised date - choose which date it is.

SSCC-96: the 18-digit SSCC; 24 reserved zero bits complete the 96 bits.

SSCC+ (TDS 2.0): the 18 digits with 4 bits each, 84 bits - fits a 96-bit tag.

SGLN-96: GLN with a numeric extension without leading zero, below 2⁴¹; without extension the EPC carries 0.

SGLN-195: GLN with an extension of up to 20 characters (GS1 character set 82).

SGLN+ (TDS 2.0): GLN as 13 digits, extension up to 20 characters.

GRAI-96: only a GRAI with serial number is an EPC; the serial number is numeric without leading zero, below 2³⁸.

GRAI-170: serial number up to 16 characters (GS1 character set 82).

GRAI+ (TDS 2.0): GRAI as 14 digits, serial number up to 16 characters.

GIAI-96: company prefix followed by a numeric asset reference without leading zero (42 to 62 bits depending on the prefix length).

GIAI-202: asset reference with up to 18 to 24 characters depending on the prefix length (GS1 character set 82).

GIAI+ (TDS 2.0): up to 30 characters; leading digits with 4 bits each, the rest alphanumeric.

Hex as stored from bit 20h of the EPC bank (spaces and 0x are fine), an EPC Tag URI (urn:epc:tag:…) or a Pure Identity URI (urn:epc:id:…).

A Pure Identity URI names the object, not its encoding - scheme and filter only apply to it.

Every tag on the roll is blank and writable (PC 3000h, 496-bit EPC memory, 512-bit user memory).

The first tag rejects two writes; the printer repeats a failed write up to ^RR times - with enough retries the label is still encoded.

The first tag cannot be written at all: the printer prints VOID and encodes the next label (up to ^RS n labels).

No tag answers: every try ends with VOID; after ^RS n labels the printer follows ^RS e (no action, pause or error mode).

The EPC bank is locked with an access password the format does not know: the write fails with “memory locked”.

The EPC memory holds 96 bits: longer EPCs (SGTIN-198, SGLN-195, GRAI-170, GIAI-202, “+” schemes above 96 bits) do not fit.

Label size comes from ^PW/^LL in the ZPL, otherwise 4 × 6 in. Choose the resolution of your printer - all millimetre values are calculated with it.