ZEBRA RFID Programming Guide

RFID

Programming Guide 3

for Link-OS RFID printers

P1062165-05EN

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Publication Date

June 25, 2020

Introduction to RFID.............................................................................................................................. 6

RFID Overview................................................................................................................. 6

Electronic Product Code (EPC)....................................................................................... 7

EPC Fields................................................................................................................ 7

EPC Structure in RFID Labels.................................................................................. 7

EPC Class 1, Generation 2 (Gen 2)................................................................................. 7

Data and Tag Security.............................................................................................. 7

Gen 2 Memory Map.................................................................................................. 8

Using RFID Features ............................................................................................................................ 9

Performing Firmware Updates ......................................................................................... 9

RFID Label Selection .................................................................................................... 10

Considering RFID Transponder Characteristics..................................................... 10

Accounting for Transponder Inlay Position............................................................. 10

Testing RFID Labels............................................................................................... 10

Maximizing RFID Potential......................................

Avoiding Radio Frequency Interference ................................................................. 12

Storing or Handling RFID Labels Correctly ............................................................ 12

Using the Correct RFID Settings.................................................................................... 12

Setting the RFID Values Using Tag Calibration ..................................................... 13

Setting the RFID Values Manually.......................................................................... 13

Restoring the Printer’s Default Programming Position ........................................... 13

Locking RFID Tags ....................................................................................................... 14

....................................................... 12

RFID Printer Configuration ................................................................................................................. 15

Creating Basic RFID Label Formats ................................................................................................... 20

Create and Send an RFID Label Format ....................................................................... 20

Sample RFID Label Formats......................................................................................... 21

Contents

RFID Label Format 1—Encode a Gen 2 Tag in Hexadecimal................................ 21

RFID Label Format 2—Encode a Gen 2 Tag in ASCII ........................................... 22

RFID Label Format 3—Read Data from Tag and Print Data on Label ................... 23

RFID Label Format 4—Encode Tag, Read Tag, and Print Data on Label ............. 24

RFID Label Format 5—Encode Tag, Read Tag, and Return Results to Host ........ 26

Troubleshooting .................................................................................................................................. 28

RFID Problems............................................................................................................... 28

RFID Error Codes and Messages .................................................................................. 31

ZPL Commands for RFID ................................................................................................................... 34

^HL or ~HL.....................................................................................................................35

Return RFID Data Log to Host ............................................................................... 35

^HR ................................................................................................................................ 37

Calibrate RFID Tag Position................................................................................... 37

^HV ................................................................................................................................ 43

Host Verification ..................................................................................................... 43

^RB ................................................................................................................................ 44

Define EPC Data Structure..................................................................................... 44

^RF................................................................................................................................. 46

Read or Write RFID Format.................................................................................... 46

^RL................................................................................................................................. 50

Lock/Unlock RFID Tag Memory ............................................................................. 50

^RLM – Lock/Unlock the Specified Memory Bank .................................................. 50

^RLB – Permanently Lock Specified Memory Sections.......................................... 51

~RO................................................................................................................................ 52

Reset Advanced Counters...................................................................................... 52

^RR ................................................................................................................................ 53

Enable Adaptive Antenna Selection ....................................................................... 53

^RS ................................................................................................................................ 54

Set Up RFID Parameters........................................................................................ 54

^RU ................................................................................................................................ 57

Read Unique RFID Chip Serialization .................................................................... 57

^RW ............................................................................................................................... 59

Set RF Power Levels for Read and Write............................................................... 59

SGD Commands for RFID .................................................................................................................. 61

device.applicator.rfid_void.............................................................................................. 62

odometer.rfid.valid_resettable ........................................................................................ 63

odometer.rfid.void_resettable......................................................................................... 64

Contents

rfid.adaptive_antenna..................................................................................................... 65

rfid.antenna_sweep........................................................................................................ 66

rfid.country_code............................................................................................................ 67

rfid.enable ...................................................................................................................... 68

rfid.error.response.......................................................................................................... 69

rfid.hop_table_version .................................................................................................... 70

rfid.log.clear.................................................................................................................... 71

rfid.log.enabled...............................................................................................................72

rfid.log.entries................................................................................................................. 73

rfid.position.program ...................................................................................................... 74

rfid.reader_1.antenna_port............................................................................................ 75

rfid.reader_1.firmware_version....................................................................................... 77

rfid.reader_1.hardware_version...................................................................................... 78

rfid.reader_1.model ........................................................................................................ 79

rfid.reader_1.power.read................................................................................................ 80

rfid.reader_1.power.write................................................................................................ 81

rfid.recipe_version ......................................................................................................... 82

rfid.region_code.............................................................................................................. 83

rfid.tag.calibrate.............................................................................................................. 84

rfid.tag.data .................................................................................................................... 85

rfid.tag.read.content ....................................................................................................... 86

rfid.tag.read.execute ...................................................................................................... 87

rfid.tag.read.result_line1................................................................................................. 88

rfid.tag.read.result_line1_alternate ................................................................................. 89

rfid.tag.read.result_line2................................................................................................. 90

rfid.tag.read.result_line2_alternate ................................................................................. 91

rfid.tag.test.content......................................................................................................... 92

rfid.tag.test.execute........................................................................................................ 93

rfid.tag.test.result_line1 .................................................................................................. 94

rfid.tag.test.result_line2 .................................................................................................. 95

Introduction to RFID

This section describes the basic concepts of Radio Frequency Identification (RFID) and how RFID works with your printer.

RFID Overview

An RFID printer encodes (writes) information on ultra-thin HF or UHF RFID transponders that are embedded in “smart” labels, tickets, and tags. The printer encodes the information; verifies proper encoding; and prints bar codes, graphics, and/or text on the label’s surface.

The RFID transponder is sometimes called the RFID tag or an inlay. The transponder is usually made of an antenna that is bonded to an integrated circuit (IC) chip. The IC chip contains the RF circuit, coders, decoders, and memory. If you hold an RFID label up to the light, you can see the transponder’s antenna, and you can feel a bump in the label where the IC chip is located.

Encoding and printing of an RFID label usually are completed on the first try, but some failures may occur. If you experience consistent failures, it may signal a problem with the RFID tags, with your label formats, or with the transponder placement.

Introduction to RFIDIntroduction to RFID

Electronic Product Code (EPC)

EPC is a product-numbering standard administered by GS1 that can be used to identify a variety of items by using RFID technology. The 96-bit EPC code links to an online database, providing a secure way of sharing product-specific information along the supply chain.

NOTE: The information in this section is provided for your convenience only and is subject to change. Go to http://gs1.org/epcglobal for the latest EPC information.

EPC Fields

As with bar codes, EPC is divided into numbers that identify the manufacturer and product type. However, EPC contains the following additional information:

• Header—identifies the length, type, structure, version, and generation of EPC

• Manager Number—identifies the company or company entity

• Object Class—similar to a stock keeping unit (SKU)

• Serial Number—the specific instance of the Object Class being tagged

Additional fields may be used as part of the EPC code to encode and decode information from different numbering systems into human-readable form. For more information about EPC specifications, refer to the EPC Global web site.

EPC Structure in RFID Labels

In the printer, you can subdivide transponder data into unique fields. You can customize these fields to create “smart” labels that meet your needs or that meet the standards necessary in EPC programming.

The

^RB ZPL command (see ^RB on page 44 for) is used to define EPC structure. EPC field data can be

delimited with any of the following characters:

, ~ ! @ # $ % ^ & * | . < > / \ : ;

EPC Class 1, Generation 2 (Gen 2)

Gen 2 tags typically have a 96-bit EPC identifier and can support large data structures. The size of user memory available (if any) varies by the model and manufacturer of the tag.

Data and Tag Security

Tag Passwords You can set optional 32-bit passwords that allow you to access tag data, to lock tag data, or to permanently disable (kill) a tag. If desired, use the ZPL command ^RF on page 46 to set the passwords and ^RL on page 50 to specify the type of lock.

Data Locking Options Tag memory can be safeguarded with flexible locking options using ^RL on

page 50. For example, you can lock a tag’s memory to prevent it from being encoded accidentally and later

unlock it for writing. A permanent locking feature prevents rewriting of tag data.

Gen 2 Memory Map

Figure 1 shows how information is stored on a Gen 2 tag.

Figure 1 Gen 2 Memory Map

Introduction to RFIDIntroduction to RFID

Using RFID Features

This section guides you through some ideas to consider and some tasks that you may need to perform before you begin using RFID labels. When you have completed this section, you will be ready to program your RFID label formats.

Performing Firmware Updates

Zebra may update printer firmware periodically to add new functionality or to fix any known issues with older firmware. At any time, you may download the most recent firmware for your RFID printer. For the firmware files and the downloading instructions, go to http://www.zebra.com/firmware.

IMPORTANT: Download only the firmware designed for your printer. Downloading inappropriate firmware may disable your printer or some or all of the RFID functionality. Before downloading new firmware, print a printer configuration label and verify that the new printer firmware version is appropriate for your printer.

Using RFID Features

RFID Label Selection

To select RFID labels for your printer, consider the RFID transponder (commonly called the RFID tag) and where the transponder is placed in the label. Run tests to determine if the RFID labels that you selected work as you expected before you purchase a large quantity of them. This section provides a brief overview of things that you should take into account. Additional RFID media considerations specific to your printer may be found at http://www.zebra.com/transponders/.

IMPORTANT: To use Silverline RFID media, you must use a ZT410 printter with the Silverline Printing Solution or a ZT411 with the On-metal Tagging Solution. Other RFID printers may not handle this media correctly.

Considering RFID Transponder Characteristics

Before you purchase Gen 2 RFID labels, determine which RFID transponder (tag) to use. Many RFID transponders look similar, but they behave differently. For different transponders, the following characteristics vary:

• the amount of programmable memory (which corresponds to the amount of data that can be encoded in it)

• the way that data is segmented

• custom commands that can be used (such as block lock)

Select the transponder that best suits your needs.

Accounting for Transponder Inlay Position

Communication between the RFID label and the printer is established when the RFID label’s transponder lines up with the printer’s RFID antenna or active antenna element. The optimal tag programming position varies with the transponder size, its configuration, and the type of chip used. Figure 2 on page 11 shows the physical specifications that should be taken into account for each transponder when deciding where to place the transponder on a label.

For center-justified printers, the RFID inlay should always be centered horizontally in the label.

IMPORTANT: Print quality may be affected by printing directly over the transponder. In particular, there is an area on each label immediately around the location of the IC chip where the printer may print with low quality. Design your printed label around the location of the chip in the type of approved RFID label that you select.

Testing RFID Labels

Before you purchase a large quantity of Gen 2 RFID labels, test a small batch to make sure that they function as you need them to. You may need to adjust the transponder location or change transponders if the RFID labels do not work in your application.

Using RFID Features

feed direction

Figure 2 Transponder Placement Guidelines

Inlay Center Left inner edge to

transponder (inlay) center. Viewed from face stock side, feed direction down.

Inlay Position Label Start to transponder

antenna leading edge.

Inlay Pitch Distance from the leading

edge of one transponder antenna to the next.

RF coupling with the transponder can change horizontally across the width of the label. This dimension is relative to the center of the transponder antenna, which is not always the same as the chip location.

This measurement is typically defined with a ±3 mm tolerance.

The Inlay Position ensures proper RF encoding with the transponder in the current label. This dimension is relative to the leading edge of the transponder antenna and is the optimal distance from the print line to the antenna during encoding.

This measurement is typically defined with a ±3 mm tolerance.

If transponders are spaced too closely together, coupling to multiple transponders can sometimes occur. This dimension defines the minimum pitch required to ensure coupling only with the transponder in the current label. The minimum pitch for printers supported by this manual is 16 mm (0.63 in.)

Using RFID Features

Maximizing RFID Potential

After an RFID label is encoded, how well it functions depends where the label is placed on an item, the contents of the item (such as metals or liquids), the location of the RFID readers, and how the label is stored.

Avoiding Radio Frequency Interference

Radio Frequency (RF) interference can be caused by many sources. This interference can affect RFID performance by limiting the range of the RFID tags or preventing reading/writing to the tags.

• Metal reflects radio frequency signals and is a leading source of RF interference. Foil or metal-based media should only be used for RFID applications if the tags are designed to work correctly with that type of media.

• Water and other liquids can absorb RF signals. Some media adhesives and label materials can be unexpected sources of liquids that cause performance problems.

• Other RF equipment can cause interference if the equipment is positioned too close together. Allow sufficient physical space between the RFID printer and other RF products that share the same bandwidth (such as antennas, readers, wireless LANs, or other RFID printer/encoders).

Storing or Handling RFID Labels Correctly

Store RFID labels at temperatures ranging from 60 to 203 °F (15.5 to 95 °C) in environmentally stable conditions.

Limit RFID label exposure to electrostatic discharge (ESD). Low-humidity environments may require the use of antistatic mats, straps, or clothing to help counter ESD.

Using the Correct RFID Settings

You can perform two types of calibration on an RFID printer. Media calibration sets the printer for the media criteria, such as label length and interlabel gap. RFID tag calibration sets the printer for RFID criteria, such as the optimal programming position.

For best results, run tag calibration each time you change RFID media to allow the printer to select the best programming position and other RFID settings for you. If tag calibration does not produce the desired results, you can adjust the values manually.

NOTE: In the ZD500R printer with firmware version V74.19.6Z, any time that a new label length is measured, the programming position returns to the default value. This can happen in the following situations:

• any calibration methods that measure length

•

^SS parameter for Label Pitch Length

With all other printers and firmware versions supported by this manual, the program position is persistent.

Using RFID Features

Setting the RFID Values Using Tag Calibration

Before running tag calibration, calibrate your printer for the media being used, close the printhead, and feed at least one label to make sure that tag calibration will begin from the correct position. For more information on media calibration, refer to the User Guide for your printer.

Perform tag calibration using one of the following ways:

• using the

• using the host computer.

• using the

page 100).

During the tag calibration procedure, the printer feeds an RFID label 1 mm at a time while taking readings (via READ TAG and WRITE TAG commands) to profile the location of the RFID transponders in the media. This process ensures that only the current tag will be encoded, not the tag before or after it. Based on the results, the printer selects optimal values for the following items for the media being used:

• the programming position

• the read/write power levels

• the antenna element (for printers with more than one antenna element)

These values are saved to nonvolatile memory (the value is saved even if the power is turned off) and are used for all subsequent labels unless a label format specifies a different value.

If the tag cannot be read during the RFID tag calibration process, RFID calibration fails, and the printer defaults are used. Try running the RFID tag calibration again with another RFID label.

RFID CALIBRATE user menu option (see RFID Tag Calibration (RFID Calibrate) on page 16)

^HR ZPL command (see ^HR on page 50). This command also returns a results table to the

"run" option in the rfid.tag.calibrate SGD command (see rfid.tag.calibrate on

Setting the RFID Values Manually

You can manually change the RFID settings in several ways. See Adjust the Printer’s RFID Settings on

page 22 for more information.

Restoring the Printer’s Default Programming Position

To restore the printer’s default programming position at any time, use the "restore" option in the

rfid.tag.calibrate SGD command (see rfid.tag.calibrate on page 100).

Locking RFID Tags

If an RFID tag supports locking, you can lock/unlock or permanently lock (permalock)/permanently unlock memory banks or blocks/sectors of the tag’s memory.

To perform a lock/unlock command or a permalock command, the access password used for the lock command must match the access password that is stored on the tag. The default access password that is stored on tags is 00000000. This value must be changed to something other than zero to perform lock/unlock functions; however, it can remain zero for permalock functions.

If the access password on a tag needs to be changed, use the following command:

^RFW,H,P^FD<access password>^FS

If the correct password is already encoded on your tag, you do not need to write the password to the tag as part of the label format, thereby adding to the programming time. Instead, you may simply specify the password as part of the format using the following command, which saves the time of writing it to the tag:

^RFS,H,P^FD<access password>^FS

For more information, see ^RF on page 58 and ^RL on page 62.

Using RFID Features

RFID Printer Configuration

This section presents the printer RFID settings that you can change and identifies the ways for changing them. These ways include the following:

• Through the printer’s display (if the printer has one)

NOTE: The settings shown here may not be in the same order in which you see them on your printer.

•ZPL and Set/Get/Do (SGD) commands

• The printer’s user menus

• The printer’s web pages when the printer has an active wired or wireless print server connection (See the ZebraNet Wired and Wireless Print Servers User Guide for more information about accessing the web pages. A copy is available at http://www.zebra.com/manuals.)

Table 1 RFID Settings

RFID Country Code Select the RFID country code (if applicable).

NOTE: A prompt for the country code appears only on some printers the first time that they are powered up, depending on the world region to which the printers were shipped. Specify the appropriate country to access the printer’s RFID features.

SGD command used: rfid.country_code on page 67

Printer web page: View and Modify Printer Settings > RFID Setup > RFID

COUNTRY CODE

RFID Status Display the status of the RFID subsystem of the printer.

Related ZPL command(s): ^HL or ~HL on page 35

SGD command used: rfid.error.response on page 69

Table 1 RFID Settings (Continued)

RFID Printer Configuration

RFID Tag Calibration (RFID Calibrate)

Initiate tag calibration for RFID media. (Not the same as media and ribbon calibration.) During the process, the printer moves the media, calibrates the RFID tag position, and determines the optimal settings for the RFID media being used. These settings include the programming position, the antenna element to use, and the read/write power level to use.

IMPORTANT: Before running this command, load the printer with RFID media, calibrate your printer, close the printhead, and feed at least one label to make sure that tag calibration will begin from the correct position.

Leave all transponders before and after the tag that is being calibrated. This allows the printer to determine RFID settings which do not encode the adjacent tag. Allow a portion of media to extend out the front of the printer to allow for backfeed during the tag calibration procedure.

Related ZPL command(s): ^HR on page 37

SGD command used: rfid.tag.calibrate on page 84

Read RFID Data Read and return the specified tag data from the RFID tag located over the RFID antenna.

No printer movement occurs while tag data is being read. The printhead can be open or closed.

Accepted values: •

epc = reads the EPC data based on the EPC size

specified in the RFID tag’s protocol bits, up to 160 bits

•

tid information = reads the first 32 bits of the TID

(Tag ID)

•

password status = reads the tag’s access and kill

passwords

•

protocol bits = reads the protocol bits from the

EPC memory banks and converts that value to the EPC size

•

memory bank sizes = reads the EPC, TID, and user

memory banks sizes

•

up = sets the command to the previous test

•

down = sets the command to the next test

Related ZPL command(s): ^RF on page 46

SGD command used: rfid.tag.read.content on page 86 and

rfid.tag.read.execute on page 87

RFID Printer Configuration

Table 1 RFID Settings (Continued)

RFID Test During the RFID test, the printer attempts to read and write to a transponder. No printer

movement occurs with this test.

Accepted values: •

SGD command used: rfid.tag.test.content on page 92 and

quick = performs a read EPC test and a write EPC

test (using random data)

•

read = performs a read EPC test

•

write = performs a write EPC test (using random

data)

•

up = sets the command to the previous test

•

down = sets the command to the next test

rfid.tag.test.execute on page 93

RFID Programming Position

If the desired programming position (read/write position) is not achieved through RFID tag calibration, a value may be specified. See Using the Correct RFID Settings on page 12 for more information.

Accepted values:

F0 to Fxxx (where xxx is the label length in millimeters

or 999, whichever is less)—The printer feeds the label forward for the specified distance and then begins programming.

B0 to B30—The printer backfeeds the label for the

specified distance and then begins programming. To account for the backfeed, allow empty media liner to extend out of the front of the printer when using a backward programming position.

NOTE: Backward program positions of

B1 to B30

may not yield the best results with some media. If a backward programming position does not yield the desired results, consider redesigning your label format so that the printer uses a forward program position of

F0 to Fxxx.

Related ZPL command(s): ^RS on page 54

SGD command used: rfid.position.program on page 74

Printer web page: View and Modify Printer Settings > RFID Setup >

PROGRAM POSITION

RFID Printer Configuration

Table 1 RFID Settings (Continued)

RFID Antenna Element If the desired antenna is not achieved through RFID tag calibration, a value may be

specified.

NOTE: This applies only to ZT400 and ZT600 series RFID printers, which have multiple antenna elements. Other printers, which only have one antenna element, always use an antenna element value of

Accepted values: A1, A2, A3, A4

B1, B2, B3, B4

C1, C2, C3, C4

D1, D2, D3, D4

E1, E2, E3, E4

Related ZPL command(s): ^RW on page 59

SGD command used: rfid.reader_1.antenna_port on page 75

Printer web page: View and Modify Printer Settings > RFID Setup > RFID

ANTENNA

RFID Adaptive Antenna NOTES:

A1.

• This applies only to ZT400 and ZT600 series RFID printers, which have multiple antenna elements.

• The label length must be 2 in. (51 mm) or longer.

• Activating this feature may slow throughput on damaged or weak RFID tags.

This command enables or disables adaptive antenna selection.If the printer cannot find RFID tags with the antenna element specified, the printer may try neighboring antenna elements. If the printer is unsuccessful communicating with the RFID tag after trying the neighboring antenna elements, the printer voids the label.

Accepted values: •

none = The printer uses only the current antenna

element selection.

•

neighbors = The printer attempts to read the tag

using the antenna elements to the left/right and above/below the current antenna. The antenna element that is successful is used for all subsequent RFID commands until the next unsuccessful attempt.

Related ZPL command(s): ^RR on page 53

SGD command used: rfid.adaptive_antenna on page 65

Printer web page: View and Modify Printer Settings > RFID Setup >

ADAPTIVE ANTENNA

RFID Printer Configuration

Table 1 RFID Settings (Continued)

RFID Antenna Sweep NOTE: This feature applies to ZT400 and ZT600 printers. The label must be 2 in.

(51 mm) or longer, and the label format must have a programming position of F0.

This feature enables/disables the antenna sweep feature. If the RFID media loaded in the printer is known to be in range of an antenna at the F0 programming position, you can avoid RFID calibration by using the RFID antenna sweep feature. With this feature enabled, when the first RFID format is sent after a printer powerup or printhead close, the printer scans through the antennas to find the optimal antenna element.

Accepted values:

Related ZPL command(s): rfid.antenna_sweep on page 66

RFID Read Power If the desired read power is not achieved through RFID tag calibration, a value may be

specified.

Accepted values: 0 to 30

Related ZPL command(s): ^RW on page 59

SGD command used: rfid.reader_1.power.read on page 80

Printer web page: View and Modify Printer Settings > RFID Setup > RFID

RFID Write Power If the desired write power is not achieved through RFID tag calibration, a value may be

specified.

Accepted values: 0 to 30

Related ZPL command(s): ^RW on page 59

on, off

READ PWR

SGD command used: rfid.reader_1.power.write on page 81

Printer web page: View and Modify Printer Settings > RFID Setup > RFID

WRITE PWR

RFID Valid Counter Resets the RFID valid label counter to zero.

Related ZPL command(s): ~RO on page 52

SGD command used: odometer.rfid.valid_resettable on page 63

RFID Void Counter Resets the RFID void label counter to zero.

Related ZPL command(s): ~RO on page 52

SGD command used: odometer.rfid.void_resettable on page 64

Creating Basic RFID Label Formats

Use the ZPL samples in this section as a base for programming your own RFID label formats.

For specific information about individual ZPL commands, see ZPL Commands for RFID on page 34.

Create and Send an RFID Label Format

The following pages contain sample RFID label formats that you can modify to create your own RFID label formats.

To create an RFID label based on a sample label, complete these steps:

1. Using any word processor or text editor that is capable of creating ASCII-only files (for example, use

Microsoft sample.

2. Save the file to your computer.

When naming the file, use file

3. Set up the printer, and turn the power On (I).

4. Copy the file to the printer. One way to do this is by using the Zebra Setup Utilities (to download go to

http://www.zebra.com/us/en/products-services/software/manage-software/zebra-setup-utility.html).

5. Compare your label results with those shown in the sample. If your results are not the same as those

shown, confirm that the file you created is identical to the format shown, and then repeat the printing procedure.

6. Check the RFID data on your label.

a. Open the printhead, and place the label above the antenna in the printer.

b. Use one of the methods given in Read RFID Data on page 16 to view the transponder data.

c. Compare your RFID data with that shown in the sample. If your data does not look like what is

7. When you are certain that the file you created is correct, substitute your data in the label format where

necessary.

Word and save as a .txt file), type in the label format exactly as shown in the desired

.zpl as the extension for the file (for example, you may choose to name a

format1.zpl).

shown, confirm that the file you created is identical to the format shown, and then resend the label format to the printer.

Creating Basic RFID Label FormatsCreating Basic RFID Label Formats

Simple write example

▼

READ RFID DATA

EPC

▲

11223344556677889900

1122

READ

Sample RFID Label Formats

Use the formats in this section to assist you in creating your own RFID label formats.

RFID Label Format 1—Encode a Gen 2 Tag in Hexadecimal

Line

Number

^XA ^FO50,50

^A0N,65 ^FDSimple write example ^FS

^RFW,H ^FD112233445566778899001122 ^FS

Resulting Label

^XZ

Type This ZPL Code Function of ZPL Code

Indicates start of label format.

Prints “Simple write example” on the label at location 50,50.

W,H = write hex

Encodes the 12 bytes of data (96 bits) to the tag. The data written is: 112233445566778899001122

Indicates end of label format.

Programmed to Transponder

112233445566778899001122

Sample Control Panel Display

Creating Basic RFID Label FormatsCreating Basic RFID Label Formats

Simple write example

▼

READ RFID DATA

EPC

▲

30302072666964206461

7461

READ

RFID Label Format 2—Encode a Gen 2 Tag in ASCII

This label format is different in what shows on the control panel. The control panel always displays RFID data in hexadecimal.

Line

Number

^XA ^FO50,50

^A0N,65 ^FDSimple write example ^FS

^RFW,A ^FD00 rfid data ^FS

Resulting Label

^XZ

Type This ZPL Code Function of ZPL Code

Indicates start of label format.

Prints “Simple write example” on the label at location 50,50.

W,A = write ASCII

Encodes 00 rfid data to the tag in hexadecimal format, which is 12 bytes of data (96 bits). The

data written is:

303020726669642064617461

Indicates end of label format.

Programmed to Transponder

303020726669642064617461

Sample Control Panel Display

Creating Basic RFID Label FormatsCreating Basic RFID Label Formats

112233445566778899001122

▼

READ RFID DATA

EPC

▲

11223344556677889900

1122

READ

RFID Label Format 3—Read Data from Tag and Print Data on Label

This example assumes that the tag created using RFID Label Format 1—Encode a Gen 2 Tag in

Hexadecimal on page 21 is being read.

Line

Number

^XA ^FO50,50

Type This ZPL Code Function of ZPL Code

^A0N,40 ^FN0 ^FS

^FN0 ^RFR,H ^FS

Read from Transponder

^XZ

112233445566778899001122

Resulting Label

Indicates start of label format.

^FN0 is a placeholder field variable for the tag data

that will be read in the following line. When the label prints, the data read from the tag will be printed at location 50,50.

R,H = read hexadecimal

The read results are put into field variable 0 ( At this point, the printer substitutes previous

instances of from this field. If necessary, the data read from the

tag will be padded with zeroes to the maximum bit size.

Indicates end of label format.

^FN0 in the label format with the data

^FN0).

Sample Control Panel Display

Creating Basic RFID Label FormatsCreating Basic RFID Label Formats

0data

RFID Label Format 4—Encode Tag, Read Tag, and Print Data on Label

Line

Number

^XA ^FO60,60

Type This ZPL Code Function of ZPL Code

^A0N,40 ^FN7 ^FS

^RFW,A ^FD0data ^FS

^FN7 ^RFR,A ^FS

Programmed to Transponder

^XZ

Indicates start of label format.

When the label prints, the data read from the tag at field variable 7 (

60,60.

W,A = write ASCII

Encodes 0data into the block in hexadecimal format, padded with 8 bytes of zeroes to make the

data 12 bytes. The data written is:

306461746100000000000000

R,A = read ASCII

Reads the tag data into field variable 7 ( After this occurs, any fields in this label format that

^FN7 will be replaced with this read data.

have Because ASCII format was specified, the

hexadecimal value is converted back to ASCII format before being printed on the label.

Indicates end of label format.

^FN7) will be printed at location

^FN7).

306461746100000000000000

Read from Transponder

306461746100000000000000

Resulting Label

Creating Basic RFID Label FormatsCreating Basic RFID Label Formats

▼

READ RFID DATA

EPC

▲

30646174610000000000

0000

READ

Sample Control Panel Display

Creating Basic RFID Label FormatsCreating Basic RFID Label Formats

010203040500000000000000

RFID Label Format 5—Encode Tag, Read Tag, and Return Results to Host

Line

Number

Type This ZPL Code Function of ZPL Code

^XA ^FO50,50

^A0N,65 ^FN3 ^FS

^RFW,H ^FD0102030405 ^FS

^FN3 ^RFR,H ^FS

^HV3

^XZ

Indicates start of label format.

When the label prints, the data read from the tag at field variable 3 (

50,50.

W,H = write hex

Encodes 12 bytes of data (96 bits) to the tag with 7 bytes of zeroes as padding. The data written is:

010203040500000000000000

R,H = read hexadecimal

Reads the tag data into field variable 3 ( After this occurs, any fields in this label format that

^FN3 will be replaced with this read data.

have

Returns the value in ^FN3 to the host computer. Data is sent over whichever communication

channel is established with the host (such as parallel, serial, USB, Ethernet). In this example,

010203040500000000000000 would be returned to

the host.

Indicates end of label format.

^FN3) will be printed at location

^FN3).

Programmed to Transponder

010203040500000000000000

Read from Transponder

010203040500000000000000

Resulting Label

Creating Basic RFID Label FormatsCreating Basic RFID Label Formats

▼

READ RFID DATA

EPC

▲

01020304050000000000

0000

READ

Sample Control Panel Display

Sent to Host Computer

010203040500000000000000

Troubleshooting

This section provides information about RFID operational errors that you might need to troubleshoot. For other types of problems, consult the User Guide for your printer.

RFID Problems

Table 2 identifies problems that may occur with RFID printers, the possible causes, and the recommended

solutions.

Table 2 RFID Problems

Problem Possible Cause Recommended Solution

The printer encodes the wrong tag.

The printed data does not match the encoded data.

RFID tag calibration fails. Some RFID inlays are more

The printer is not calibrated for the media being used.

sensitive than others. The RFID inlay being calibrated may be more or less sensitive than others on the same roll of media.

On ZQ511, ZQ521, and ZQ630 printers, the RFID inlays are placed too close together.

1. Perform media calibration. Refer to the User Guide for your printer for media calibration instructions.

2. Perform RFID tag calibration. (See Setting the

RFID Values Using Tag Calibration on page 13.)

3. If necessary, adjust the RFID settings manually. (See RFID Printer Configuration on page 15.)

Perform RFID tag calibration again. (See Setting the

RFID Values Using Tag Calibration on page 13.)

1. Manually set the program position and read/write power levels. (See RFID Printer Configuration on

page 15.)

2. Verify that the tags are being programmed with the correct information.

Change the spacing of the RFID inlays.

Table 2 RFID Problems (Continued)

Problem Possible Cause Recommended Solution

Low yields. Too many RFID tags per roll are voided.

Some RFID inlays are more sensitive than others and may require special printer settings.

TroubleshootingTroubleshooting

1. Perform RFID tag calibration. (See Setting the

RFID Values Using Tag Calibration on page 13.)

2. If necessary, adjust the RFID settings manually. (See RFID Printer Configuration on page 15.)

3. If the problem persists, consider using a different tag type. Contact an authorized Zebra RFID reseller for more information.

The printer stops at the RFID inlay.

Radio frequency (RF) interference from another RF source.

The printer is using outdated printer firmware.

The printer calibrated the label length only to the RFID inlay instead of to the interlabel gap.

Do one or more of the following as necessary:

• Move the printer away from fixed RFID readers.

• Make sure that the media door is closed at all times during RFID programming.

Go to www.zebra.com/firmware for updated firmware.

1. Perform media calibration. Refer to the User Guide for your printer for media calibration instructions.

2. Perform RFID tag calibration. (See Setting the

RFID Values Using Tag Calibration on page 13.)

Table 2 RFID Problems (Continued)

Problem Possible Cause Recommended Solution

The RFID-enabled printer voids every label.

The printer is not calibrated for the media being used.

TroubleshootingTroubleshooting

1. Perform media calibration. Refer to the User Guide for your printer for media calibration instructions.

2. Perform RFID tag calibration. (See Setting the

RFID Values Using Tag Calibration on page 13.)

3. If necessary, adjust the RFID settings manually. (See RFID Printer Configuration on page 15.)

You are using an incorrect value for the programming position or another RFID setting.

You are sending RFID ZPL or SGD commands that are incorrect.

The settings are incorrect in your label designer software.

Radio frequency (RF) interference from another RF source.

The printer is unable to communicate with the RFID reader/encoding module.

1. Perform RFID tag calibration. (See Setting the

RFID Values Using Tag Calibration on page 13.)

2. If necessary, adjust the RFID settings manually. (See RFID Printer Configuration on page 15.)

1. Check your label formats. See ZPL Commands for

RFID on page 34 or SGD Commands for RFID on page 61.

2. For sample label formats, see Sample RFID Label

Formats on page 21.

The software settings override the printer settings. Make sure that the software and printer settings match.

Do one or more of the following as necessary:

• Move the printer away from fixed RFID readers or other RF sources.

• Make sure that the media door is closed at all times during RFID programming.

1. Turn off (O) the printer.

2. Wait 10 seconds.

3. Turn on (I) the printer.

The DATA light flashes indefinitely after you attempt to download printer firmware.

The download was not successful. For best results, cycle power on the printer before downloading any firmware.

4. If the problem persists, you may have a bad encoding module or a loose connection between the encoding module and the printer. Contact Technical Support or an authorized Zebra RFID service technician for assistance.

1. Turn off (O) the printer.

2. Wait 10 seconds.

3. Turn on (I) the printer.

4. Attempt to download the firmware again.

If the problem persists, contact Technical Support.

Table 2 RFID Problems (Continued)

Problem Possible Cause Recommended Solution

RFID parameters do not appear in Setup mode, and RFID information does not appear on the printer configuration label.

The printer does not void RFID labels that are not programmed correctly.

An incorrect version of firmware was loaded on the printer.

The printer is unable to communicate with the RFID subsystem.

TroubleshootingTroubleshooting

1. Go to www.zebra.com/firmware

2. Download the correct printer firmware, if necessary.

3. If the problem persists, contact Technical Support.

1. Turn off (O) the printer.

2. Wait 10 seconds.

3. Turn on (I) the printer.

4. If the problem persists, you may have a bad RFID reader or a loose connection between the RFID reader and the printer. Contact Technical Support or an authorized service technician for assistance.

RFID is disabled. The SGD command

"off".

rfid.enable is set to

1. Change

page 68.)

2. Restart your printer for changes to take effect.

rfid.enable to "on". (See rfid.enable on

RFID Error Codes and Messages

In the event of an RFID error, the printer does the following:

• displays an RFID error or status message on the second line of the display

• returns RFID error codes to the RFID data log (see ^HL or ~HL on page 35 for more information about the RFID data log)

Table 3 lists the error codes. Numbers that appear in the format “

individually.

Table 3 RFID Error Codes

Error Code

XXXXXXXX READER ERR XXXXXXXX

00000000 RFID OK The RFID operation completed successfully.

00001239 ENCODER ERROR An error occurred in the RFID encoder module firmware.

RFID Error or

Status Message

Description/Action Required

XXXXXXXX is 8 hex characters returned from the reader.

This error can indicate a read/write error with your RFID tag, or it could indicate an internal problem with the RFID reader. If the problem persists, contact Technical Support.

RFID STATUS control panel

READER ERR xxxxxxxx” are not listed

00001240 BAD RFID DATA The data that was attempted to be written to a tag is not valid.

00001241 RFID TEST ERROR An error occurred during an RFID test.

00001242 COUNTRY CODE ERROR The value of the country code that was sent to the RFID reader is not valid,

or the value was not specified. See RFID Country Code on page 15 for more information.

00001244 NO READER PRESENT The printer does not detect an RFID reader.

02000100 DATA AMOUNT ERROR The wrong amount of data was specified in an RFID reader command.

Table 3 RFID Error Codes (Continued)

TroubleshootingTroubleshooting

Error Code

02000101 INVALID OPCODE The command sent to the RFID reader module was invalid.

02000102 UNKNOWN OPCODE The command sent to the RFID reader module is not known by the module

02000103 RFID PWR TOO HIGH An attempt was made to set the power of the RFID reader to a value that is

02000104 INVALID FREQUENCY The frequency selected in an RFID command to reader module is not valid.

02000105 INVALID PARAMETER A parameter of an RFID command for the reader module is not valid.

02000106 RFID PWR TOO LOW An attempt was made to set the power of the RFID reader to a value that is

02000109 INVALID COMMAND The command sent to the RFID reader module was invalid.

02000200 BAD IMAGE CRC The RFID reader firmware had a bad validation checksum.

02000201 READER FW ERROR An error occurred in the RFID reader module.

02000300 RFID FLASH ERROR An error occurred while attempting to write firmware to the RFID reader

02000301

02000302

02000303

02000304

02000305

02000306

02000400 NO TAG FOUND The reader attempted to locate an RFID tag and was unable to do so.

RFID Error or

Status Message

Description/Action Required

firmware.

too large.

too small.

module.

02000401 PROTOCOL UNDEFINED The RFID reader was not properly told the type of RFID tag.

02000402 INVALID PROTOCOL The type of RFID tag that the RFID reader was told to expect is not valid.

02000403 LOCK ERROR An error occurred while attempting to change the lock bits on the tag.

02000404 NO DATA READ An attempt to read data from a tag could not find any data.

02000405 AFE NOT ON The reader module does not have the AFE on.

02000406 WRITE FAILED The tag write failed.

02000407 NOT IMPLEMENTED The RFID reader command that was sent to the reader is not implemented

in this version of reader firmware.

02000408 INVALID WRITE DATA The data that was attempted to be written to a tag is not valid.

02000409 INVALID ADDRESS The memory address for data to be written to a tag is not valid.

02000410 PROTOCOL BAD EPC The protocol definition is inconsistent with the size of the EPC data area.

02000411 PROT BAD NUM DATA The protocol definition is inconsistent with the amount of data sent.

02000420 GEN2 PROTOCOL ERR An error was made in the specification of a Generation 2 tag protocol.

02000423 GEN2 MEMORY BAD PC An error was made in the specification of a Generation 2 tag protocol control

bit.

02000424 GEN2 MEMORY LOCKED The Generation 2 tag memory area is locked.

02000430 GEN2 UNKNOWN ERROR An unknown error was made with a Generation 2 tag.

02000500 TRANSMITTER ON The RFID radio transmitter is on.

Table 3 RFID Error Codes (Continued)

TroubleshootingTroubleshooting

Error Code

02000503 NO ANTENNA FOUND The RFID reader module found that no antenna was connected.

02000504 RFID TOO HOT The RFID reader module is too hot.

02000505 HIGH RETURN LOSS The amount of energy being reflected by the antenna connection is higher

02000507 BAD ANTENNA CFG An attempt was made to set the reader module to an invalid antenna

02000600 NOT ENOUGH TAGS The RFID module memory contained data from fewer tags than was

02000601 TAG ID BUFFER FULL The RFID module memory is full.

02000602 REPEATED TAG ID An attempt was made to write data to the RFID module memory with an ID

02000603 TOO MANY TAG IDS The RFID reader was asked to read more tags into module memory than

02000604 BLOCKED RESPONSE The RFID module response is blocked.

02001001 RDR COMM TIMEOUT An attempt to communicate with the reader module took too much time.

02001238 PRINTER ERROR The printer caused an error.

02001242 COUNTRY CODE ERROR The RFID country code is not selected.

0200010A INVALID BAUD RATE An attempt was made to set the serial communication baud rate of the RFID

0200010B INVALID REGION An attempt was made to set the region of the RFID reader to a value that is

0200010C BAD LICENSE KEY The RFID reader firmware's license key does not match the RFID reader

RFID Error or

Status Message

Description/Action Required

than acceptable.

configuration.

requested by printer firmware.

that is already present in the memory.

the module could hold.

reader to a value that is not valid.

not valid.

firmware.

0200040A GENERAL TAG ERROR Miscellaneous error while attempting to read or write to a tag.

0200040B DATA TOO LARGE Too much data was attempted to be written to a tag.

0200040F PROT BIT DCDNG BAD Protocol bit decoding failure.

0200042B GEN2 LOW POWER The Generation 2 tag is set to low power mode.

0200042F GEN2 ERROR An unspecified error was made with a Generation 2 tag.

02007F00 SYS UNKNOWN ERROR A firmware routine in the RFID reader module firmware returned an

unknown error.

02007F01 TM ASSERT FAILED An unexpected internal error has occurred in the RFID reader module

firmware.

ZPL Commands for RFID

This section contains the ZPL II commands for RFID-specific applications.

^HL or ~HL

Return RFID Data Log to Host

Description: The printer can log RFID data and store it in the printer’s RAM. These commands request that the RFID data log be returned to the host computer. The

while the

The firmware version determines the way that these commands function:

^HL command is processed after all of the previous formats (^XA ... ^XZ) have been processed.

ZPL Commands for RFID

~HL command is processed immediately,

• In firmware X.20.16Z and later, for security, logging is disabled by default. The current data log and restarts data recording. The log. The RFID host logs can be enabled or disabled by the "rfid.log.enabled" SGD command (see

rfid.log.entries on page 73).

• In firmware X.20.15Z and earlier, logging is enabled by default. Both commands clear the current data log and restart data recording.

Format:

In the log, RFID data displays in this format:

[date&time][RFID operation],[program position],[antenna element], [read or write power], [RFID status],[data]

where

•

^HL or ~HL

[date&time]*

a time stamp for the log entry * With some older versions of firmware, this parameter does not display.

[RFID operation] B = a ^RLB command was issued (see ^RLB – Permanently Lock Specified Memory Sections on

page 51)

E = log file reset L = lock M = a ^RLM command was issued (see ^RLM – Lock/Unlock the Specified Memory Bank on page 50) R = read W = write

~HL command does not automatically clear the data

^HL command clears the

•

[program position],[antenna element],[read or write power]*

Additional information about the program position, the antenna, and the read or write power follows the RFID operation.

Such as:

R,F1,D3,27,00000000,DATA

where

F1 = the program position, D3 = the antenna, and 27 is the write power.

* With some older versions of firmware, these parameters do not display.

• [RFID status]

######## = an RFID error code (see RFID Error Codes and Messages on page 43)

FFFFFFFF (or limited to length FFFF for some printers) = indicates that the log file was reset

•

[data]

the data read or written

Comments:

• Data is shown in the format specified by the

^RFW command (ASCII, Hex, or EPC).

ZPL Commands for RFID

• If the RFID data log exceeds the maximum size, the following occurs:

• In firmware X.20.16Z and later, when the data log reaches 1500K, one or more older entries are

deleted to make room for the newest entry.

• In firmware X.20.15Z and earlier, when the data log reaches 64K, the RFID data log is cleared

automatically, and data recording restarts. When this happens, the following appears in the log:

E,FFFFFFFF,Logfile automatically reset

• In firmware X.20.15Z and earlier, If the printer loses power, the log is lost. If the log results are important to you, retrieve the information frequently.

^HR

Calibrate RFID Tag Position

Description: Use this command to initiate tag calibration for RFID media. During the tag calibration process (which can take up to 5 minutes on some printers, depending on the type of RFID inlay and the label size) the printer moves the media, reads the tag’s TID to determine chip type, calibrates the RFID tag position, and determines the optimal settings for the RFID media being used. Depending on the printer, these settings include the programming position, the antenna element to use, and the read/write power level to use.

ZPL Commands for RFID

Results of the

rfid.tag.calibrate SGD command performs the same calibration but does not create a results table. To

restore the printer’s default programming position at any time, use the

rfid.tag.calibrate SGD command (see rfid.tag.calibrate on page 84).

Before running this command, load the printer with RFID media, calibrate your printer, close the printhead, and feed at least one label to make sure that tag calibration will begin from the correct position. For more information on media calibration, refer to the User Guide for your printer.

IMPORTANT: Leave all transponders before and after the tag that is being calibrated. This allows the printer to determine RFID settings which do not encode the adjacent tag. Allow a portion of media to extend out the front of the printer to allow for backfeed during the tag calibration procedure.

Format:

a = start string This parameter specifies the user text to appear before the results table.

b = end string This parameter specifies the user text to appear after the results table.

^HR tag calibration are returned to the host computer. The "run" option in the

"restore" option in the

^HRa,b,c,d,e

Parameters Details

Values: any string less than 65 characters

Default: start

Values: any string less than 65 characters

Default: end

ZPL Commands for RFID

Parameters Details

c = start position This parameter specifies the start position of the calibration range. All

numeric values are in millimeters. Forward or backward designations assume that the label's initial position is with the leading edge at the print line.

Values:

•Forward:

F0 to Fxxx (where xxx is the label length in millimeters or 999,

whichever is less) The printer feeds the label forward for the specified distance and then begins tag calibration.

• Backward:

B0 to B30

The printer backfeeds the label for the specified distance and then begins tag calibration. To account for the backfeed, allow empty media liner to extend out of the front of the printer when using a backward programming position. For printers that do not use backfeed during RFID calibration, the media is moved forward until it is in the same relative position for the following label.

Default:

• For ZT400 Series and ZT600 Series printers with RFID option:

• For all other supported printers:

d = end position This parameter specifies the end position of the calibration range (last

B20

B30

program position to check). All numeric values are in millimeters. Forward or backward designations assume that the label's initial position is with the leading edge at the print line.

Values:

•Forward:

F0 to Fxxx (where xxx is the label length in millimeters or 999,

whichever is less) The printer performs tag calibration until it reaches the specified end position and then ends the process.

• Backward:

B0 to B30

The printer performs tag calibration until it reaches the specified end position and then ends the process. Valid only with a backward start position that is greater than the end position.

• Automatic:

The printer automatically ends the tag calibration process after successfully reading and encoding a consecutive range of 5 mm on the label. The printer also ensures that no other tags can be programmed at the programming position with the calibration-determined power levels.

Default:

Parameters Details

e = antenna and

read/write power level detection

ZPL Commands for RFID

This parameter specifies whether to select the antenna and read/write power levels automatically or manually.

NOTE: The ZD500R, ZQ511/ZQ521, and ZQ630 printers have only one antenna, so this parameter applies only to the read/write power level settings.

Values:

•

A = Automatic. The printer automatically scans through the antennas

and read/write power during calibration.

•

M = Manual. The printer uses the current antenna and read/write power

level settings.

Default:

ZPL Commands for RFID

Example: When the ^HR command is sent to the printer, the printer performs tag calibration and returns a results table such as the following:

start position=B14 MM,A1,18,25 tid information=E200.3414:Alien leading edge Tag 1 ,Tag 2 ,Tag 3 ,Tag 4 ,Tag 5 ,Tag 1 ,Tag 2 ,Tag 3 ,Tag 4 ,Tag 5 , EPC,7109 ,BA29 ,6FD0 ,58AE ,9CDE ,7109 ,BA29 ,6FD0 ,58AE ,9CDE , B30,A1,12,18,A1,29, ,A1, , ,A1, , ,A1, , ,B1, , ,B1,17,24,B1, , ,B1, , ,B1, , , B29,A1,13,18,A1,25, ,A1, , ,A1, , ,A1, , ,B1, , ,B1,14,19,B1, , ,B1, , ,B1, , , B28,A1,15,20,A1,23,29,A1, , ,A1, , ,A1, , ,B1, , ,B1,09,15,B1, , ,B1, , ,B1, , , B27,A1,17,22,A1,23,29,A1, , ,A1, , ,A1, , ,B1, , ,B1,08,14,B1, , ,B1, , ,B1, , , B26,A1,19,25,A1, , ,A1, , ,A1, , ,A1, , ,B1, , ,B1,09,15,B1,28, ,B1, , ,B1, , , B25,A1,22,28,A1,22,27,A1, , ,A1, , ,A1, , ,B1, , ,B1,11,18,B1,26, ,B1, , ,B1, , , B24,A1,26, ,A1,13,19,A1, , ,A1, , ,A1, , ,B1, , ,B1,15,21,B1,27, ,B1, , ,B1, , , B23,A1, , ,A1,08,14,A1, , ,A1, , ,A1, , ,B1, , ,B1,18,24,B1, , ,B1, , ,B1, , , B22,A1, , ,A1,05,11,A1, , ,A1, , ,A1, , ,B1, , ,B1,21,28,B1,19,24,B1, , ,B1, , , B21,A1, , ,A1,05,11,A1, , ,A1, , ,A1, , ,B1, , ,B1,25, ,B1,11,17,B1, , ,B1, , , B20,A1, , ,A1,06,12,A1, , ,A1, , ,A1, , ,B1, , ,B1,30, ,B1,07,13,B1, , ,B1, , , B19,A1, , ,A1,08,15,A1, , ,A1, , ,A1, , ,B1, , ,B1, , ,B1,05,11,B1, , ,B1, , , B18,A1, , ,A1,15,22,A1, , ,A1, , ,A1, , ,B1, , ,B1, , ,B1,05,10,B1, , ,B1, , , B17,A1, , ,A1,22,28,A1, , ,A1, , ,A1, , ,B1, , ,B1, , ,B1,05,11,B1, , ,B1, , , B16,A1, , ,A1,16,23,A1, , ,A1, , ,A1, , ,B1, , ,B1, , ,B1,07,13,B1, , ,B1, , , B15,A1, , ,A1,13,19,A1, , ,A1, , ,A1, , ,B1, , ,B1, , ,B1,13,20,B1, , ,B1, , , B14,A1, , ,A1,12,19,A1, , ,A1, , ,A1, , ,B1, , ,B1, , ,B1,18,23,B1, , ,B1, , ,<---****A1 B13,A1, , ,A1,14,20,A1,24,30,A1, , ,A1, , ,B1, , ,B1, , ,B1,10,16,B1, , ,B1, , , B12,A1, , ,A1,15,22,A1,22,29,A1, , ,A1, , ,B1, , ,B1, , ,B1,08,14,B1, , ,B1, , , B11,A1, , ,A1,18,25,A1,26, ,A1, , ,A1, , ,B1, , ,B1, , ,B1,08,14,B1, , ,B1, , , B10,A1, , ,A1,21,27,A1,26, ,A1, , ,A1, , ,B1, , ,B1, , ,B1,11,17,B1,26, ,B1, , , B09,A1, , ,A1,24, ,A1,15,21,A1, , ,A1, , ,B1, , ,B1, , ,B1,14,20,B1,25, ,B1, , , B08,A1, , ,A1,28, ,A1,09,15,A1, , ,A1, , ,B1, , ,B1, , ,B1,17,23,B1, , ,B1, , , B07,A1, , ,A1, , ,A1,06,11,A1, , ,A1, , ,B1, , ,B1, , ,B1,20,26,B1,27,30,B1, , , B06,A1, , ,A1, , ,A1,05,11,A1, , ,A1, , ,B1, , ,B1, , ,B1,24,30,B1,16,19,B1, , , B05,A1, , ,A1, , ,A1,05,11,A1, , ,A1, , ,B1, , ,B1, , ,B1,28, ,B1,10,14,B1, , , B04,A1, , ,A1, , ,A1,08,14,A1, , ,A1, , ,B1, , ,B1, , ,B1, , ,B1,07,11,B1, , , B03,A1, , ,A1, , ,A1,12,18,A1, , ,A1, , ,B1, , ,B1, , ,B1, , ,B1,06,11,B1, , , B02,A1, , ,A1, , ,A1,20,26,A1, , ,A1, , ,B1, , ,B1, , ,B1, , ,B1,06,10,B1, , , B01,A1, , ,A1, , ,A1,18,24,A1, , ,A1, , ,B1, , ,B1, , ,B1, , ,B1,09,13,B1, , , F00,A1, , ,A1, , ,A1,14,21,A1, , ,A1, , ,B1, , ,B1, , ,B1, , ,B1,12,17,B1, , , F01,A1, , ,A1, , ,A1,13,19,A1, , ,A1, , ,B1, , ,B1, , ,B1, , ,B1,20,25,B1, , , F02,A1, , ,A1, , ,A1,13,19,A1,27, ,A1, , ,B1, , ,B1, , ,B1, , ,B1,16,20,B1, , , F03,A1, , ,A1, , ,A1,14,21,A1,26,29,A1, , ,B1, , ,B1, , ,B1, , ,B1,11,16,B1, , , F04,A1, , ,A1, , ,A1,17,24,A1,27, ,A1, , ,B1, , ,B1, , ,B1, , ,B1,11,15,B1, , , F05,A1, , ,A1, , ,A1,19,26,A1, , ,A1, , ,B1, , ,B1, , ,B1, , ,B1,12,16,B1,25, , F06,A1, , ,A1, , ,A1,22,29,A1,23,26,A1, , ,B1, , ,B1, , ,B1, , ,B1,15,18,B1,23,28, F07,A1, , ,A1, , ,A1,26, ,A1,15,19,A1, , ,B1, , ,B1, , ,B1, , ,B1,17,22,B1,23,29, F08,A1, , ,A1, , ,A1, , ,A1,10,14,A1, , ,B1, , ,B1, , ,B1, , ,B1,20,25,B1, , , F09,A1, , ,A1, , ,A1, , ,A1,08,12,A1, , ,B1, , ,B1, , ,B1, , ,B1,24,28,B1,21,26, F10,A1, , ,A1, , ,A1, , ,A1,08,11,A1, , ,B1, , ,B1, , ,B1, , ,B1,27, ,B1,13,18, trailing edge end

In the results table, the tags visible to the antenna elements are numbered, and the EPC number that is unique to each tag is displayed.

ZPL Commands for RFID

Each line in the results table gives a row number followed by readings associated with RFID tags that are visible at that row. Multiple values on a line indicate that multiple tags were visible. The order of the RFID tags is arbitrary.

[Row],[Antenna Element],[Min Read Power],[Min Write Power], [Antenna Element],[Min Read Power],[Min Write Power] ...

where

• Row = the position from the leading edge of the label where calibration occurred

• Antenna Element = the antenna used

• Minimum Read Power = calibration results (

• Minimum Write Power = calibration results (

The read and write power values are left empty (such as

In the sample results table for this example, at position

0 – 30) for a tag visible from that row

0 – 30) for the same tag

A1,,,) when no tag is found.

B25 (25 mm behind the print line), two RFID tags

are visible to the printer at antenna A1. Tag 1 (EPC 7109) can be read at power level 22 and written to at power level 28. Tag 2 (EPC BA29) can be read at power level 22 and written to at power level 27. At that position, Tags 2 and 3 are visible to antenna B1 while Tag 1 is not.

Tag 1 ,Tag 2 ,Tag 3 ,Tag 4 ,Tag 5 ,Tag 1 ,Tag 2 ,Tag 3 ,Tag 4 ,Tag 5 ,

EPC,7109 ,BA29 ,6FD0 ,58AE ,9CDE ,7109 ,BA29 ,6FD0 ,58AE ,9CDE , ...

B25,A1,22,28,A1,22,27,A1, , ,A1, , ,A1, , ,B1, , ,B1,11,18,B1,26, ,B1, , ,B1, , ,

B24,A1,26, ,A1,13,19,A1, , ,A1, , ,A1, , ,B1, , ,B1,15,21,B1,27, ,B1, , ,B1, , , B23,A1, , ,A1,08,14,A1, , ,A1, , ,A1, , ,B1, , ,B1,18,24,B1, , ,B1, , ,B1, , , B22,A1, , ,A1,05,11,A1, , ,A1, , ,A1, , ,B1, , ,B1,21,28,B1,19,24,B1, , ,B1, , , B21,A1, , ,A1,05,11,A1, , ,A1, , ,A1, , ,B1, , ,B1,25, ,B1,11,17,B1, , ,B1, , , ...

At position B23, only Tag 2 is visible to antenna A1. Tag 1 is no longer visible.

Tag 1 ,Tag 2 ,Tag 3 ,Tag 4 ,Tag 5 ,Tag 1 ,Tag 2 ,Tag 3 ,Tag 4 ,Tag 5 ,

EPC,7109 ,BA29 ,6FD0 ,58AE ,9CDE ,7109 ,BA29 ,6FD0 ,58AE ,9CDE , ... B25,A1,22,28,A1,22,27,A1, , ,A1, , ,A1, , ,B1, , ,B1,11,18,B1,26, ,B1, , ,B1, , , B24,A1,26, ,A1,13,19,A1, , ,A1, , ,A1, , ,B1, , ,B1,15,21,B1,27, ,B1, , ,B1, , ,

B23,A1, , ,A1,08,14,A1, , ,A1, , ,A1, , ,B1, , ,B1,18,24,B1, , ,B1, , ,B1, , ,

B22,A1, , ,A1,05,11,A1, , ,A1, , ,A1, , ,B1, , ,B1,21,28,B1,19,24,B1, , ,B1, , , B21,A1, , ,A1,05,11,A1, , ,A1, , ,A1, , ,B1, , ,B1,25, ,B1,11,17,B1, , ,B1, , , ...

At position B13, Tag 3 (EPC 6FD0) becomes visible to antenna A1 and can be read with at power level 24 and written to at power level 30.

Tag 1 ,Tag 2 ,Tag 3 ,Tag 4 ,Tag 5 ,Tag 1 ,Tag 2 ,Tag 3 ,Tag 4 ,Tag 5 ,

EPC,7109 ,BA29 ,6FD0 ,58AE ,9CDE ,7109 ,BA29 ,6FD0 ,58AE ,9CDE , ... B16,A1, , ,A1,16,23,A1, , ,A1, , ,A1, , ,B1, , ,B1, , ,B1,07,13,B1, , ,B1, , , B15,A1, , ,A1,13,19,A1, , ,A1, , ,A1, , ,B1, , ,B1, , ,B1,13,20,B1, , ,B1, , , B14,A1, , ,A1,12,19,A1, , ,A1, , ,A1, , ,B1, , ,B1, , ,B1,18,23,B1, , ,B1, , ,<---****A1

B13,A1, , ,A1,14,20,A1,24,30,A1, , ,A1, , ,B1, , ,B1, , ,B1,10,16,B1, , ,B1, , ,

...

ZPL Commands for RFID

The arrow (<---****) in the table indicates that a valid program position and power levels were found during calibration. The program position is identified at the top of the table as 14 millimeters). The optimal antenna element at that position is A1. The optimal read power is 18, and the optimal write power is 25.

start

position=B14 MM,A1,18,25

tid information=E200.3414:Alien leading edge ... B14,A1, , ,A1,12,19,A1, , ,A1, , ,A1, , ,B1, , ,B1, , ,B1,18,23,B1, , ,B1, , ,<---****A1 ...

position=B14 MM (backfeed

^HV

Host Verification

Use this command to return data from specified fields, along with an optional ASCII header, to the host computer. You can use this command with any field that has been assigned a number with the commands.

ZPL Commands for RFID

^FN and ^RF

Format:

#= field number specified

with another command

n = number of bytes to be

returned

h = header to be returned

with the data

t = termination This field is Field Hex (^FH) capable.

a = command applies to When ^PQ is greater than 1 or if a void label occurs, send one response for

^HV#,n,h,t,a

Parameters Details

The value assigned to this parameter should be the same as the one used in another command.

Values:

Default: 0

Values:

Default: 64

Delimiter characters terminate the string. This field is Field Hex (^FH) capable.

Values:

Default: no header

Values: 0 to 3072 characters

a label format or one for every label printed.

Values:

0 to 9999

1 to 256

0 to 3072 bytes

•

F = Format

•

L = Label

Default:

The following code:

^XA . . .

^FH_^HV0,8,EPC[,]_0D_0A,L^FS ^PQ2 ^XZ

Would return data similar to this:

EPC[12345678] EPC[55554444]

^RB

Define EPC Data Structure

Description: Use this command to define the structure of EPC data, which can be read from or written to an RFID tag. For more information about EPC specifications, refer to the EPC Global web site. All parameters in this command are persistent and will be used in subsequent formats if not provided. The values are initially set to the default values.

RFID tags can have different partitions defined. This command specifies the number of partitions and how many bits are in each partition.

ZPL Commands for RFID

Format:

n = total bit size of the

partitions

p0 ... p15 =

partition sizes

Example: The following command specifies that there are 96 bits used with three fields. Fields 1, 2, and 3 contain 10, 26, and 60 bits, respectively.

The ZPL code to encode a tag with this format would look like this:

When the tag is being encoded, the tag stores the data in the following way:

• Field 1 contains

^RBn,p0,p1,p2, ..., p15

Parameters Details

Specify the number of bits to include in the partitions.

Values: 1 to

Default: 96

Specify the number of bits to include in the individual partitions. The partition sizes must add up to the bit size specified for the previous parameter. The largest individual partition size is 64 bits.

Values: 1 to 64

Default: 1

^RB96,10,26,60

^RFW,E^FD1000.67108000.1122921504606846976^FS

1000. This value is stored in the first 10 bits

n, where n is the bit size of the tag.

• Field 2 contains

• Field 3 contains

Example: The following command specifies that there are 64 bits used with eight 8-bit fields.

^RB64,8,8,8,8,8,8,8,8^FS

The ZPL code to encode a tag with this format would look like this:

^RFW,E^FD1.123.160.200.249.6.1.0^FS

When writing to the tag, each set of data is written in its respective 8-bit field.

67108000. This value is stored in the next 26 bits.

1122921504606846976. This value is stored in the remaining 60 bits.

ZPL Commands for RFID

48.1.6.770289.10001025.1

Example: This example uses the SGTIN-96 standard, which defines 96-bit structure in the following way:

Header Filter Value Partition

SGTIN-96 8 bits 3 bits 3 bits 20–40 bits 24 bits 38 bits

(binary value)

* Capacity of Item Reference field varies with the length of the company prefix.

8 (decimal capacity)

Company

Prefix Index

16,383 (decimal capacity)

Item

Reference

9 to 1,048,575

(decimal

capacity*)

The ZPL code to encode a tag with this format would look like this:

^XA ^RB96,8,3,3,20,24,38^FS ^RFW,E^FD48,1,6,770289,10001025,1^FS ^XZ

These commands would put

•

48 in the header

•

1 as the filter value

• 6 as the partition (indicates a 20-bit prefix and 24-bit item reference)

•

770289 as the company prefix

•

10001025 as the item reference

•

1 as the serial number

Serial

Number

33,554,431

(decimal

capacity)

To read this EPC data and print the results on the label, you would use the following code:

^XA ^RB96,8,3,3,20,24,38^FS ^FO50,50^A0N,40^FN0^FS ^FN0^RFR,E^FS ^XZ

The resulting label would look like this:

^RF

Read or Write RFID Format

Description: Use this command to read or write to (encode) an RFID tag or to specify the access password.

When using this command to read a tag, you may use a field variable to print the tag data on the label or to return the data to the host. See Create and Send an RFID Label Format on page 20 for examples that use a field variable. See Gen 2 Memory Map on page 8 to see how information is stored on a Gen 2 tag.

ZPL Commands for RFID

Format:

o = operation Specifies the action to be performed.

f = format

^RFo,f,b,n,m

Parameters Details

Values:

W = write to (encode) the tag

R = read the tag

S = specify the access password

Default:

Values:

A = ASCII

H = Hexadecimal

E = EPC (ensure proper setup with the ^RB command)

Default:

Parameters Details

b = password

b = starting block number

ZPL Commands for RFID

What you specify for this parameter depends on what you enter for other parameters.

NOTE: When the Gen 2 memory bank parameter is set to

E (EPC 96-bit) or A (EPC and Auto adjust PC bits), W and R values

are always set to 2.

If the Operation parameter value is...

Values:

P, which indicates that an access password, a kill password, or both follow

in a ^FD command. Each password must be 8 hex characters. If the password is omitted, it is not written. An access password is used in subsequent lock commands in the format.

0 to n, which specifies the 16-bit starting block number, where n is the maximum number of blocks for the bank specified in the memory bank parameter.

Default: 0

n = number of bytes to

read or write

Values:

0 to n, which specifies the 16-bit starting block number, where n is the maximum number of blocks for the bank specified in the memory bank parameter.

Default: 0

This parameter must be P and must be followed by the access password in a ^FD command.

Specifies the number of bytes to read or write.

When

E or A is specified for the memory bank parameter, this value is not

required.

Values: 1 to

, where n is the maximum number of bytes for the tag.

Default: 1

ZPL Commands for RFID

Parameters Details

m = Gen 2 memory bank Specifies the Gen 2 memory bank. See Gen 2 Memory Map on

page 8 for more information about Gen 2 memory.

Values:

E = EPC 96-bit (When writing data, this parameter performs the operation

on Gen 2 bit address 20 When reading data, this parameter reads the amount of data specified in the PC bits on the tag.)

A = EPC and Auto adjust PC bits (When writing data, this parameter

performs the operation on Gen 2 bit address 20 and accesses the number of bytes specified in the updated to match the amount of data written to the tag. When reading data, this parameter reads the amount of data specified in the PC bits on the tag.

0 = Reserved

1 = EPC

2 = TID (Tag ID)

3 = User

and accesses 12 bytes of the EPC memory bank.

of the EPC memory bank

^FD. The PC bits will be

Default:

Example: This example encodes 96-bit EPC data, as specified by the ^RB command.

^XA ^RB96,8,3,3,20,24,38 ^RFW,E^FD16,3,5,78742,146165,1234567891^FS ^XZ

Example: This example encodes 4 bytes of hexadecimal formatted data, starting in block 3 of Gen 2 EPC bank 1. (The

^RS command can be omitted for printers that use Gen 2 tag types only.)

^XA ^RFW,H,3,4,1^FD11112222^FS ^XZ

Example: This example reads the extended Gen 2 tag ID (TID) and returns the results to the host computer. The results are labeled with the header “8-byte Tag ID Data.” (The

^RS command can be

omitted for printers that use Gen 2 tag types only.)

^XA ^RFR,H,0,8,2^FN1^FS^HV1,,8-byte Tag ID Data:^FS ^XZ

Example: This command writes and specifies both the access password ( (

88887777) separated by a comma.

12345678) and the kill password

^RFW,H,P^FD12345678,88887777^FS

This command writes the access password only:

^RFW,H,P^FD12345678^FS

This command writes the kill password only (a comma must be used before it to distinguish it from an access password):

^RFW,H,P^FD,88887777^FS

See the examples for ^RL on page 50 for how this command would be used in a format.

ZPL Commands for RFID

Example: This command writes 1122334455667788 to the bit address 20h of the EPC memory and updates the PC bits bit address 10h to 14h to reflect 8 bytes (4 words) of data.

^RFW,H,,,A^FD1122334455667788^FS

Example: This command specifies the access password for the tag, which will be used in subsequent lock commands in the format. The access password specified must match the one stored on the tag. This command does not write the password to the tag. See the examples for ^RL on page 50 for how this command would be used in a format.

^RFS,H,P^FD12345678^FS

ZPL Commands for RFID

^RL

Lock/Unlock RFID Tag Memory

The ^RL command has two distinct formats and functions:

•

^RLM – Lock/Unlock the Specified Memory Bank

Locks a password or an entire memory bank in a writeable or unwriteable state. These locks/unlocks can be permanent or reversible.

•

^RLB – Permanently Lock Specified Memory Sections

Locks blocks of user memory in an unwriteable state.

^RLM – Lock/Unlock the Specified Memory Bank

Description: The ^RLM command locks/unlocks the specified password or memory bank on an RFID tag. You can use this command to do the following:

• lock individual passwords, thereby preventing or allowing subsequent reads or writes of that password

• lock individual memory banks, thereby preventing or allowing subsequent writes to those banks

• Permanently lock (permalock) the lock status for a password or memory bank

Format:

k = kill password function

a = access password

function

e = EPC memory bank

function

u = USER memory bank

function

* The access password must be set to something other than the default of 00000000 to use this value. See the examples for this command for guidance.

^RLM,k,a,e,u

Parameters Details

Values:

U = unlock the kill password*

L = lock the kill password*

O = permanently unlock (Open) the kill password

P = permanently lock (Protected) the kill password

Values:

U = unlock the access password*

L = lock the access password*

O = permanently unlock (Open) the access password

P = permanently lock (Protected) the access password

Values:

U = unlock the EPC memory bank*

L = lock the EPC memory bank*

O = permanently unlock (Open) the EPC memory bank

P = permanently lock (Protected) the EPC memory bank

Values:

U = unlock the USER memory bank*

L = lock the USER password bank*

O = permanently unlock (Open) the USER memory bank

P = permanently lock (Protected) the USER memory bank

ZPL Commands for RFID

^RLB – Permanently Lock Specified Memory Sections

Description: The ^RLB command permanently locks (permalocks) one or more sections (individual sub-portions) in a tag’s user memory. The section sizes for each tag is defined by the tag manufacturer.

Format:

s = starting section Specify the starting section of memory to lock.

n = number of sections Specify the number of sections to lock.

Example: The following command locks all memory banks using a previously specified access password.

^RLM,L,L,L,L^FS

Example: The following command locks the user memory banks using a previously specified access password.

^RLM,,,,L^FS

Example: The following command permalocks sections 0 to 4 of user memory using a previously specified access password.

^RLB,0,4^FS

Example: This code does the following:

• writes 12 bytes to user memory

• writes “12345678” to the access password and “11223344” to the kill password

• permalocks 6 sections of user memory using “12345678” as the access password

• locks the kill and access passwords and permanently unlocks the EPC memory, using “12345678” as

^XA ^RFW,H,0,12,3^FD112233445566778899001122^FS ^RFW,H,P^FD12345678,11223344^FS ^RLB,0,6^FS ^RLM,L,L,O^FS ^XZ

^RLB,s,n

Parameters Details

the access password

Example: This code does the following:

• writes 12 bytes to user memory

• permalocks 6 sections of user memory using “00000000” as the access password

• permalocks the kill password and access password using “00000000” as the access password

^XA ^RFW,H,0,12,3^FD112233445566778899001122^FS ^RLB,0,6^FS ^RLM,P,P^FS ^XZ

~RO

Before

After

Reset Advanced Counters

The ~RO command resets the advanced counters used by the printer to monitor label generation in inches, centimeters, and number of labels.

ZPL Commands for RFID

Format:

c = counter number

Example: This example shows how the counter portion of the printer configuration labels looks when the RFID counters are reset by sending

~ROc

Parameters Details

Values:

1 = reset counter 1

2 = reset counter 2

3 = reset valid RFID label counter

4 = reset voided RFID label counter

C = reset head cleaned counter

R = reset head replaced counter and head cleaned counter

Default: a value must be specified or the command is ignored

~RO3 and ~RO4.

^RR

Enable Adaptive Antenna Selection

Description: Use this command to enable the adaptive antenna element selection feature.

This command is persistent and will be used in subsequent formats if not provided.

ZPL Commands for RFID

Format:

n = number of retries Reserved

a = adaptive antenna

element selection

^RRn,a

Parameters Details

If the printer cannot find RFID tags with the antenna element specified during the number of retries specified (if applicable), the printer may try neighboring antenna elements. If the printer is unsuccessful communicating with the RFID tag after trying the neighboring antenna elements, the printer voids the label.

Values:

0 = None. The printer uses only the current antenna element selection.

1 = Neighbors. The printer attempts to read the tag using the antenna

elements to the left/right and above/below the current antenna element. The antenna element that is successful is used for all subsequent RFID commands until the next unsuccessful attempt.

NOTES:

• This parameter is valid only on ZT400 and ZT600 Series RFID printers.

• The label length must be 2 in. (51 mm) or longer.

• Activating this feature may slow throughput on damaged or weak RFID tags.

Default:

Example: This example sets the adaptive antenna element selection to 1 (Neighbors).

^XA ^RR,1 ^XZ

^RS

Set Up RFID Parameters

Use this command to set up RFID parameters including tag type; programming position; and error handling, such as setting the number of labels that will be attempted if an error occurs.

For example, if an RFID label fails to program correctly or if the transponder cannot be detected, the printer ejects the label and prints format for the number of labels specified (parameter handling instructions specified by the error handling parameter (parameter problematic format from the print queue and proceed with the next format (if one exists in the buffer), or it may place the printer in Pause or Error mode.

ZPL Commands for RFID

VOID across it. The printer will try to print another label with the same data and

n). If the problem persists, the printer follows the error

e): the printer may remove the

IMPORTANT: Use care when using this command in combination with can occur if the data read from the tag is going to be printed on the label. Any data read from the tag must be positioned to be printed above the read/write position. Failure to do this will prevent read data from being printed on the label.

Format: ^RSt,p,v,n,e,a,c,s

Parameters Details

t = tag type

p = read/write position of

the tag (programming position)

Values:

8 = EPC Class 1, Generation 2 (Gen 2)

Default:

This parameter sets the read/write position of the tag.

Values:

F0 to Fxxx

(where The printer prints the first part of a label until it reaches the specified distance and then begins programming. After programming, the printer prints the remainder of the label.

B0 to B30

The printer backfeeds the label for the specified distance and then begins programming. To account for the backfeed, allow empty media liner to extend out of the front of the printer when using a backward programming position.

8—Gen 2 is the only tag type valid for this printer.

xxx is the label length in millimeters or 999, whichever is less)

^RF for reading tag data. Problems

Default:

v = length of void printout Sets the length of the void printout in vertical (Y axis) dot rows.

Values:

Default: label length

n = number of labels to try

encoding

The number of labels that will be attempted in case of read/encode failure.

Values:

Default: 3

F0 (which moves the leading edge of the label to the print line)

0 to label length

1 to 10

ZPL Commands for RFID

Parameters Details

e = error handling If an error persists after the specified number of labels are tried, perform

this error handling action.

Values:

N = No action (printer drops the label format causing the error and moves

to the next queued label)

P = Place printer in Pause mode (label format stays in the queue until the

user cancels)

E = Place printer in Error mode (label format stays in the queue until the

user cancels)

Default:

NOTE: You can set the printer to send an error message to the host for each failure. To enable or disable this unsolicited error message, refer to the

^SX and ^SQ ZPL commands. Use V for the

condition type for an RFID error.

a = signals on applicator Not applicable.

c = reserved Not applicable.

s = void print speed NOTE: This parameter is not supported on all printer models.

If a label is voided, the speed at which “VOID” will be printed across the label.

Values: any valid print speed

Default: the printer’s maximum print speed

Example: The following are examples of setting the programming position.

^RS,F1 sets the encode position 1 mm forward from the leading edge of the label.

^RS,B10 sets the encode position 10 mm backwards from the leading edge of the label.

^RS,F0 sets the encode position at the leading edge of the label.

^RS,B0 sets the encode position at the leading edge of the label.

ZPL Commands for RFID

print direction

encoding area

print line

tear bar

^RS,F90, 90 mm from the leading

edge of the label

Example: The following shows the programming position for the tag position parameter (parameter p) with a 6-inch (152-mm, 1216-dot) label length.

ZPL Commands for RFID

^RU

Read Unique RFID Chip Serialization

Use this command to read the TID (Tag ID) data from the current chip and format a unique 38-bit serial number, which will be placed in the lower (least significant) 38 bits of the EPC code.

Format:

^RUa,b

Parameters Details

a = prefix Specifies the prefix in ASCII Binary

Values: Only ASCII characters 1 and 0 are accepted. Maximum of 38 characters.

The number of bits in the value specifies the length of the prefix. The prefix is placed as the left-most (most significant) bits in the unique serial number.

If nothing is specified, the default value will be used.

Default: The MCS prefix is determined by the MDID in the TID of the chip read:

100 = EM Micro

Impinj = 101

Alien = 110

NXP = 111

b = special character Special character for serial number inclusion.

Values: Any ASCII character other than the current Command character, Control character, Delimiter character, or any of the Real-Time Clock (RTC) characters.

Default:

NOTE: Serial number inclusion:

One of several data elements can be included into any

^FD data string in the same way that Real Time

Clock data is included. Use any of the commands below to include a data pattern based on the serial number. These are defined using the default value for the Special Character.

#S = include 38-bit serial number derived from TID in decimal form.

#H = include 38-bit serial number derived from TID in hexadecimal form.

#E = include the entire 96-bit EPC code, including the 38-bit serial number derived from TID in decimal

form.

#F = include the entire 96-bit EPC code, including the 38-bit serial number derived from TID in

hexadecimal form.

#P = include the entire 96-bit EPC code, but use the tag’s preprogrammed, 38-bit SGTIN serial number in

decimal form.*

#Q = include the entire 96-bit EPC code, but use the tag’s preprogrammed, 38-bit SGTIN serial number in

hexadecimal form.*

* If the EPC has been preprogrammed (typically by the manufacturer) with the chip-based RFID serialization scheme, then the serialized data does not have to be written back to the EPC memory, which saves time. from the EPC memory bank.

#P and #Q simply format the data that is read

ZPL Commands for RFID

Example: Read the TID from the tag, create a serial number based on the tag type, write 12<serial

number (5 bytes)>000000000000

the label.

^XA ^RU ^FO10,10^A0N,50,50^FDSerial Number: #H^FS ^RFW,H^FD12#H^FS ^XZ

Example: Read the TID from the tag, create a serial number based on the tag type, write the serial number to the EPC field (lower 38 bits) while maintaining the contents of the rest of the EPC memory, print

Number: <serial number in hex format> hex format>

to the host. Perform this operation on three label formats.

^XA ^RU ^FO10,10^A0N,50,50^FN1^FS ^FN1^FDSerial Number: #H^FS ^FH^HV1,24, ,_0D_0A,L^FS ^RFW,H^FD#F^FS ^PQ3 ^XZ

to the 96-bit EPC field, and print the serial number (in hex format) on

Serial

on the label, and return Serial Number: <serial number in

Example: Read the full EPC (already serialized) from the tag, print

decimal format>

on the label, and return Serial Number: <full EPC in decimal format> to the host.

^XA ^RU ^FO10,10^A0N,50,50^FN1^FS ^FN1^FDSerial Number: #P^FS ^FH^HV1,44, ,_0D_0A,L^FS ^XZ

Serial Number: <full EPC in

ZPL Commands for RFID

^RW

Set RF Power Levels for Read and Write

Use this command to set the RFID read and write power levels if the desired levels are not achieved through RFID tag calibration. If not enough power is applied, the tag may not have sufficient power for programming, and tag data will fail to encode. If too much power is applied, the extra power may cause data communication errors or may cause the wrong tag to be programmed.

NOTE: Printers automatically select the best antenna element and read/write power levels for the media during RFID transponder calibration. The ZT400 and ZT600 series printers also may set the levels during an adaptive antenna sweep. Use ^HL or ~HL on page 35 to view the antenna element and power settings being used.

NOTE: For Japan, the printer’s maximum RFID read and write power are limited to comply with local radio regulations. Any power setting of 24 or higher results in the same output.

Format: ^RWr,w,a

Parameters Details

r = read power This parameter sets the power level to match the desired output as

calibrated in the factory.

Values: 0 to 30

Default: 16

w = write power This parameter sets the power level to match the desired output as

calibrated in the factory.

Values: 0 to 30

Default: 16

Parameters Details

a = RFID antenna element selection

ZPL Commands for RFID

This parameter specifies the RFID antenna to be used for RFID operation.

NOTES:

• This applies only to ZT400 and ZT600 series RFID printers, which have multiple antenna elements. Other printers, which only have one antenna element, always use an antenna element value of

A1.

• Printers automatically select the best antenna element and read/write power levels for the media during RFID transponder calibration. The ZT400 and ZT600 series printers also may set the levels during an adaptive antenna sweep. Use ^HL or ~HL on

page 35 to view the antenna element and power settings being

used.

Values:

A1, A2, A3, A4

B1, B2, B3, B4

C1, C2, C3, C4

D1, D2, D3, D4

E1, E2, E3, E4

Default: A4

SGD Commands for RFID

This section contains the SGD commands for RFID-specific applications.

device.applicator.rfid_void

This command will specify if a "high" or "low" value is used for the RFID void signal, which occurs when an RFID label is voided by the printer.

NOTE: This command is supported only on the ZT411/ZT421 and ZT600 Series printers.

Setvar

To set the value:

! U1 setvar "device.applicator.rfid_void" "value"

Values

high, low

Default

low

SGD Printer Commands

Getvar

To instruct the printer to respond with the currently set value:

! U1 getvar "device.applicator.rfid_void"

SGD Commands for RFID

Before

After

odometer.rfid.valid_resettable

This command resets the RFID valid label counter to zero.

Setvar

To set the RFID valid counter to zero:

! U1 setvar "odometer.rfid.valid_resettable" "value"

Values

“0”

Getvar

To respond with the current RFID valid counter value:

! U1 getvar "odometer.rfid.valid_resettable"

Example

This setvar example shows how the counter portion of the printer configuration labels looks when the RFID valid counter is reset by sending:

! U1 setvar "odometer.rfid.valid_resettable" "0"

odometer.rfid.void_resettable

Before

After

This command resets the RFID void label counter to zero.

Setvar

To set the RFID void counter to zero:

! U1 setvar "odometer.rfid.void_resettable" "value"

Values

“0”

Getvar

To respond with the current RFID void counter value:

! U1 getvar "odometer.rfid.void_resettable"

Example

SGD Commands for RFID

This setvar example shows how the counter portion of the printer configuration labels looks when the RFID void counter is reset by sending:

! U1 setvar "odometer.rfid.valid_resettable" "0"

rfid.adaptive_antenna

This command enables or disables adaptive antenna selection.

NOTES:

• This command is valid only on ZT400 and ZT600 series RFID printers.

• The label length must be 2 in. (51 mm) or longer.

• Activating this feature may slow throughput on damaged or weak RFID tags.

Setvar

To enable or disable the adaptive antenna feature:

! U1 setvar "rfid.adaptive_antenna" "value"

Values

SGD Commands for RFID

Default

Getvar

• none = The printer uses only the current antenna element selection.

•

neighbors = The printer attempts to read the tag using the antenna elements to the left/right and

above/below the current antenna. The antenna element that is successful is used for all subsequent RFID commands until the next unsuccessful attempt.

none

To retrieves the current adaptive antenna setting:

! U1 getvar "rfid.adaptive_antenna"

rfid.antenna_sweep

This command enables/disables the antenna sweep feature.

If the RFID media loaded in the printer is known to be in range of an antenna at the F0 programming position, you can avoid RFID calibration by using the RFID antenna sweep feature. With this feature enabled, when the first RFID format is sent after a printer powerup or printhead close, the printer scans through the antennas to find the optimal antenna element.

NOTES:

• This command is valid only on ZT400 and ZT600 series RFID printers.

SGD Commands for RFID

Setvar

Values

Default

Getvar

• The label length must be 2 in. (51 mm) or greater, and the programming position must be

To enable or disable the antenna sweep feature:

! U1 setvar "rfid.antenna_sweep" "value"

on, off

off

To retrieve the current antenna sweep setting:

! U1 getvar "rfid.adaptive_sweep"

F0.

rfid.country_code

This command sets or returns the RFID reader country code. The country code is restricted based on the region code assigned to the reader and, in some instances, cannot be modified. You can check the countries available for your region through the control panel menu items on your printer.

Setvar

To set the RFID reader’s current country code

! U1 setvar "rfid.country_code" "value"

Values

The country code choices available vary depending on the region for which your printer is configured.

Getvar

To retrieve the RFID reader’s current country code:

! U1 getvar "rfid.country_code"

SGD Commands for RFID

Example

In this example, the setvar sets the country code to USA/Canada.

! U1 setvar "rfid.country_code" "usa/canada"

rfid.enable

SGD Commands for RFID

This command instructs an RFID printer to enable or disable RFID functionality. You must restart the printer for the command to take effect.

Setvar

Values

Default

NOTE: When this function is set to " defaults does NOT:

• Default the sensor select setting

• Default media tracking sensor settings

• Default label length

• Perform an auto calibration

To enable or disable RFID functionality:

! U1 setvar "rfid.enable" "value"

on = enables RFID functionality

off = disables RFID functionality

on," changes are made to normal printer functionality. Loading printer

rfid.error.response

This command can be used to retrieve the RFID status, including any error codes or messages. See RFID

Error Codes and Messages on page 31 for more information.

Getvar

To retrieve any active RFID error messages:

! U1 getvar "rfid.error.response"

Example

This getvar example shows responses that you may get in different situations:

! U1 getvar "rfid.error.response"

If no RFID tag is present, you get the following response:

NO TAG FOUND

If an RFID tag is present and there are no errors, you get the following response:

SGD Commands for RFID

RFID OK

rfid.hop_table_version

This command retrieves the RFID reader’s hop table version.

Getvar

To retrieve the RFID reader’s hop table version:

! U1 getvar "rfid.hop_table_version"

SGD Commands for RFID

rfid.log.clear

This command clears the RFID host log.

Setvar

To set the command:

! U1 setvar "rfid.log.clear" ""

Values

To clear the RFID host logs:

! U1 do "rfid.log.clear" ""

Values

SGD Printer Commands

rfid.log.enabled

This command enables or disables the RFID host log.

Setvar

To set the command:

! U1 setvar "rfid.log.enabled" "value"

Values

"yes" = enables the RFID host log

"no" = disables the RFID host log

Default

"no"

Example

SGD Printer Commands

Getvar

In this example, the setvar enables the RFID host log.

! U1 setvar "rfid.log.enabled" "yes"

To view the current setting value:

! U1 getvar "rfid.log.enabled"

rfid.log.entries

This command returns the RFID host log. This command is equivalent to the ^HL and ~HL command. Host logs are not displayed during an ALLCV.

Getvar

To get the RFID host logs:

! U1 getvar "rfid.log.entries"

Result

[0x02]<start> Nov-13-2017 23:31:30,R,F0,A1,16,00000000,E200905962180075209038CD ... <end>[0x03]

In this example, "..." can be more entries.

[0x02] and [0x03] are the STX and ETX binary characters.

SGD Printer Commands

rfid.position.program

This command sets the read/write position of the tag (programming position). For more information, see

Using the Correct RFID Settings on page 12.

IMPORTANT: If this command is used to specify a value for the programming position, this value will be used for the programming position for all labels until a new position is specified or until the tag calibration procedure is run.

Setvar

This command instructs the printer to set the read/write position of the RFID tag.

! U1 setvar "rfid.position.program" "value"

Values

• F0 to Fxxx (where xxx is the label length in millimeters or 999, whichever is less) The printer prints the first part of a label until it reaches the specified distance and then begins

programming. After programming, the printer prints the remainder of the label.

•

B0 to B30

SGD Commands for RFID

Default

Getvar

Example

•

up = move to the next value

down = move to the previous value

•

F0 (which moves the leading edge of the label to the print line)

This command instructs the printer to respond with the current programming position.

! U1 getvar "rfid.position.program"

This example shows the programming position being set at 15 mm from the leading edge of the label.

! U1 setvar "rfid.position.program" "F15"

When the setvar value is set to "F15", the getvar result is F15.

rfid.reader_1.antenna_port

This command specifies the RFID antenna to be used for RFID operation.

NOTES:

• This applies only to ZT400 and ZT600 series RFID printers, which have multiple antenna elements.

Other printers, which only have one antenna element, always use an antenna element value of

• Printers automatically select the best antenna element and read/write power levels for the media

during RFID transponder calibration. The ZT400 and ZT600 series printers also may set the levels during an adaptive antenna sweep. Use ^HL or ~HL on page 35 to view the antenna element and power settings being used.

Setvar

Sets the antenna port.

! U1 setvar "rfid.reader_1.antenna_port" "value"

Values

E1, E2, E3, E4

SGD Commands for RFID

A1.

, D2, D3, D4

, C2, C3, C4

, B2, B3, B4

, A2, A3, A4

Default

Getvar

Example

SGD Commands for RFID

Retrieves the current antenna port.

! U1 getvar "rfid.reader_1.antenna_port"

This setvar example shows the selection of antenna port D3.

! U1 setvar "rfid.reader_1.antenna_port" "D3"

When the setvar value is set to "D3", the getvar result is "D3".

SGD Commands for RFID

rfid.reader_1.firmware_version

This command returns the RFID reader firmware version.

Getvar

To return the RFID reader firmware version:

! U1 getvar "rfid.reader_1.firmware_version"

Example

This example shows responses that you get in different situations:

! U1 getvar "rfid.reader_1.firmware_version"

If an RFID reader is present and connected, you get the firmware version in the following format:

xx.xx.xx.xx

If there is no RFID reader or if the reader is not connected correctly, the response is blank.

SGD Commands for RFID

rfid.reader_1.hardware_version

This command returns the RFID reader hardware version.

Getvar

To return the RFID reader hardware version:

! U1 getvar "rfid.reader_1.hardware_version"

Example

This example shows responses that you get in different situations:

! U1 getvar "rfid.reader_1.hardware_version"

If an RFID reader is present and connected, you get the hardware version in the following format:

xx.xx.xx.xx

If there is no RFID reader or if the reader is not connected correctly, the response is blank.

rfid.reader_1.model

This command returns the printer’s RFID reader model number.

Getvar

To return the printer’s RFID reader model number:

! U1 getvar "rfid.reader_1.model"

SGD Commands for RFID

rfid.reader_1.power.read

This command sets the RFID reader power level for reading RFID tags.

Setvar

Instructs the printer to set the antenna’s read power level.

! U1 setvar "rfid.reader_1.power.read" "value"

Values

• 0 to 30

• up = increase the current value by 1

•

down = decrease the current value by 1

SGD Commands for RFID

Default

Getvar

Example

To teturn the antenna’s read power level:

! U1 getvar "

This setvar example sets the antenna to power setting 16 for reading RFID tags.

! U1 setvar "rfid.reader_1.power.read" "16"

When the

rfid.reader_1.power.read"

setvar value is set to "16", the getvar result is 16.

rfid.reader_1.power.write

Use this command to set the RFID write power levels if the desired levels are not achieved through RFID tag calibration. If not enough power is applied, the tag may not have sufficient power for programming, and tag data will fail to encode. If too much power is applied, the extra power may cause data communication errors or may cause the wrong tag to be programmed.

Setvar

Instructs the printer to set the antenna’s write power level.

! U1 setvar "rfid.reader_1.power.write" "value"

Values

• 0 to 30

SGD Commands for RFID

Default

Getvar

Example

• up = increase the current value by 1

•

down = decrease the current value by 1

To teturn the antenna’s write power level:

! U1 getvar "

This setvar example sets the antenna to power setting 16 for writing RFID tags.

! U1 setvar "rfid.reader_1.power.write" "16"

When the

rfid.reader_1.power.write"

setvar value is set to "16", the getvar result is 16.

rfid.recipe_version

The RFID recipe file controls how the printer manages RFID tag encoding, according to the type of tag in use.

This command returns the version number of the RFID recipe file currently in use. The RFID recipe file is named RFIDRCPE.XML. The default location for this file is Z:RFIDRCPE.XML. If a file using the same name is stored in the E: memory location, it will be used instead of the file stored in the Z: memory location.

Getvar

To return the version number of the RFID recipe file currently in use:

! U1 getvar "rfid.recipe_version"

SGD Printer Commands

rfid.region_code

This command returns the region code assigned to the printer’s RFID device.

Getvar

To retrieve the RFID region code:

! U1 getvar "rfid.region_code"

Values

• not available

•

usa/canada

•

japan

•

rest of world

SGD Commands for RFID

rfid.tag.calibrate

Use this command to initiate tag calibration for RFID media. During the process, the printer moves the media, calibrates the RFID tag position, and determines the optimal settings for the RFID media being used. Depending on the printer, these settings include the programming position, the antenna element to use, and the read/write power level to use.

NOTE: Before running this command, load the printer with RFID media, calibrate your printer, close the printhead, and feed at least one label to make sure that tag calibration will begin from the correct position. For more information on media calibration, refer to the User Guide for your printer.

Setvar

To initiate tag calibration for RFID media:

! U1 setvar "rfid.tag.calibrate" "value"

SGD Commands for RFID

Values

restore

run

Example

This setvar example restores the programming position back to the printer’s default value.

! U1 setvar "rfid.tag.calibrate" "restore"

This

! U1 setvar "rfid.tag.calibrate" "run"

setvar example performs RFID tag calibration.

rfid.tag.data

This command tells the RFID reader to attempt to read a tag over the RFID antenna, even if the printhead is open. Results are returned to the host.

Before running this command, position an RFID label over the printer’s RFID antenna. To locate the RFID antenna on your printer, see rfid.reader_1.antenna_port on page 75.

Getvar

To return the current tag’s data:

! U1 getvar "rfid.tag.data"

ExampleS

This example gets the current tag’s data, assuming that an RFID label with data “0123456789ABCDEF12345678” is in place over the antenna.

The printer responds with “0123456789ABCDEF12345678”.

SGD Commands for RFID

! U1 setvar "rfid.tag.data"

This example gets the current tag’s data, assuming that no tag data can be read or that no tag is present.

! U1 setvar "rfid.tag.data"

The printer responds with “NO DATA”.

rfid.tag.read.content

This command instructs the printer which data to read from the tag with the rfid.tag.read.execute command. (See rfid.tag.read.execute on page 87.)

Setvar

To instruct the printer which data to read from the tag with the rfid.tag.read.execute command:

! U1 setvar "rfid.tag.read.content" "value"

Values

• epc = reads the EPC data based on the EPC size specified in the RFID tag’s protocol bits, up to 160 bits

•

tid information = reads the first 32 bits of the TID (Tag ID)

•

password status = reads the tag’s access and kill passwords

•

protocol bits = reads the protocol bits from the EPC memory banks and converts that value to the

EPC size

SGD Commands for RFID

Default

Getvar

•

memory bank sizes = reads the EPC, TID, and user memory banks sizes

•

up = sets the command to the previous test

•

down = sets the command to the next test

epc

To retrieve the current setting:

! U1 getvar "rfid.tag.read.content"

rfid.tag.read.execute

This command reads the data specified by the rfid.tag.read.content command. (See

rfid.tag.read.content on page 86.)

Setvar

To read the specified data:

! U1 setvar "rfid.tag.read.execute"

SGD Commands for RFID

rfid.tag.read.result_line1

This command reports the results of the rfid.tag.read.execute command.

Getvar

To retrieve the results of the rfid.tag.read.execute command:

! U1 getvar "rfid.tag.read.result_line1"

SGD Commands for RFID

rfid.tag.read.result_line1_alternate

This command reports the results of the rfid.tag.read.execute command.

Getvar

To retrieve the results of the rfid.tag.read.execute command:

! U1 setvar "rfid.tag.read.result_line1_alternate"

rfid.tag.read.result_line2

This command reports the results of the rfid.tag.read.execute command.

Getvar

To retrieve the results of the rfid.tag.read.execute command:

! U1 setvar "rfid.tag.read.result_line2"

SGD Commands for RFID

rfid.tag.read.result_line2_alternate

This command reports the results of the rfid.tag.read.execute command.

Getvar

To retrieve the results of the rfid.tag.read.execute command:

! U1 getvar "rfid.tag.read.result_line2_alternate"

rfid.tag.test.content

This command instructs the printer which test to perform on the tag with the rfid.tag.test.execute command. (See rfid.tag.test.execute on page 93.)

Setvar

To instruct the printer which test to perform on the tag with the rfid.tag.test.execute command:

! U1 setvar "rfid.tag.test.content" "value"

Values

• quick = performs a read EPC test and a write EPC test (using random data)

•

read = performs a read EPC test

•

write = performs a write EPC test (using random data)

•

up = sets the command to the previous test

•

down = sets the command to the next test

SGD Commands for RFID

Default

Getvar

quick

To retrieve the current setting:

! U1 getvar "rfid.tag.test.content"

rfid.tag.test.execute

This command tests the data specified by the rfid.tag.test.content command. (See

rfid.tag.test.content on page 92.)

Setvar

To test the specified data:

! U1 setvar "rfid.tag.test.execute"

SGD Commands for RFID

rfid.tag.test.result_line1

This command reports the results of the rfid.tag.test.execute command.

Getvar

To retrieve the results of the rfid.tag.test.execute command:

! U1 setvar "rfid.tag.test.result_line1"

SGD Commands for RFID

rfid.tag.test.result_line2

This command reports the results of the rfid.tag.test.execute command.

Getvar

To retrieve the results of the rfid.tag.test.execute command:

! U1 setvar "rfid.tag.test.result_line2"

SGD Commands for RFID

www.zebra.com

ZEBRA RFID Programming Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Introduction to RFID

RFID Overview

Electronic Product Code (EPC)

EPC Fields

EPC Structure in RFID Labels

EPC Class 1, Generation 2 (Gen 2)

Data and Tag Security

Gen 2 Memory Map

Using RFID Features

Performing Firmware Updates

RFID Label Selection

Considering RFID Transponder Characteristics

Accounting for Transponder Inlay Position

Testing RFID Labels

Maximizing RFID Potential

Avoiding Radio Frequency Interference

Storing or Handling RFID Labels Correctly

Using the Correct RFID Settings

Setting the RFID Values Using Tag Calibration

Setting the RFID Values Manually

Restoring the Printer’s Default Programming Position

Locking RFID Tags

RFID Printer Configuration

Creating Basic RFID Label Formats

Create and Send an RFID Label Format

Sample RFID Label Formats

RFID Label Format 1—Encode a Gen 2 Tag in Hexadecimal

RFID Label Format 2—Encode a Gen 2 Tag in ASCII

RFID Label Format 3—Read Data from Tag and Print Data on Label

RFID Label Format 4—Encode Tag, Read Tag, and Print Data on Label

RFID Label Format 5—Encode Tag, Read Tag, and Return Results to Host

Troubleshooting

RFID Problems

RFID Error Codes and Messages

ZPL Commands for RFID

^HL or ~HL

Return RFID Data Log to Host

Calibrate RFID Tag Position

Host Verification

Define EPC Data Structure

Read or Write RFID Format

Lock/Unlock RFID Tag Memory

^RLM – Lock/Unlock the Specified Memory Bank

^RLB – Permanently Lock Specified Memory Sections

Reset Advanced Counters

Enable Adaptive Antenna Selection

Set Up RFID Parameters

Read Unique RFID Chip Serialization

Set RF Power Levels for Read and Write

SGD Commands for RFID

device.applicator.rfid_void

odometer.rfid.valid_resettable

odometer.rfid.void_resettable

rfid.adaptive_antenna

rfid.antenna_sweep

rfid.country_code

rfid.enable

rfid.error.response

rfid.hop_table_version

rfid.log.clear

rfid.log.enabled

rfid.log.entries

rfid.position.program

rfid.reader_1.antenna_port

rfid.reader_1.firmware_version

rfid.reader_1.hardware_version

rfid.reader_1.model

rfid.reader_1.power.read

rfid.reader_1.power.write

rfid.recipe_version

rfid.region_code

rfid.tag.calibrate

rfid.tag.data

rfid.tag.read.content

rfid.tag.read.execute