Omron V78068 Users Manual

Modbus/TCP Communications

This section provides an overview of Modbus/TCP communications and describes the communications format, communications commands, and communications procedure.

7-1 Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7-1-1 Modbus/TCP Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7-1-2 Modbus/TCP Function Codes Supported by the V780 . . . . . . . . . . . . . . . . . . 7-2

7-1-3 Communications System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7-2 Message Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

7-2-1 Command Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

7-2-2 Response Format for Normal Completion . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

7-2-3 Response Format for Error Completion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

7-2-4 Read Multiple Resisters Command/Response (FC03) . . . . . . . . . . . . . . . . . . 7-8

7-2-5 Write Multiple Resisters Command/Response (FC16) . . . . . . . . . . . . . . . . . . 7-8

7-2-6 Expanded Command/Response (FC100) . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

7-3 RF Communications Command Options . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

7-4 Communications Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11

7-4-1 Command Communications Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11

7-4-2 Error Response Reception Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

7-4-3 RF Tag Communications Command Procedure for Single-access

Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

7-4-4 RF Tag Communications Command Procedure for Multiaccess

Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14

7-5 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

7-6 V780 Command Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

7-6-1 Single-access Communications Commands . . . . . . . . . . . . . . . . . . . . . . . . 7-20

7-6-2 Multiaccess Communications Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32

7-6-3 Modbus Expansion Communications Commands . . . . . . . . . . . . . . . . . . . . 7-41

7-6-4 Reader/Writer Control Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-49

7-6-5 Reader/Writer Setting Commands: Network Settings . . . . . . . . . . . . . . . . . . 7-54

7-6-6 Reader/Writer Setting Commands: Communications Settings . . . . . . . . . . . 7-70

7-6-7 Reader/Writer Setting Commands: Device Settings . . . . . . . . . . . . . . . . . . . 7-98

7-6-8 Maintenance Commands: Device Information . . . . . . . . . . . . . . . . . . . . . . 7-102

7-6-9 Maintenance Commands: Log Information . . . . . . . . . . . . . . . . . . . . . . . . . .7-113

7-6-10 Maintenance Commands: RF Communications Information . . . . . . . . . . . 7-121

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 1

7 Modbus/TCP Communications

Additional Information

Host device

(client)

Reader/Writer

(server)

Ethernet Cable

TCP port number: 502

Command

Response

Power Supply Cable

7-1 Outline

7-1-1 Modbus/TCP Communications

• A V780 Reader/Writer can perform Modbus/TCP-compliant message communications with the host device (PLC).

• Communications between the host device (PLC) and the V780 Reader/Writer are performed on a client-server basis using the TCP/IP protocol. The computer, PLC, or other host device is the client and the Reader/Writer is the server.

• The message that the host device (PLC) sends to the Reader/Writer is called a command. The message that the Reader/Writer returns is called the response.

Modbus/TCP Protocol

The Modbus/TCP protocol is a communications protocol developed for PLCs by Modicon Inc.(AEG Schneider Automation International S.A.S.). It is an open standard and has been used for a variety of industrial devices.

A query in Modbus/TCP communications is called a command in this manual.

7-1-2 Modbus/TCP Function Codes Supported by the V780

The Modbus/TCP function codes that are supported by the V780 Reader/Writer are given in the following table.

Function code Description

These function codes comply with Modbus/TCP Class 0.

FC03 and FC16

(normal commands)

FC100

(expanded command)

The basic Modbus/TCP function codes are classified in Class 0.

Class 0 contains the following two functions: Read Multiple Resisters (FC03) and Write Multiple Registers (FC16).

These are called normal commands in this manual. This function code has a unique format that was defined by OMRON.

This function code is used to reduce command/response exchanges between the host device and Reader/Writer and give priority to the performance of communications with the host device.

This is called an expanded command in this manual.

7 - 2

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-1-3 Communications System

Host device

(client)

Reader/Writer

(server)

Ethernet Cable

FC03 or FC16

TCP port number: 502

Command

Response

Power Supply Cable

Modbus/TCP communications instructions Modbus/TCP Unit or other applicable Unit

There are two communications systems used by the V780 depending on the function codes that are used.

Modbus/TCP Communications System (FC03 and FC16)

The communications system that uses normal commands that are compliant with Modbus/TCP Class 0 is shown below.

Refer to 7-2 Message Formats on page 7-5 for details on the normal commands.

7 Modbus/TCP Communications

TCP/IP Socket Communications System (FC03, FC16, and FC100)

The expanded command that has a unique format defined by OMRON (FC100) cannot be sent with a Modbus/TCP Class 0-compliant protocol. The TCP/IP socket communications of the host device (PLC) are used instead.

Refer to 7-2 Message Formats on page 7-5 for details on the expanded communications commands.

Refer to 7-4 Communications Procedure on page 7-11 for information on creating a program for TCP/IP communications.

Socket communications instructions Ethernet Unit or other applicable Unit

Host device

(client)

FC03, FC16, or FC100

Ethernet Cable

Command

Reader/Writer

(server)

Power Supply Cable

TCP port number: 502

7-1 Outline

7-1-3 Communications System

Response

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 3

7 Modbus/TCP Communications

Precautions for Correct Use

Communications Units and communications commands that support the Modbus/TCP protocol support only function codes that comply with Modbus/TCP Class 0. Therefore, the function code FC100 for expanded commands cannot be used.

IP Address Settings of the Reader/Writer

You can set any IP address for the V780 Reader/Writer.

For details, refer to 7-6-5 Reader/Writer Setting Commands: Network Settings on page 7-54 or Setting the IP Address of the Reader/Writer from a Web Browser on page 5-4.

Port Numbers Used for Modbus/TCP Communications

Normally, port number 502 (01F6 hex) is used for Modbus/TCP communications.

With the V780 Reader/Writer, you can change the port number to between 1,024 and 65,535 (0400 hex and FFFF hex).

For details, refer to ?8-2-3 ???????? (P.8-5)?.

7 - 4

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

7-2 Message Formats

7-2-1 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 … Byte-n

Transaction iden-

tifier

XXXX hex Always 0000 hex. XXXX hex

X: Any value, n: 4,351 max.

Protocol identifier Field length

Unit

identifier

Always

FF hex.

Command frame length

Func-

tion

code

03 hex, 10 hex,

or 64

hex

Range included in the field length.

Data

XX...XX hex

Transaction Identifier

This value is used to identify the message sent by the host device.

The transaction identifier in the response from the Reader/Writer will be a copy of the value that is specified here.

Protocol Identifier

This field is always 0000 hex.

Field Length

Specify the number of bytes inclusively from the unit identifier through the end of the data.

If the function code is FC03 or FC16, the maximum field length is 250 bytes.

If the function code is FC100, the maximum field length is 4,346 bytes.

Unit Identifier

This field is always FF hex.

7-2 Message Formats

7-2-1 Command Format

Function Code

The function code indicates the command to request execution from the Reader/Writer.

Function code Function Remarks

FC03 (03 hex) Read Holding Register Modbus/TCP Class 0 compliant FC16 (10 hex) Write Holding Register

FC100 (64 hex) Reader/Writer command

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

This function code is used for commands with a unique manufacturer definition that gives priority to the performance of communications with the host device.

7 - 5

7 Modbus/TCP Communications

Range included in the field length.

Data

Specify the data that is relevant to the function code.

The format of the data depends on the function code.

7-2-2 Response Format for Normal Completion

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 … Byte-n

Transaction iden-

tifier

XXXX hex Always 0000 hex. XXXX hex

X: Any value, n: 9,215 max.

Protocol identifier Field length

Unit

identifier

Always

FF hex.

Func-

tion

code

03 hex, 10 hex,

or 64

hex

Data

XX...XX hex

Transaction Identifier

The value that was specified in the command is set.

Protocol Identifier

This field is always 0000 hex.

Field Length

The number of bytes inclusively from the unit identifier through the end of the data is set.

Unit Identifier

This field is always FF hex.

Function Code

The value of the function code that was specified in the command is set.

Data

The data that is relevant to the function code is set.

The format of the data depends on the function code.

7 - 6

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

7-2-3 Response Format for Error Completion

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length

XXXX hex Always 0000 hex. Always 0003 hex.

X: Any value

Unit identi-

fier

Always FF

hex.

Range included in the field length.

Function

code

83 hex, 90 hex, or E4

hex

Transaction Identifier

The value that was specified in the command is set.

Protocol Identifier

Exception

code

XX hex

This field is always 0000 hex.

7-2 Message Formats

Field Length

This field is always 0003 hex.

Unit Identifier

This field is always FF hex.

7-2-3 Response Format for Error Completion

Function Code

The value of the function code that was specified in the command plus 80 hex is set.

Exception Code

A code that provides information on the error is set.

You can use the error code to identify the error that was detected by the Reader/Writer. The exception code and error code are related as given below. Refer to the most recent command error information or command error log to check details on the error using the error code.

Exception

code

01 hex Illegal function

02 hex Illegal data address 1004 hex Command format error 03 hex Illegal data value 1005 hex Command parameter error

04 hex Failure in slave device

06 hex Slave device busy 1011 hex Command execution failure, busy

Exception code meaning V780 error code

1001 hex Frame length error 1002 hex Frame header error 1003 hex Unknown command error

2*** hex RF Tag communications error 1018 hex Command execution failure, minor fault 101F hex Command execution failure, major fault

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 7

7 Modbus/TCP Communications

7-2-4 Read Multiple Resisters Command/Response (FC03)

Command Format

Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Function code Register address Word count

03 hex XXXX hex

0001 to 0078 hex

(1 to 120)

Normal Response Format

Byte-7 Byte-8 Byte-9 … Byte-n

Function code Byte count Read holding register data

03 hex XX hex XX...XX hex

7-2-5 Write Multiple Resisters Command/Response (FC16)

Command Format

Byte-7 Byte-8 Byte-9 Byte-10 Byte-11 Byte-12 Byte-13 … Byte-n

Function code Register address Word count Byte count Write holding register data

10 hex XXXX hex

0001 to 0078 hex

(1 to 120)

Word count x 2 XX...XX hex

Normal Response Format

Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Function code Register address Word count

10 hex XXXX hex

0001 to 0078 hex

(1 to 120)

7-2-6 Expanded Command/Response (FC100)

Command Format

7 - 8

Byte-7 Byte-8 Byte-9 Byte-10 … Byte-n

Function code Subfunction code Expanded command parameters

64 hex XXXX hex XX...XX hex

Normal Response Format

Byte-7 Byte-8 Byte-9 Byte-10 … Byte-n

Function code Subfunction code Expanded response data

64 hex XXXX hex XX...XX hex

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

7-3 RF Communications Command

Options

This section describes the options that you can use together with RF communications commands (multiaccess or Modbus expansion). You can specify options to get the EPC of the RF Tag, the reception level, or other communications information together with the normal data for the command.

For commands with the multiaccess specification, the communications information specified with the option is returned in the response for the command that gets the execution results, i.e., the two commands are used together.

For commands with the Modbus expansion, the communications information specified with the option is returned as an attachment to the response.

Options

7-3 RF Communications Command Options

 Options

Item Relevant bit Description Information size

EPC Bit 0 The StoredPC and EPC code are attached. 32 words Reception

level

Reserved 1 Bits 2 to 3 • These bits are reserved. --Diagnostic result

Reserved 2 Bits 5 to 15 • These bits are reserved. ---

Option Specification Examples:

Specify 0001 hex to have the EPC attached.

Specify 0003 hex to have the EPC and reception level attached.

Specify 0011 hex to have the EPC and diagnostic results attached.

Bit 1 The reception level (signed hexadecimal) is attached.

FFFF to FF9D hex (-1 to -99 [dBm])

• A value of 0 will be set if processing ended in an error.

Bit 4 The diagnostic results (4-digit hexadecimal) are attached.

If communications diagnostics are disabled, 0000 hex is attached.

For details, refer to Response Formats on page 7-125 under GET COMMUNICATIONS DIAGNOSTIC INFORMATION on page 7-125.

1 word

 Options Supported by RF Communications Commands

OK: Option can be specified, No: Option cannot be specified. (A parameter error will occur if it is.)

---: Reserved (Always specify 0 for these unused bits.)

Classification Command

Communications command, multiaccess

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

SET MULTIACCESS ID READ --- No --- OK No SET MULTIACCESS DATA READ --- No --- OK OK

Reserved

Bits 5 to

Diag-

nostic

results

Bit 4

Options

Reserved RSSI EPC

Bits 2 and 3

Bit 1 Bit 0

7 - 9

7 Modbus/TCP Communications

Classification Command

Communications command, Modbus expansion

EXTENDED DATA READ --- OK --- OK OK EXTENDED DATA WRITE --- OK --- OK OK EXTENDED MULTIACCESS ID

READ EXTENDED MULTIACCESS DATA READ

Options

Diag-

Reserved

Bits 5 to

--- No --- OK No

--- No --- OK OK

nostic

results

Bit 4

Reserved RSSI EPC

Bits 2 and 3

Bit 1 Bit 0

7 - 10

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

Host device

(client)

Reader/Writer

(server)

Connection requested.

Connection request acknowledged.

Disconnection requested.

Disconnection request acknowledged.

Command sent.

Response returned.

Command

execution

7-4 Communications Procedure

In the computer, PLC, or other host devices, write the program to communicate with the Reader/Writer using TCP sockets.

If you use an Modbus/TCP master device, follow the communications procedure for the device you are using.

7-4-1 Command Communications Procedure

A connection is required between the host device and Reader/Writer to communicate with the Reader/Writer. After you establish a connection, send commands and receive the responses.

1 Connection Processing: Opening a Socket

Send a request for a connection from the host device to the Reader/Writer and establish a TCP connection. Monitor for connection timeouts as required.

2 Command Send Processing: Sending Socket Data

Send the command from the host device to the Reader/Writer in a message.

Monitor for send timeouts as required.

7-4 Communications Procedure

3 Response Reception Processing: Receiving Socket Data

At the host device, wait to receive the message from the host device and receive the response.

Monitor for reception timeouts as required.

4 Disconnection Processing: Closing the Socket

Send a request for a disconnection from the host device to the Reader/Writer and disconnect the TCP connection. Monitor for disconnection timeouts as required.

7-4-1 Command Communications Procedure

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 11

7 Modbus/TCP Communications

Precautions for Correct Use

Error

occurs.

Error

detected.

Host device

(client)

Reader/Writer

(server)

Command

execution

GET MOST RECENT ERROR

INFORMATION command sent.

(Or, GET COMMAND ERROR LOG command sent.)

Error information returned.

Command sent.

Response returned.

Function code + 80 hex

Access to a Reader/Writer is possible from only one host device at a time.

If a host device B connects to a Reader/Writer while another host device A is already connected to it, the connection between host device A and the Reader/Writer will be automatically disconnected and a connection with host device B will be established.

7-4-2 Error Response Reception Procedure

If an error response is received, you can check the most recent command error information or command error log in the Reader/Writer to get details on the nature of the error. An error has occurred if the function code in the response that was returned from the Reader/Writer is 80 hex higher than the function code in the query.

You can do this by sending a GET MOST RECENT ERROR INFORMATION command or GET COMMAND ERROR LOG command from the host device or by using the Web browser interface through the Web server.

7 - 12

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

Host device

(client)

Reader/Writer

(server)

RF Tag A

Command

execution

Command

execution

READ DATA communications

command sent.

Communications field

RF Tag memory

read/written.

RF Tag memory

read/written.

WRITE DATA communications

command sent.

Read data (120 words max.)

Data to write (120 words max.)

Response returned.

Host device

(client)

Reader/Writer

(server)

Command

execution

READ DATA communications

command sent.

Communications field

GET MOST RECENT ERROR INFORMATION

command sent.

Exception code: Failure in slave device

Error code: RF Tag missing error

Response returned.

Timeout (TMO)

Error information returned.

7-4-3 RF Tag Communications Command Procedure for Single-access

Communications

When you send an RF Tag communications command with single-access communications, the Reader/Writer communicates with only one RF Tag in the communications field.

Using a Normal Command (FC03 or FC16)

With a normal command, the maximum size of data that you can read from an RF Tag is 120 words. To read more data than that, you must use more than one READ DATA or WRITE DATA command, or use an expanded command.

7-4 Communications Procedure

If communications with an RF Tag are not possible, a “failure in slave device” exception code (04 hex) is returned in an error response. Following the error response reception procedure.

7-4-3 RF Tag Communications Command Procedure for Single-access Communica-

tions

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 13

7 Modbus/TCP Communications

Host device

(client)

Reader/Writer

(server)

RF Tag A

Command

execution

READ DATA communications

command sent.

Communications field

RF Tag memory

read/written.

GET RF TAG ADDITIONAL

INFORMATION command sent.

Reception level

Response returned.

Host device

(client)

Reader/Writer

(server)

RF Tag A

Command

execution

EXPANDED DATA READ

communications command sent.

Communications field

RF Tag memory

read/written.

Error code

+ EPC code

+ Reception level

Read data (2,048 words max.)

Response returned

(2,048 words max.)

If you want to check the EPC code or reception level when communications with the RF Tag are successful, send a GET RF TAG ADDITIONAL INFORMATION command after the response to the communications command has been received. The reception level from the RF Tag that was just communicated with will be returned.

Using an Expanded Command (FC100)

With an expanded command, the maximum size of data that you can read from an RF Tag is 2,048 words.

If an error occurs in the RF Tag communications, the error code is returned with the response. No additional command is required to check the error code.

You can also specify a command option to have the EPC code or reception level returned with the other data.

7-4-4 RF Tag Communications Command Procedure for Multiaccess

Communications

When you send an RF Tag communications command with multiaccess communications, the Reader/Writer communicates with more than one RF Tag in the communications field.

The Reader/Writer will communicate with all of the RF Tags in the communications field within the communications timeout time (64 max.) and then return a response.

7 - 14

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

Host device

(client)

Reader/Writer

(server)

RF Tag A

RF Tag B

RF Tag C

SET MULTIACCESS DATA READ

communications command sent.

GET MULTIACCESS DATA READ RESULTS communications command sent.

Communications field

RF Tag memory

read/written.

Error code Read data

Number of RF Tags: 3

EPC code

+ Reception level

Error code Read data

Number of RF Tags: 2

EPC code

+ Reception level

Response returned.

GET MULTIACCESS DATA READ RESULTS communications command sent.

Error code Read data

Number of RF Tags: 1

EPC code

+ Reception level

Response returned.

Command execution

Timeout (TMO)

RF Tag A communications results

RF Tag B communications results

RF Tag C communications results

Using a Normal Command (FC03 or FC16)

With a normal multiaccess RF Tag command, two commands are used to exchange the data, one to set communications and another to get the results.

1 Sending the Command to Set Communications

First, send the command to set communications.

If the Reader/Writer detects even one RF Tag, the results of execution are returned as a normal response.

If no RF Tags were detected, an RF Tag missing error is returned.

2 Sending the Command to Get the Results

Send the command to get the results.

When you execute the command to get the results, the results of communications with the first RF Tag that was detected will be returned. The communications results will contain the number of RF Tags detected, the error code, and, for READ DATA, the EPC code.

If the option is specified, the reception level information is also attached.

7-4 Communications Procedure

3 Repeatedly Getting the Results

Execute the command to get the results once for every RF Tag that was detected.

The number of RF Tags that was detected by the Reader/Writer is included in the response to the command to get the results. Repeatedly send the command until the number of RF Tags in the response is 1.

7-4-4 RF Tag Communications Command Procedure for Multiaccess Communica-

tions

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 15

7 Modbus/TCP Communications

Precautions for Correct Use

Host device

(client)

Reader/Writer

(server)

RF Tag A

RF Tag B

RF Tag C

SET MULTIACCESS DATA READ

communications command sent.

Communications field

RF Tag memory

read/written.

Error code Read data

Number of RF Tags: 3

EPC code

+ RSSI level

Error code Read dataEPC code

+ RSSI level

Response returned.

Error code Read dataEPC code

+ RSSI level

Command execution

Timeout

(TMO)

RF Tag A communications results

RF Tag B communications results

RF Tag C communications results

If you execute another communications command (e.g., a single-access read, write, or fill command or a multiaccess read command) before you execute the commands to get the results, the multiaccess communications results held in the Reader/Writer will be cleared.

Using an Expanded Command (FC100)

With an expanded command, you can execute one multiaccess RF Tag command to get the communications results from more than one RF Tag with only one command.

7 - 16

The normal MULTIACCESS DATA READ and MULTIACCESS ID READ communications commands are designed for applications that read two to five RF Tags at one time. If your application requires reading more RF Tags than that, we recommend that you use an expanded command.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-5 Commands

The commands that you can send to a Reader/Writer are listed below.

The command codes are used to identify the commands and they are recorded in the most recent command error information and command error log with an error response is returned. (This information is not included in the Modbus/TCP message format.)

Single-access Communications Commands

Command name Function code Register address Command code

READ ID FC03 4000 hex 0001 hex WRITE ID FC16 4000 hex 0002 hex READ DATA FC03 0000 to 07FF hex

WRITE DATA FC16 0000 to 07FF hex

LOCK FC16 8000 hex 0005 hex DATA FILL FC16 8100H hex 0006 hex

7 Modbus/TCP Communications

0003 hex

1000 to 17FF hex

2000 to 27FF hex

3000 to 3FFF hex

1000 to 17FF hex

2000 to 27FF hex

3000 to 3FFF hex

0004 hex

7-5 Commands

Multiaccess Communications Commands

Command name Function code Register address Command code

SET MULTIACCESS ID READ FC16 Always 9000 hex. 0101 hex GET MULTIACCESS ID READ

RESULTS SET MULTIACCESS DATA READ FC16 Always 9200 hex. 0103 hex GET MULTIACCESS DATA READ RESULTS

FC03 Always 9100 hex. 0102 hex

FC03 Always 9300 hex. 0104 hex

Modbus Expansion Communications Commands

Command name Function code Subfunction code Command code

EXTENDED DATA READ FC100 0001 hex 0201 hex EXTENDED DATA WRITE FC100 0002 hex 0202 hex EXTENDED MULTIACCESS ID READ FC100 0003 hex 0203 hex EXTENDED MULTIACCESS DATA

READ

FC100 0004 hex 0204 hex

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 17

7 Modbus/TCP Communications

Reader/Writer Control Commands

Command name Function code Register address Command code

INITIALIZE FC16 A000 hex 1001 hex RESET FC16 A100 hex 1002 hex STOP FC16 A200 hex 1003 hex RESET FOCUS FC16 A300 hex 1004 hex

Reader/Writer Setting Commands: Network Settings

Command name Function code Register address Command code

SET TCP/IP COMMUNICATIONS CONDITIONS

GET TCP/IP COMMUNICATIONS CONDITIONS

SET DEVICE NAME FC16 B100 hex 2003 hex GET DEVICE NAME FC03 B100 hex 2004 hex SET MODBUS/TCP COMMUNICATIONS CONDITIONS GET MODBUS/TCP COMMUNICATIONS CONDITIONS SET WEB COMMUNICATIONS CONDITIONS GET WEB COMMUNICATIONS CONDITIONS SET WEB PASSWORD FC16 B400 hex 2009 hex GET WEB PASSWORD FC03 B400 hex 200A hex

FC16 B000 hex 2001 hex

FC03 B000H hex 2002 hex

FC16 B200 hex 2005 hex

FC03 B200 hex 2006 hex

FC16 B300 hex 2007 hex

FC03 B300 hex 2008 hex

Reader/Writer Setting Commands: Device Settings

Command name Function code Register address Command code

SET OPERATION INDICATOR CUSTOM CONDITIONS GET OPERATION INDICATOR CUSTOM CONDITIONS

FC16 B800 hex 5001 hex

FC03 B800 hex 5002 hex

Reader/Writer Setting Commands: Communications Settings

Command name Function code Register address Command code

SET TAG COMMUNICATIONS CONDITIONS

GET TAG COMMUNICATIONS CONDITIONS

SET TRANSMISSION POWER FC16 C100 hex 3003 hex GET TRANSMISSION POWER FC03 C100 hex 3004 hex SET CHANNEL FC16 C200 hex 3005 hex GET CHANNEL FC03 C200 hex 3006 hex SET GEN2 SESSION FC16 C300 hex 3007 hex

FC16 C000 hex 3001 hex

FC03 C000 hex 3002 hex

7 - 18

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

Command name Function code Register address Command code

GET GEN2 SESSION FC03 C300 hex 3008 hex SET ACCESS PASSWORD FC16 C400 hex 3009 hex GET ACCESS PASSWORD FC03 C400 hex 300A hex SET RF TAG SELECTION FILTER

FC16 C500 hex 300B hex

CONDITIONS GET RF TAG SELECTION FILTER

FC03 C500 hex 300C hex CONDITIONS SET RSSI FILTER CONDITIONS FC16 C600 hex 300D hex

GET RSSI FILTER CONDITIONS FC03 C600 hex 300E hex SET TRANSMISSION TIME FC16 C700 hex 300F hex GET TRANSMISSION TIME FC03 C700 hex 3010 hex

Maintenance Commands: Device Information

Command name Function code Register address Command code

GET MODEL INFORMATION FC03 D000 hex 4001 hex GET FIRMWARE VERSION FC03 D100 hex 4002 hex GET MAC ADDRESS FC03 D200 hex 4003 hex GET OPERATING STATUS FC03 D300 hex 4004 hex GET TIME INFORMATION FC03 D400 hex 4005 hex SET TIME INFORMATION FC16 D400 hex 4006 hex

7-5 Commands

Maintenance Commands: Log Information

Command name Function code Register address Command code

GET SYSTEM ERROR LOG FC03 D600 hex 4101 hex

CLEAR SYSTEM ERROR LOG FC16 D700 hex 4102 hex GET COMMAND ERROR LOG FC03 D800 hex 4103 hex GET MOST RECENT COMMAND

FC03 D900 hex 4104 hex

7-4-4 RF Tag Communications Command Procedure for Multiaccess Communica-

tions

ERROR INFORMATION

Maintenance Commands: RF Communications Information

Command name Function code Register address Command code

GET RF TAG ADDITIONAL INFORMATION

GET NOISE LEVEL FC03 DB00 hex 4202 hex GET COMMUNICATIONS DIAG-

NOSTIC INFORMATION

FC03 DA00 hex 4201 hex

FC03 DC00 hex 4203 hex

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 19

7 Modbus/TCP Communications

Additional Information

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

READ ID

 Function

This command reads the ID (i.e., the EPC code) of the RF Tag in the communications field.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex 4000 hex 0020 hex

Protocol identifier Field length Unit

identifier

Function

code

Parameter Description

Register address The register address (4000 hex) that specifies reading the ID Word count The number of words in the read StoredPC and EPC code (always 0020 hex).

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

X X 0000 hex 0043 hex FF hex 03 hex 40 hex 2 bytes

Byte-11 … Byte-72

EPC code

62 bytes

Parameter Description

StoredPC Gives the StoredPD data in 4-digit hexadecimal.

EPC code Gives the Tag-specific information according to Gen2 standards.

Protocol identifier Field length Unit

identifier

The upper 5 bits are the EPC word length. (Refer to StoredPC Bit Format on page 20, below.)

All bytes of the EPC code section that exceed the EPC word length in the StoredPC are filled with 00 hex.

Function

code

Byte

count

StoredPC

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

7 - 20

• StoredPC Bit Format

10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F

PC + EPC length

16 x (n + 1)

RFU 0:EPS

1:AFI

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Data

7 Modbus/TCP Communications

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Protocol identifier Field length Unit

identifier

Completion on page 7-7.

Function

code

Excep-

tion

code

 Execution Examples

Reading the ID Data from the RF Tagt

Example 1: Execution When an RF Tag Is in the Communications Field (StoredPC: 3000 hex, EPC code: 111122223333444455556666 hex)

TX: 000000000006FF0340000020

RX: 000000000043FF0340300011112222333344445555666600…00

7-6 V780 Command Details

* Words 7 through 31 of the EPC code section (i.e., the words past the EPC length of 6 words) are

filled with zeros.

Example 2: Execution When an RF Tag Is Not in the Communications Field (Exception Code: 04 Hex (Failure in Device))

TX: 000000000006FF0340000020

RX: 000000000003FF8304

7-6-1 Single-access Communications Commands

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 21

7 Modbus/TCP Communications

WRITE ID

 Function

This command writes the ID (i.e., the EPC code) to the RF Tag in the communications field.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 2 bytes FF hex 10 hex 4000 hex 2 bytes

Byte-12 Byte-13 Byte-14 Byte-15 … Byte-n

Byte

count

1 byte 2 bytes 0 to 62 bytes

Protocol identifier Field length Unit

EPC length EPC code

identifier

Function

code

Parameter Description

Field length Setting range: 0015 to 0047 hex Register address The register address (4000 hex) that specifies reading or writing the ID Word count Setting range: 0001 to 0020 hex Byte count Setting range: 02 to 40 hex EPC length Gives the word size of the EPC code in 4-digit hexadecimal.

0000 to 001F hex (0 to 32)

EPC code Gives the Tag-specific information according to Gen2 standards.

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex 2 bytes 2 bytes

Parameter Description

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

Protocol identifier Field length Unit

identifier

Function

code

7 - 22

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Protocol identifier Field length Unit

identifier

Completion on page 7-7.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

Excep-

tion

code

7 Modbus/TCP Communications

 Execution Examples

Writing the ID Data to an RF Tag (EPC Length: 0006 Hex, EPC Code: 111122223333444455556666 Hex)

TX: 000000000015FF10400000070E0006111122223333444455556666

RX: 000000000006FF1040000007

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 23

7 Modbus/TCP Communications

READ DATA

 Function

This command reads data from the RF Tag in the communications field.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex 2 bytes 2 bytes

Parameter Description

Word count Specify in 4-digit hexadecimal the number of words of data to read.

Protocol identifier Field length Unit

Setting ranges (word address specifications)

0000 to 07FF hex: Reserved area

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Setting range: 0001 to 0078 hex (1 to 120)

identifier

Function

code

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 … Byte-n

Transaction identi-

fier

X X 0000 hex 00 hex 1 byte FF hex 03 hex 1 byte 2 to 240 bytes

Parameter Description

Byte count Contains the number of bytes of data that were read from the RF Tag in 2-digit hexa-

Read data The data that was read from the RF Tag is attached.

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Protocol identifier Field length Unit

identifier

decimal. (02 to F0 hex)

Protocol identifier Field length Unit iden-

tifier

Completion on page 7-7.

Function

code

Function

code

Byte

count

Excep-

tion code

Read data

7 - 24

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

 Execution Examples

Reading Four Words of Data (1111222233334444 Hex) Starting from Word Address 0123 Hex (User Area) in the RF Tag

TX: 000000000006FF0331230004

RX: 000000000013FF03081111222233334444

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 25

7 Modbus/TCP Communications

WRITE DATA

 Function

This command writes data to the RF Tag in the communications field.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9

Transaction identi-

fier

X X 0000 hex 2 bytes FF hex 10 hex 2 bytes 2 bytes

Byte-12 Byte-13 … Byte-n

Byte

count

1 byte 1 to 120 words

Protocol identifier Field length Unit

identifier

Data to write

Function

code

Byte-1

Parameter Description

Field length Setting range: 0009 to 00F7 hex (9 to 247) Register address Specify in 4-digit hexadecimal the start address for writing data in the RF Tag.

Setting ranges (word address specifications)

0000 to 07FF hex: Reserved area

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Word count Specify in 4-digit hexadecimal the number of words of data to write.

Setting range: 0001 to 0078 hex (120 words max.)

Byte count Specify in 4-digit hexadecimal the number of bytes of data to write.

Setting range: 02 to F0 hex (240 bytes max.)

Data to write Specify the data to write to RF Tag.

Between 1 and 120 words of data can be written with one command.

Byte-11

7 - 26

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex 2 bytes 2 bytes

Parameter Description

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Protocol identifier Field length Unit

identifier

Protocol identifier Field length Unit

identifier

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

Function

code

Excep-

tion code

7 Modbus/TCP Communications

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

 Execution Examples

Writing Four Words of Data (1111222233334444 Hex) Starting from Word Address 0123 Hex (User Area) in the RF Tag

TX: 00000000000FFF1031230004081111222233334444

RX: 000000000006FF1031230004

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 27

7 Modbus/TCP Communications

LOCK

 Function

This command locks or unlocks the memory of the RF Tag in the communications field.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 000F hex FF hex 10 hex 8000F hex 0004 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 … Byte-20

Byte

count

08 hex 2 bytes 2 bytes 4 bytes

Protocol identifier Field length Unit

Lock operation Area to lock/unlock Password

identifier

Function

code

Parameter Description

Lock operation Specify locking or unlocking.

0000 hex: Unlock 0001 hex: Lock

• If you specify locking the EPC, TID, or user area, you will no longer be able to write data to that area.

• If you specify locking the access password, you will no longer be able to read the access password area.

• When you unlock an area, specify all of the areas that have been locked.

Area to lock/unlock

Specify one or more of the EPC, TID, and user areas.

EPC area: 0001 hex

TID area: 0002 hex

User area: 0004 hex

Access password: 0008 hex

• If all zeros is specified, a command parameter error will occur.

Password Specify the access password to set in the Tag in 8-digit hexadecimal (32 bits) (00000000 hex).

Locking: The access password to set in the RF Tag to lock.

Unlocking: The access password in the RF Tag to unlock.

Note 1. When an area is locked, the specified password is written to the access password area in the RF Tag.

2. If an address error, lock error, or RF Tag system error occurs when locking an area, the access password area in the RF Tag will be cleared to all zeros.

3. When an RF Tag is unlocked, the access password area in the RF Tag will be cleared to all zeros.

7 - 28

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex 2 bytes 2 bytes

Parameter Description

Protocol identifier Field length Unit

identifier

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

7 Modbus/TCP Communications

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Protocol identifier Field length Unit

identifier

Completion on page 7-7.

Function

code

Excep-

tion code

 Execution Examples

Example 1: Locking the User Area of the RF Tag with a Password of 12345678 Hex

TX: 00000000000FFF1080000004080001000412345678

RX: 000000000006FF1080000004

7-6 V780 Command Details

Example 2: Unlocking the User Area

TX: 00000000000FFF1080000004080000000412345678

RX: 000000000006FF1080000004

7-6-1 Single-access Communications Commands

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 29

7 Modbus/TCP Communications

DATA FILL

 Function

This command writes the specified data to the specified number of words beginning from the specified write start address. The specifications are made in the command.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 000D hex FF hex 10 hex 8100 hex 0003 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18

Byte

count

06 hex 2 bytes 2 bytes 2 bytes

Protocol identifier Field length Unit

Fill address Number of fill

Fill information

words

identifier

Fill data

Function

code

Parameter Description

Register address The register address (8100 hex) that specifies filling data Word count Number of words of fill information (0003 hex) Byte count Number of bytes of fill information (06 hex) Fill information Fill address Specify in 4-digit hexadecimal the start address for writing data in the RF

Ta g.

0000 to 07FF hex: Reserved area

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Number of fill words

Specify in 4-digit hexadecimal the number of words of data to fill.

Setting range: 0000 hex or 0001 to 0800 hex

• If 0000 hex is specified for the number of fill words, the entire memory area will be filled.

• You cannot write data to more than one area with the same command.

Fill data Specify in 4-digit hexadecimal the data to write to the RF Tag.

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex 2 bytes 0003 hex

Protocol identifier Field length Unit

identifier

Function

code

7 - 30

Parameter Description

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Protocol identifier Field length Unit

identifier

Completion on page 7-7.

Function

code

Excep-

tion code

 Execution Examples

Example 1: Writing 5A5A Hex to Four Words Starting from Word Address 0100 Hex (User Area) in the RF Tag

TX: 00000000000DFF108100000306310000045A5A

RX: 000000000006FF1081000003

Example 2: Writing 5A5A Hex to the Entire User Area in the RF Tag

TX: 00000000000DFF108100000306300000005A5A

RX: 000000000006FF1081000003

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 31

7 Modbus/TCP Communications

7-6-2 Multiaccess Communications Commands

SET MULTIACCESS ID READ

 Function

This command specifies reading the IDs (i.e., the ECP codes) of the RF Tags in the communications field.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0009 hex FF hex 10 hex 9000F hex 0001 hex

Protocol identifier Field length Unit

identifier

Function

code

Byte-12 Byte-13 Byte-14

Byte

count

02 hex 2 bytes

Options

Parameter Description

Register address The register address (9000 hex) that specifies setting multiaccess ID reading Word count The number of words for the option (0001 hex) Byte count The number of option bytes (02 hex) Options For details, refer to 7-3 RF Communications Command Options on page 7-9.

Options are implemented in a normal response to the GET MULTIACCESS ID READ RESULTS on page 7-33.

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9

Transaction identi-

fier

X X 0000 hex 0004 hex FF hex 10 hex 0001 hex

Parameter Description

Word count Always 0001 hex.

Protocol identifier Field length Unit

identifier

Function

code

Word count

7 - 32

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Protocol identifier Field length Unit

identifier

Completion on page 7-7.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

Excep-

tion code

7 Modbus/TCP Communications

 Execution Examples

Specifying Multiaccess Reading of the IDs by the Reader/Writer with No Options

Example 1: Execution when an RF Tag Is in the Communications Field

TX: 000000000009FF1090000001020000

RX: 000000000004FF100001

Example 2: Execution When an RF Tag Is Not in the Communications Field (Exception Code: 04 Hex (Failure in Device))

TX: 000000000009FF1090000001020000

RX: 000000000003FF9004

GET MULTIACCESS ID READ RESULTS

 Function

This command reads data from the RF Tag in the communications field.

You can specify reading up to 2,048 words with one GET MULTIACCESS ID READ RESULTS command.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex 9100F hex 2 bytes

Parameter Description

Word count 0022 hex + Option size

Protocol identifier Field length Unit

identifier

reading

• For details on option sizes, refer to 7-3 RF Communications Command Options on page 7-9.

Function

code

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

X X 0000 hex 2 bytes FF hex 03 hex 1 byte 2 bytes

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Number of RF

7-6-3 Modbus Expansion Communications Commands

StoredPC EPC code Reception level Diagnostic results

2 bytes 62 bytes 2 bytes 2 bytes

Note The contents depend on the options specified in the command.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 41

7 Modbus/TCP Communications

Parameter Description

Field length 0008 to 1006 hex + Option size

Read data The data that was read from the RF Tag is attached. (Range: 0001 to

Options These parameters may be omitted depending on the option value.

StoredPC Gives the StoredPC data in 4-digit hexadecimal.

EPC code Gives the Tag-specific information according to Gen2 standards.

Reception level The reception level is attached in signed 4-digit hexadecimal.

Diagnostic results

• For details on option sizes, refer to 7-3 RF Communications Command Options on page 7-9.

0800 hex, in words)

The upper 5 bits are the EPC word length.

All bytes of the EPC code section that exceed the EPC word length in the StoredPC are filled with 00 hex.

FFFF to FF9D hex (-1 to -99 [dBm]) Gives the diagnostic results in 4-digit hexadecimal.

For details, refer to Response Formats on page 7-125 under NTLPxREF Communications Diagnostic Information.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction iden-

tifier

X X 0000 hex 0006 hex FF hex 64 hex 0001 hex 2 bytes

Protocol identifier Field length Unit

identifier

Func-

tion

code

Subfunction code Error code

Parameter Description

Error code For details, refer to ?9-2-1 ?????? (P.9-3)?.

• Error Response: Command Error

• Error Response: RF Tag Communications Error

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex E5 hex 1 byte

Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

 Execution Examples

7 - 42

Reading 2,048 Words of Data Starting from Word Address 0000 Hex (User Area) in the RF Tag with No Options

Example 1: Execution When an RF Tag Is Not in the Communications Field (Read Data: 1111222233334444…FFFF Hex)

TX: 00000000000AFF640001300008000000

RX: 000000000806FF64000100001111222233334444…FFFF

Example 2: Execution When an RF Tag Is Not in the Communications Field (Error Code: 2001 Hex (RF Tag Missing Error))

TX: 00000000000AFF640001300008000000

RX: 000000000006FF6400012001

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

EXTENDED DATA WRITE

 Function

This command writes data to the RF Tag in the communications field.

You can specify writing up to 2,048 words with one EXTENDED DATA WRITE command.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 000C to 100A hex FF hex 64 hex 0002 hex 2 bytes

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Write area start

address

Byte-12 Byte-13 Byte-14 ...

Write size Data to write Options

2 bytes 1 to 2,048 words (2 to 4,096

bytes)

Byte-n

+ n

2 bytes

Parameter Description

Field length Setting range: 000C to 100A hex Subfunction code 0002 hex: EXTENDED DATA WRITE Write area start address Specify in 4-digit hexadecimal the start address for writing data in the RF Tag.

Setting ranges (word address specifications)

0000 to 07FF hex: Reserved area

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Write size Specify in 4-digit hexadecimal the number of words of data to write.

Setting range: 0001 to 0800 hex (2,048 words max.) Data to write The data to write Options For details, refer to 7-3 RF Communications Command Options on page 7-9.

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 2 bytes FF hex 64 hex 0002 hex 0000 hex

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Error code

7-6 V780 Command Details

7-6-3 Modbus Expansion Communications Commands

Byte-12 ... ... ... ... ... ... Byte-n

Options

0 to 68 bytes

StoredPC EPC code Reception level Diagnostic results

2 bytes 62 bytes 2 bytes 2 bytes

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 43

7 Modbus/TCP Communications

Parameter Description

Field length Normal completion: 0006 hex + Option size

Error code For details, refer to ?9-2-1 ?????? (P.9-3)?. Options These parameters may be omitted depending on the option value.

StoredPC Gives the StoredPC data in 4-digit hexadecimal.

EPC code Gives the Tag-specific information according to Gen2 standards.

Reception level The reception level is attached in signed 4-digit hexadecimal.

Diagnostic results

• For details on option sizes, refer to 7-3 RF Communications Command Options on page 7-9.

The upper 5 bits are the EPC word length.

All bytes of the EPC code section that exceed the EPC word length in the StoredPC are filled with 00 hex.

FFFF to FF9D hex (-1 to -99 [dBm]) Gives the diagnostic results in 4-digit hexadecimal.

For details, refer to Response Formats on page 7-125 under NTLPxREF Communications Diagnostic Information.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction iden-

tifier

X X 0000 hex 0006 hex FF hex 64 hex 0002 hex 2 bytes

Protocol identifier Field length Unit

identifier

Func-

tion

code

Subfunction code Error code

Parameter Description

Error code For details, refer to N?9-2-1 ?????? (P.9-3)?.

• Error Response

• Error Response: RF Tag Communications Error

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex E4 hex 1 byte

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

 Execution Examples

7 - 44

Writing 2,048 Words of Data Starting from Word Address 0000 Hex (User Area) in the RF Tag with No Options

Example 1: Execution When an RF Tag Is Not in the Communications Field (Error Code: 0000 (Normal Completion))

TX: 00000000100AFF64000230001111222233334444…FFFF0000

RX: 000000000006FF6600010000

Example 2: Execution When an RF Tag Is Not in the Communications Field (Error Code: 2001 Hex (RF Tag Missing Error))

TX: 00000000100AFF64000230001111222233334444…FFFF0000

RX: 000000000006FF640002200

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

EXTENDED MULTIACCESS ID READ

 Function

This command reads the IDs (EPC codes) of multiple RF Tags in the communications field.

You can get the IDs (EPC codes) of more than one RF Tag with one EXTENDED MULTIACCESS ID READ command.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 64 hex 0003 hex 2 bytes

Parameter Description

Subfunction code 0003 hex: EXTENDED MULTIACCESS ID READ Options For details, refer to 7-3 RF Communications Command Options on page 7-9.

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Options

 Response Formats

• Normal Response or Error Response: RF Tag Communications Error

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 2 bytes FF hex 64 hex 0003 hex 0000 to 0040 hex

Byte-12 ...

Information from RF Tag 1 ... Information from RF Tag m

n = 66 to 68 bytes ... n = 66 to 68 bytes

Error code StoredPC EPC code Options

2 bytes 2 bytes 62 bytes 2 bytes

Field length 0048 to 0F86 hex + (Option size × m)

Number of RF Tags Gives the number of RF Tags that were detected in 4-digit decimal.

Information from RF Tag 1

Protocol identifier Field length Unit

identifier

Byte-12 +

n - 1

...

Byte-12+n

*(m-1)

Function

...

Subfunction code Number of RF

code

Byte-12+(

n*m)-1

Information from RF Tag x

Reception level

Parameter Description

• For details on option sizes, refer to 7-3 RF Communications Command Options on page 7-9.

0000 to 0040 hex (0 to 64) Error code For details, refer to ?9-2-1 ?????? (P.9-3)?. StoredPC Gives the StoredPC data in 4-digit hexadecimal.

The upper 5 bits are the EPC word length. EPC code Gives the Tag-specific information according to Gen2 standards.

All bytes of the EPC code section that exceed the EPC word length in the

StoredPC are filled with 00 hex. Options These parameters may be omitted depending on the option value.

Reception

The reception level is attached in signed 4-digit hexadecimal.

FFFF to FF9D hex (-1 to -99 [dBm])

level

Ta gs ( m)

7-6 V780 Command Details

7-6-3 Modbus Expansion Communications Commands

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 45

7 Modbus/TCP Communications

• Error Response: Command Error

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex E4 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Protocol identifier Field length Unit

Error Completion on page 7-7.

 Execution Examples

Execution for Reading ID Data from Multiple RF Tags with no Option Specification

Example 1: Execution When Four RF Tags Are in the Communications Field

TX: 000000000006FF6400030000

identifier

Function

code

Excep-

tion code

RX: 000000000116FF6400030004

00003000AAAA…AAAA0000…0000: RF Tag A error code + StoredPC + EPC code (The six

words of the EPC length are all AAAA hex.)

00003000BBBB…BBBB0000…0000: RF Tag B error code + StoredPC + EPC code (The six

words of the EPC length are all BBBB hex.)

00003000CCCC…CCCC0000…0000: RF Tag C error code + StoredPC + EPC code (The six

words of the EPC length are all CCCC hex.)

2002000000000000000000…0000:

RF Tag D error code (2002 hex (communications error))

Example 2: Execution When an RF Tag Is Not in the Communications Field (Exception Code: 04 Hex (Failure in Device))

TX: 000000000006FF6400030000

RX: 000000000003FFE404

7 - 46

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

EXTENDED MULTIACCESS DATA READ

 Function

This command reads data from multiple RF Tags in the communications field.

You can get data from more than one RF Tag with one EXTENDED MULTIACCESS DATA READ command.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 000A hex FF hex 64 hex 0004 hex 2 bytes

Byte-12 Byte-13 Byte-14 Byte-15

Read size Options

2 bytes 2 bytes

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Read area start

address

Parameter Description

Subfunction code 0004 hex: EXTENDED MULTIACCESS DATA READ Read area start address Specify in 4-digit hexadecimal the start address for reading data.

Setting ranges (word address specifications)

0000 to 07FF hex: Reserved area

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Read size Specify in 4-digit hexadecimal the start address for reading data.

Setting range: 0001 to 0020 hex (1 to 32)

Options For details, refer to 7-3 RF Communications Command Options on page 7-9.

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 2 bytes FF hex 64 hex 0004 hex 0000 to 0040 hex

Byte-12 ... Byte-12 + n - 1 ...

Information from RF Tag 1 ... Information from RF Tag m

Protocol identifier Field length Unit

identifier

n = 4 to 132 bytes ... n = 4 to 132 bytes

Function

code

Byte-12+n*

(m-1)

Subfunction code Number of RF

...

Ta gs ( m)

Byte-12+

(n*m)-1

7-6 V780 Command Details

7-6-3 Modbus Expansion Communications Commands

Information from RF Tag x

Error code Read data Options

2 bytes 2 to 64 bytes 0 to 66 bytes

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

StoredPC EPC code Reception level

2 bytes 62 bytes 2 bytes

7 - 47

7 Modbus/TCP Communications

Parameter Description

Field length 000A to 2106 hex + (Option size × m)

Number of RF Tags Gives the number of RF Tags that were detected in 4-digit decimal.

Information from RF Tag 1

Error code For details, refer to ?9-2-1 ?????? (P.9-3)?. Read data The data that was read from the RF Tag is attached.

Options This section may be omitted depending on the option value for the SET

StoredPCGives the StoredPC data in 4-digit hexadecimal.

EPC code

Reception level

• For details on option sizes, refer to 7-3 RF Communications Command Options on page 7-9.

0000 to 0040 hex (0 to 64)

The bytes that exceed the word count will be filled with 00 hex.

MULTIACCESS ID READ command.

The upper 5 bits are the EPC word length. Gives the Tag-specific information according to Gen2 standards.

All bytes of the EPC code section that exceed the EPC word length in the StoredPC are filled with 00 hex.

The reception level is attached in signed 4-digit hexadecimal.

FFFF to FF9D hex (-1 to -99 [dBm])

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex E4 hex 1 byte

Note If the exception code is 04 hex (failure in slave device), this format is not used and a response is returned.

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Protocol identifier Field length Unit

identifier

Error Completion on page 7-7.

Function

code

Excep-

tion code

 Execution Examples

Reading 4 Words of Data Starting from Word Address 0123 Hex (User Area) in Multiple RF Tags with No Options

Example 1: Execution When Four RF Tags Are in the Communications Field

TX: 00000000000AFF640004312300040000

RX: 00000000002EFF6400040004

0000AAAAAAAAAAAAAAAA: RF Tag A error code + Read data (4 words, all AAAA

hex)

0000BBBBBBBBBBBBBBBB: RF Tag B error code + Read data (4 words, all BBBB

hex)

0000CCCCCCCCCCCCCCCC: RF Tag C error code + Read data (4 words, all CCCC

hex)

7 - 48

2002000000000000000000: RF Tag D error code (2002 hex (communications error))

Example 2: Execution When an RF Tag Is Not in the Communications Field (Exception Code: 04 Hex (Failure in Device))

TX: 00000000000AFF640004312300040000

RX: 000000000003FFE404

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6-4 Reader/Writer Control Commands

INITIALIZE

 Function

This command initializes the Reader/Writer settings. (That is, it returns them to the default settings.)

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0009 hex FF hex 10 hex A000 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

02 hex 0000 hex

Protocol identifier Field length Unit

identifier

Options

7 Modbus/TCP Communications

Function

code

7-6 V780 Command Details

Parameter Description

Register address The register address (A000 hex) that specifies initializing settings Word count The number of words for the option (0001 hex) Byte count The number of option bytes (02 hex) Options 0000 hex: No options

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex A000 hex 0001 hex

Parameter Description

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Protocol identifier Field length Unit

identifier

Protocol identifier Field length Unit

identifier

Function

code

Function

code

Excep-

tion code

7-6-4 Reader/Writer Control Commands

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 49

7 Modbus/TCP Communications

 Execution Examples

Execution to Initialize the Reader/Writer Settings

TX: 000000000009FF10A0000001020000

RX: 000000000006FF10A0000001

7 - 50

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

RESET

 Function

This command restarts the entire Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0009 hex FF hex 10 hex A100 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

02 hex 2 bytes

Protocol identifier Field length Unit

Options

identifier

Function

code

Parameter Description

Register address The register address (A100 hex) that specifies resetting the Reader/Writer. Word count The number of words for the option (0001 hex) Byte count The number of option bytes (02 hex) Options 0001 hex: Repeat

FFFF hex: Forced reset

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex A100 hex 0001 hex

Parameter Description

Note A response is not returned for forced resetting.

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Protocol identifier Field length Unit

identifier

Protocol identifier Field length Unit

identifier

Function

code

Function

code

Excep-

tion code

7-6 V780 Command Details

7-6-4 Reader/Writer Control Commands

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

 Execution Examples

Execution to Restart the Entire Reader/Writer

TX: 000000000009FF10A1000001020000

RX: 000000000006FF10A1000001

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 51

7 Modbus/TCP Communications

STOP

 Function

This command stops RF Tag communications command execution by the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0009 hex FF hex 10 hex A200 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

02 hex 0000 hex

Protocol identifier Field length Unit

Options

identifier

Function

code

Parameter Description

Register address The register address (A200 hex) that specifies stopping execution Word count The number of words for the option (0001 hex) Byte count The number of option bytes (02 hex) Options 0000 hex: No options

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex A200 hex 0001 hex

Parameter Description

Note A response is not returned for forced resetting.

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Protocol identifier Field length Unit

identifier

Protocol identifier Field length Unit

identifier

Function

code

Function

code

Excep-

tion code

7 - 52

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

 Execution Examples

Execution to Stop RF Tag Communications Command Execution by the Reader/Writer

TX: 000000000009FF10A2000001020000

RX: 000000000006FF10A2000001

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

RESET FOCUS

 Function

This command initializes the target level information of all the RF Tags that are being monitored by the Reader/Writer in Focus Mode.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0009 hex FF hex 10 hex A300 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

02 hex 0000 hex

Protocol identifier Field length Unit

Options

identifier

Function

code

Parameter Description

Register address The register address (A300 hex) that specifies resetting the focus Word count The number of words for the option (0001 hex) Byte count The number of option bytes (02 hex) Options 0000 hex: No options

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex A300 hex 0001 hex

Parameter Description

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Protocol identifier Field length Unit

identifier

Protocol identifier Field length Unit

identifier

Function

code

Function

code

Excep-

tion code

7-6 V780 Command Details

7-6-4 Reader/Writer Control Commands

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

 Execution Examples

Execution to Initialize Target Levels of All RF Tags Monitored by Reader/Writer in Focus Mode

TX: 000000000009FF10A3000001020000

RX: 000000000009FF10A3000001020000

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 53

7 Modbus/TCP Communications

7-6-5 Reader/Writer Setting Commands: Network Settings

SET TCP/IP COMMUNICATIONS CONDITIONS

 Function

This command sets the TCP/IP communications conditions of the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0015 hex FF hex 10 hex B000 hex 0007 hex

Byte-12 Byte-13 Byte-14 Byte-15 ... Byte-18 Byte-19 ... Byte-22 Byte-23 ... Byte-26

Byte

count

0E hex IP address setting

Protocol identifier Field length Unit

identifier

TCP/IP communications conditions

IP address Subnet mask Gateway address

method

2 bytes 4 bytes 4 bytes 4 bytes

Function

code

Parameter Description Default setting

tions. Word count The number of words in the TCP/IP communications conditions (0007 hex) Byte count The number of bytes in the TCP/IP communications conditions (0E hex) TCP/IP

communications conditions

IP address setting method

IP address

Specify in 4-digit hexadecimal the IP address setting method.

0000 hex: Fixed setting

00001 hex: Obtain from BOOTP server

0002 hex: Get from BOOTP server as fixed settings

Specify in 8-digit hexadecimal the fixed IP addresses to set.

0000 hex

C0A801C8 hex

Setting range: 00000000 to DFFFFFFF hex

Example: C0A801C8 hex (192.168.1.200)

Subnet mask

Specify in 8-digit hexadecimal the subnet mask to set.

FFFFFF00 hex

Setting range: FF000000 to FFFFFFFF hex

Example: FFFFFF00 hex (255.255.255.0)

Gateway

address

Specify in 8-digit hexadecimal the gateway address to set.

Setting range: 00000000 to DFFFFFFF hex

C0A801FE hex

Example: C0A801FE hex (192.168.1.254)

*1. Specify 00000000 hex for any IP address setting method other than using a fixed IP address.

 Response Formats

7 - 54

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex B000 hex 0007 hex

Protocol identifier Field length Unit

identifier

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

7 Modbus/TCP Communications

Parameter Description

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Protocol identifier Field length Unit

identifier

Error Completion on page 7-7.

Function

code

Excep-

tion code

 Execution Examples

Execution to Set the Following TCP/IP Communications Conditions in the Reader/Writer

IP address setting method: Fixed, IP address: 192.168.1.200, Subnet mask: 255.255.255.0, Gateway address: 192.168.1.1

7-6 V780 Command Details

TX: 000000000015FF10B00000070E0000C0A801C8FFFFFF00C0A80101

RX: 000000000006FF10B0000007

7-6-5 Reader/Writer Setting Commands: Network Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 55

7 Modbus/TCP Communications

GET TCP/IP COMMUNICATIONS CONDITIONS

 Function

This command is used to check the TCP/IP communications conditions that are set in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex B000 hex 0007 hex

Parameter Description

Word count The number of words of the TCP/IP communications conditions to read (0007 hex)

Protocol identifier Field length Unit

tions.

identifier

Function

code

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0011 hex FF hex 03 hex 0E hex

Byte-9 Byte-10 Byte-11 ... Byte-14 Byte-15 ... Byte-18 Byte-19 ... Byte-22

IP address setting

method

2 bytes 4 bytes 4 bytes 4 bytes

Parameter Description Default setting

Byte count The number of bytes in the TCP/IP communications condi-

TCP/IP commu-

IP address set-

ting method nications conditions

IP address

Subnet mask

Gateway

address

*1. For any IP address setting method except for using a fixed address, 00000000 hex is returned.

Protocol identifier Field length Unit

TCP/IP communications conditions

IP address Subnet mask Gateway address

identifier

tions that were read (0E hex) Gives the IP address setting method that was read in 4-digit

hexadecimal.

0000 hex: Fixed setting

00001 hex: Obtain from BOOTP server

0002 hex: Get from BOOTP server as fixed settings

Gives the IP address that was read in 8-digit hexadecimal.

Example: C0A801C8 hex (192.168.1.200)

Gives the subnet mask that was read in 8-digit hexadecimal.

Example: FFFFFF00 hex (255.255.255.0) Gives the gateway address that was read in 8-digits hexa-

decimal.

Example: C0A801FE hex (192.168.1.254)

Function

code

Byte

count

0000 hex

C0A801C8 hex

FFFFFF00 hex

C0A801FE hex

7 - 56

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Protocol identifier Field length Unit iden-

tifier

Error Completion on page 7-7.

Function

code

Excep-

tion code

 Execution Examples

Execution When the Following TCP/IP Communications Conditions Are Set in the Reader/Writer

IP address setting method: Fixed, IP address: 192.168.1.200, Subnet mask: 255.255.255.0, Gateway address: 192.168.1.1

TX: 000000000006FF03B0000007

RX: 000000000011FF030E0000C0A801C8FFFFFF00C0A80101

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 57

7 Modbus/TCP Communications

SET DEVICE NAME

 Function

This command is used to set or clear a name for the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0047 hex FF hex 10 hex B100 hex 0020 hex

Byte-12 Byte-13 ... Byte-76

Byte

count

40 hex 64 bytes

Protocol identifier Field length Unit

Device name

identifier

Function

code

Parameter Description

Register address The register address (B100 hex) that specifies the device name Word count The number of words in the device name (0020 hex) Byte count The number of bytes in the device name (40 hex) Device name ASCII characters, 64 bytes max.

(63 ASCII characters max. + End code of 00 hex)

If there are fewer than 63 characters, the remaining bytes are filled with 00 hex.

The device name is given with ASCII characters 20 hex (space) to 7E hex (~).

Specify 00 hex for all bytes to clear the device name.

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex B100 hex 0020 hex

Protocol identifier Field length Unit

identifier

Function

code

Parameter Description

7 - 58

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Protocol identifier Field length Unit iden-

tifier

Completion on page 7-7.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

Excep-

tion code

7 Modbus/TCP Communications

 Execution Examples

Execution to Set the Reader/Writer Device Name to V780-A001

TX: 000000000047FF10B10000204056363830532D413030310000000000…00

RX: 000000000006FF10B1000020

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 59

7 Modbus/TCP Communications

GET DEVICE NAME

 Function

This command is used to check the name that is set in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex B100 hex 0020 hex

Parameter Description

Register address The register address (B100 hex) that specifies the device name Word count The number of words in the device name (0020 hex)

 Response Formats

Protocol identifier Field length Unit

identifier

Function

code

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 ... Byte-72

Transaction identi-

fier

X X 0000 hex 0043 hex FF hex 03 hex 40 hex 64 bytes

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Device name

Parameter Description

Byte count The number of words in the device name that was read (40 hex) Device name The device name that was read is given with up to 64 bytes of ASCII characters (up

to 63 ASCII characters plus the end code (00 hex))

If there are fewer than 63 characters, the remaining bytes are filled with 00 hex.

The device name is given with ASCII characters 20 hex (space) to 7E hex (~).

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Protocol identifier Field length Unit

identifier

Error Completion on page 7-7.

Function

code

Excep-

tion code

7 - 60

 Execution Examples

Execution When the Reader/Writer Device Name Is Set to V780-A001

TX: 000000000006FF03B1000020

RX: 000000000043FF034056363830532D413030310000000000…00

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

SET MODBUS/TCP COMMUNICATIONS CONDITIONS

 Function

This command sets the Modbus/TCP communications conditions of the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0009 hex FF hex 10 hex B200 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

02 hex 2 bytes

Modbus/TC com-

munications condi-

Protocol identifier Field length Unit

tions

Port number

identifier

Function

code

Parameter Description Default setting

Register address The register address (B200 hex) that specifies the Modbus/TCP communications conditions Word count The number of words in the Modbus/TCP communications conditions (0001 hex) Byte count The number of bytes in the Modbus/TCP communications conditions (02 hex) Mod-

bus/TC communications condi-

Port number

Specify the Modbus/TCP communications port number in 4-digit hexadecimal.

Setting range: 01F6 hex or 0400 to FFFF hex

Example: 01F6 hex (502)

• IANA manages ports 000 to 03FF hex.

01F6 hex (502)

tions

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex B200 hex 0001 hex

Parameter Description

Protocol identifier Field length Unit

identifier

Function

code

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Protocol identifier Field length Unit

Completion on page 7-7.

identifier

Function

code

Excep-

tion code

7 - 61

7 Modbus/TCP Communications

 Execution Examples

Execution to Set the Following Modbus/TCP Communications Conditions in the Reader/Writer

Port number: 502

TX: 000000000009FF10B20000010201F6

RX: 000000000006FF10B2000001

7 - 62

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

GET MODBUS/TCP COMMUNICATIONS CONDITIONS

 Function

This command is used to check the Modbus/TCP communications conditions of the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex B200 hex 0001 hex

Protocol identifier Field length Unit

identifier

Function

code

Parameter Description

Default set-

ting

Register address The register address (B200 hex) that specifies the Modbus/TCP communications conditions Word count The number of words of the Modbus/TCP communications conditions to read (0001 hex)

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

X X 0000 hex 0005 hex FF hex 03 hex 02 hex 2 bytes

Parameter Description

Byte count The number of bytes in the Modbus/TCP communications conditions that were

Modbus/TC communications conditions

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Protocol identifier Field length Unit

identifier

read (02 hex) Port number

Protocol identifier Field length Unit

Gives the Modbus/TCP communications port number in 4-digit hexadecimal.

Example: 01F6 hex (502)

identifier

Function

code

Function

code

Byte

count

Excep-

tion code

Modbus/TC com-

munications condi-

tions

Port number

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

 Execution Examples

Execution When the Following Modbus/TCP Communications Conditions Are Set in the Reader/Writer

Port number: 502

TX: 000000000006FF03B2000001

RX: 000000000005FF030201F6

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 63

7 Modbus/TCP Communications

SET WEB COMMUNICATIONS CONDITIONS

 Function

This command sets the Web browser communications conditions of the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0009 hex FF hex 10 hex B300 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

02 hex 2 bytes

Web communica-

tions conditions

Protocol identifier Field length Unit

Port number

identifier

Function

code

Parameter Description Default setting

Register address The register address (B300 hex) that specifies the Web communications conditions Word count The number of words in the Web communications conditions (0001 hex) Byte count The number of bytes in the Web communications conditions (02 hex) Web

communications

Port number

Specify the Web communications port number in 4-digit hexadecimal.

Setting range: 0400 to FFFF hex

Example: 1BB2 hex (7090)

1BB2 hex (7090)

conditions

• IANA manages ports 000 to 03FF hex.

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex B300 hex 0001 hex

Parameter Description

Protocol identifier Field length Unit

identifier

Function

code

7 - 64

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Protocol identifier Field length Unit

identifier

Error Completion on page 7-7.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

Excep-

tion code

7 Modbus/TCP Communications

 Execution Examples

Execution to Set the Following Web Communications Conditions in the Reader/Writer

Port number: 7090

TX: 000000000009FF10B3000001021BB2

RX: 000000000006FF10B3000001

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 65

7 Modbus/TCP Communications

GET WEB COMMUNICATIONS CONDITIONS

 Function

This command is used to check the Web browser communications conditions of the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex B300 hex 0001 hex

Parameter Description

Register address The register address (B300 hex) that specifies the Web communications conditions Word count The number of words of the Web communications conditions to read (0001 hex)

 Response Formats

Protocol identifier Field length Unit

identifier

Function

code

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

X X 0000 hex 0005 hex FF hex 03 hex 02 hex 2 bytes

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Web communica-

tions conditions

Port number

Parameter Description

Byte count The number of bytes in the Web communications conditions that were read (02 hex) Web com-

munica-

Port number

Gives the Web communications port number that was read in 4-digit hexadecimal.

Example: 1BB2 hex (7090)

tions conditions

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Protocol identifier Field length Unit

identifier

Error Completion on page 7-7.

Function

code

Excep-

tion code

7 - 66

 Execution Examples

Execution When the Following Web Communications Conditions Are Set in the Reader/Writer

Port number: 7090

TX: 000000000006FF03B3000001

RX: 000000000005FF03021BB2

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

SET WEB PASSWORD

 Function

This command sets or clears the Reader/Writer login password for the Web browser interface.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0017 hex FF hex 10 hex B400 hex 0008 hex

Byte-12 Byte-13 ... Byte-28

Byte

count

10 hex 16 bytes

Protocol identifier Field length Unit

Web password

identifier

Function

code

Parameter Description

Register address The register address (B400 hex) that specifies the Web password Word count The number of words in the Web password (0008 hex) Byte count The number of bytes in the Web password (10 hex) Web password Specify the Web password with up to 16 bytes of ASCII characters (up to 15 ASCII characters

plus the end code (00 hex)).

If there are fewer than 15 characters, fill the remaining bytes with 00 hex.

You can specify ASCII characters 20 hex (space) to 7E hex (~).

To clear the password, specify 00 hex for all of the write data.

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex B400 hex 0008 hex

Parameter Description

Protocol identifier Field length Unit

identifier

Function

code

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Protocol identifier Field length Unit

Error Completion on page 7-7.

identifier

Function

code

Excep-

tion code

7 - 67

7 Modbus/TCP Communications

 Execution Examples

Setting the Reader/Writer Web Password to “password”

TX: 000000000017FF10B40000081070617373776F72640000000000000000

RX: 000000000006FF10B4000008

7 - 68

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

GET WEB PASSWORD

 Function

This command is used to check the login password that is set in the Reader/Writer for the Web browser interface.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex B400 hex 0008 hex

Parameter Description

Register address The register address (B400 hex) that specifies the Web password Word count The number of words in the Web password (0008 hex)

Protocol identifier Field length Unit

identifier

Function

code

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 ... Byte-24

Transaction identi-

fier

X X 0000 hex 0013 hex FF hex 03 hex 10 hex 16 bytes

Parameter Description

Byte count The number of bytes in the Web password that was read (10 hex) Web password Gives the Web password that was read with up to 16 bytes of ASCII char-

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Protocol identifier Field length Unit

identifier

acters (up to 15 ASCII characters plus the end code (00 hex)).

If there are fewer than 15 characters, the remaining bytes are filled with 00 hex.

The Web password is given with ASCII characters 20 hex (space) to 7E hex (~).

Protocol identifier Field length Unit

identifier

Function

code

Function

code

Byte

count

Excep-

tion code

Web password

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

 Execution Examples

Execution When the Reader/Writer Web Password Is Set to “password”

TX: 000000000006FF03B4000008

RX: 000000000013FF031070617373776F72640000000000000000

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 69

7 Modbus/TCP Communications

7-6-6 Reader/Writer Setting Commands: Communications Settings

SET TAG COMMUNICATIONS CONDITIONS

 Function

This command sets the communications conditions for the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0011 hex FF hex 10 hex C000 hex 0005 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18 Byte-19 Byte-20 Byte-21 Byte-22

Byte

count

0A hex RF communica-

Protocol identifier Field length Unit

identifier

Communications conditions

RF communica-

tions mode

2 bytes 2 bytes 2 bytes 2 bytes 0000 hex

tions speed

RF communica-

tions timeout time

Function

code

Write verification Reserved

Parameter Description Default setting

tions Word count The number of words in the RF communications conditions (0005 hex) Byte count The number of bytes in the RF communications conditions (0A hex) Commu-

nications conditions

RF communications mode

RF communications speed

Specify the communications mode in 4-digit hexadecimal.

0000 hex: Once

0001 hex: Auto

0002 hex: Focus

Specify the communications speed in 4-digit hexadecimal.

0000 hex: Automatic (default)

0000 hex

0001 hex: High speed

0002 hex: Normal speed

RF communications timeout time

Write verification Specify in 4-digit hexadecimal whether to perform write veri-

Specify the RF communications timeout time.

0001 to EA60 hex (1 to 60,000 [ms])

00FA hex

(250) 0001 hex

fication.

0000 hex: Disable, 0001 hex: Enable

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex C000 hex 0005 hex

Protocol identifier Field length Unit

identifier

Function

code

7 - 70

Parameter Description

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Protocol identifier Field length Unit

identifier

Error Completion on page 7-7.

Function

code

Excep-

tion code

 Execution Examples

Execution to Set the Following RF Communications Conditions in the Reader/Writer

RF communications mode: Once, RF communications speed: Auto, RF communications timeout time: 250 ms, Write verification: Enabled

TX: 000000000011FF10C00000050A0000000000FA00010000

RX: 000000000006FF10C0000005

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 71

7 Modbus/TCP Communications

GET TAG COMMUNICATIONS CONDITIONS

 Function

This command is used to check the RF communications conditions that are set in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex C000 hex 0005 hex

Word count The number of words of the RF communications conditions to read (0005

Protocol identifier Field length Unit

Parameter Description

conditions

hex)

identifier

Function

code

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 000D hex FF hex 03 hex 0A hex

Byte-9 Byte-10 Byte-11 Byte-12

RF communica-

tions mode

2 bytes 2 bytes 2 bytes 2 bytes 0000 hex

Word count The number of words in the RF communications conditions (0005 hex) Byte count The number of bytes in the RF communications conditions (0A hex) Communica-

tions conditions

Protocol identifier Field length Unit

RF communica-

tions speed

Byte-1

Communications conditions

RF communica-

tions timeout time

Byte-14 Byte-15 Byte-16 Byte-17 Byte-18

identifier

Write verification Reserved

Function

code

Byte

count

Parameter Description Default setting

conditions

RF communications mode

Gives the communications mode in 4-digit hexadecimal.

0000 hex

0000 hex: Once

0001 hex: Auto

0002 hex: Focus RF communications speed

Gives the communications speed in 4-digit hexadeci-

mal.

0000 hex

0000 hex: Automatic (default)

0001 hex: High speed

0002 hex: Normal speed RF communica-

tions timeout time

Write verification Gives whether write verification is being performed in

Gives the RF communications timeout time.

0001 to EA60 hex (1 to 60,000 [ms])

00FA hex

(250) 0001 hex

4-digit hexadecimal.

0000 hex: Disable, 0001 hex: Enable

7 - 72

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Protocol identifier Field length Unit

identifier

Error Completion on page 7-7.

Function

code

Excep-

tion code

 Execution Examples

Execution When the Following RF Communications Conditions Are Set in the Reader/Writer

RF communications mode: Once, RF communications speed: Auto, RF communications timeout time: 250 ms, Write verification: Enabled

TX: 000000000006FF03C0000005

RX: 00000000000DFF030A0000000000FA00010000

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 73

7 Modbus/TCP Communications

SET TRANSMISSION POWER

 Function

This command sets the transmission powers of the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 000B hex FF hex 10 hex C100 hex 0002 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16

Byte

count

04 hex Read transmis-

Protocol identifier Field length Unit

Transmission power

sion power

2 bytes 2 bytes

Write transmis-

sion power

identifier

Function

code

Parameter Description Default setting

powers

Word count The number of words in the transmission power settings (0002 hex) Byte count The number of bytes in the transmission power setting (04 hex) Transmission power

Read transmission power

Specify the transmission power for read RF communi-

cations commands in 4-digit hexadecimal.

001B hex (27 [dBm])

000F to 001B hex (15 to 27 dBm)

Write transmission power

Specify the transmission power for write RF communi-

cations commands in 4-digit hexadecimal.

001B hex (27 [dBm])

000F to 001B hex (15 to 27 dBm)

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex C100 hex 0002 hex

Parameter Description

Protocol identifier Field length Unit

identifier

Function

code

7 - 74

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Protocol identifier Field length Unit

identifier

Error Completion on page 7-7.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

Excep-

tion code

7 Modbus/TCP Communications

 Execution Examples

Execution to Set the Following Transmission Powers in the Reader/Writer

Read transmission power: 27 dBm, Write transmission power: 27 dBm

TX: 00000000000BFF10C100000204001B001B

RX: 000000000006FF10C1000002

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 75

7 Modbus/TCP Communications

GET TRANSMISSION POWER

 Function

This command is used to check the transmission powers that are set in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex C100 hex 0002 hex

Parameter Description

Register address The register address (C100 hex) that specifies setting the transmission power Word count The number of words of the antenna setting to read (0002 hex)

 Response Formats

Protocol identifier Field length Unit

identifier

Function

code

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0007 hex FF hex 03 hex 04 hex

Byte-9 Byte-10 Byte-11 Byte-12

Transmission powers

Read transmis-

sion power

2 bytes 2 bytes

Byte count The number of bytes in the transmission powers (06 hex) Transmission

power

Protocol identifier Field length Unit

identifier

Write transmis-

sion power

Function

code

Byte

count

Parameter Description Default setting

Read transmission power

Gives the transmission power for read RF communica-

tions commands in 4-digit hexadecimal.

000F to 001B hex (15 to 27 dBm)

Write transmission power

Gives the transmission power for write RF communica-

tions commands in 4-digit hexadecimal.

000F to 001B hex (15 to 27 dBm)

001B hex

(27 [dBm])

001B hex

(27 [dBm])

7 - 76

 Execution Examples

Execution When the Following RF Transmission Powers Are Set in the Reader/Writer

Read transmission power: 27 dBm, Write transmission power: 27dBm

TX: 000000000006FF03C1000002

RX: 000000000007FF0304001B001B

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

SET CHANNEL

 Function

This command sets the channel in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0009 hex FF hex 10 hex C200 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

02 hex 2 bytes

Protocol identifier Field length Unit

Channel

identifier

Function

code

Parameter Description Default setting

Register address The register address (C200 hex) that specifies the channel Channel Specify the channel in 4-digit hexadecimal.

0000 hex

0000 hex: Auto

0002 hex: Channel 2

0008 hex: Channel 8

000E hex: Channel 14

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex C200 hex 0001 hex

Parameter Description

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Protocol identifier Field length Unit

identifier

Function

code

tifier

Function

code

Excep-

tion code

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 77

7 Modbus/TCP Communications

 Execution Examples

Execution to Set Channel 2 for the Reader/Writer

TX: 000000000009FF10C2000001020002

RX: 000000000006FF10C2000001

7 - 78

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

GET CHANNEL

 Function

This command is used to check the channel that is set in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex C200 hex 1 byte

Parameter Description

Word count Always 0001 hex.

Protocol identifier Field length Unit

identifier

channel

Function

code

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

X X 0000 hex 0005 hex FF hex 03 hex 02 hex 2 bytes

Parameter Description Default setting

Field length Always 0005 hex. Byte count Always 02 hex. Channel Gives the channel in 4-digit hexadecimal.

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Protocol identifier Field length Unit

identifier

0000 hex: Auto

0002 hex: Channel 2

0008 hex: Channel 8

000E hex: Channel 14

Function

tifier

code

Byte

count

Function

code

Channel

0000 hex

Excep-

tion code

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

 Execution Examples

Execution When Channel 2 Is Set for the Reader/Writer

TX: 000000000006FF03C2000001

RX: 000000000005FF03020002

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 79

7 Modbus/TCP Communications

SET GEN2 SESSION

 Function

This command sets the Gen2 session for the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 009 hex FF hex 10 hex C300 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

02 hex 2 bytes

Protocol identifier Field length Unit

Gen2 Session

identifier

Function

code

Parameter Description Default setting

Register address The register address (C300 hex) that specifies the Gen2 session setting Word count The number of words in the Gen2 session setting (0001 hex) Byte count The number of bytes in the Gen2 session setting (02 hex) Gen2 session Specify the session to use for RF Tag communications in 4-digit

0000 hex

hexadecimal.

0000 hex: S0 flag

0001 hex: S1 flag

0002 hex: S2 flag

0003 hex: S3 flag

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex C300 hex 0001 hex

Parameter Description

Protocol identifier Field length Unit

identifier

Func-

tion code

7 - 80

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

Excep-

tion code

 Execution Examples

Execution to Set S2 as the Gen2 Session for the Reader/Writer

TX: 000000000009FF10C3000001020002

RX: 000000000006FF10C3000001

7 Modbus/TCP Communications

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 81

7 Modbus/TCP Communications

GET GEN2 SESSION

 Function

This command is used to check the Gen2 session that is set in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex C300 hex 0001 hex

Parameter Description

Word count The number of words in the Gen2 session setting to read (0001

Protocol identifier Field length Unit

setting

hex)

identifier

Function

code

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

X X 0000 hex 0005 hex FF hex 03 hex 02 hex 2 bytes

Parameter Description Default setting

Byte count The number of bytes in the Gen2 session setting that was read (02 hex) Gen2 session Gives the session that is being used for RF Tag communications in

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Protocol identifier Field length Unit

identifier

4-digit hexadecimal.

0000 hex: S0 flag (default)

0001 hex: S1 flag

0002 hex: S2 flag

0003 hex: S3 flag

Func-

tion code

tifier

Byte

count

Function

code

Gen2 session

0000 hex

Excep-

tion code

7 - 82

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

 Execution Examples

Execution When S2 Is Set as the Gen2 Session for the Reader/Writer

TX: 000000000006FF03C3000001

RX: 000000000005FF03020002

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

SET ACCESS PASSWORD

 Function

This command sets the access password for RF Tag communications of the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 000B hex FF hex 10 hex C400 hex 0002 hex

Byte-12 Byte-13 ... Byte-16

Byte

count

04 hex 4 bytes

Protocol identifier Field length Unit

Access password

identifier

Function

code

Parameter Description Default setting

Register address The register address (C400 hex) that specifies the access password setting Access password Specify the access password to use for RF Tag communications in

00000000 hex

8-digit hexadecimal.

The specified access password is stored in EEPROM memory in the Reader/Writer.

If the access password in the RF Tag is not all zeros, the access password that is stored in EEPROM memory must be used to execute LOCK, WRITE ID, READ DATA, or WRITE DATA commands.

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex C400 hex 0002 hex

Parameter Description

Word count Always 0002 hex.

Protocol identifier Field length Unit

identifier

Function

code

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

tifier

Function

code

Excep-

tion code

7 - 83

7 Modbus/TCP Communications

 Execution Examples

Execution to Set the Reader/Writer Access Password to “12345678 hex”

TX: 00000000000BFF10C40000020412345678

RX: 000000000006FF10C4000002

7 - 84

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

GET ACCESS PASSWORD

 Function

This command reads the access password that is set for RF Tag communications in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex C400 hex 0002 hex

Parameter Description

Word count The number of words in the access password to read (0002 hex)

Protocol identifier Field length Unit

identifier

password

Function

code

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 ... Byte-12

Transaction identi-

fier

X X 0000 hex 0007 hex FF hex 03 hex 04 hex 4 bytes

Parameter Description Default setting

Byte count The number of bytes in the access password (04 hex) Access password Gives the access password to use for RF Tag communications in

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Protocol identifier Field length Unit

identifier

8-digit hexadecimal.

The specified access password is stored in EEPROM memory in the Reader/Writer.

If the access password in the RF Tag is not all zeros, the access password that is stored in EEPROM memory must be used to execute LOCK, WRITE ID, READ DATA, or WRITE DATA commands.

Function

tifier

code

Byte

count

Function

code

Access password

00000000 hex

Excep-

tion code

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

 Execution Examples

Execution When the Reader/Writer Access Password Is Set to “12345678 hex”

TX: 000000000006FF03C4000002

RX: 000000000007FF030412345678

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 85

7 Modbus/TCP Communications

SET RF TAG SELECTION FILTER CONDITIONS

 Function

This command sets the RF Tag selection filter conditions for the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 002D hex FF hex 10 hex C500 hex 0013 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18 Byte-19 ... Byte-50

Byte

count

26 hex 2 bytes 2 bytes 2 bytes 32 bytes

Protocol identifier Field length Unit

Enable/disable Address Data length Data

identifier

Function

RF Tag selection filter conditions

code

Parameter Description Default setting

tion filter conditions

Word count The number of words in the RF Tag selection filter conditions (0013 hex) Byte count The number of bytes in the RF Tag selection filter conditions (26 hex) RF Tag selection

filter conditions

Enable/disable Specify whether to enable or disable RF Tag selection

filter conditions in 4-digit hexadecimal.

0000 hex

0000 hex: Disable

0001 hex: Enable

Address

*1.

Set the address (in words) of the RF Tag to check for in

0000 hex

4-digit hexadecimal.

Setting ranges (word address specifications)

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

*You cannot specify 0000 to 07FF hex (reserved area).

Data length

*1.

Specify the number of words of data to check in 4-digit

0000 hex

hexadecimal.

Setting range: 0000 to 0010 hex

Data

*1.

Specify the data to check for. (Always 16 words.)

00....00 hex

*Fill unused data with 0000 hex.

*In compliance with Gen2 standards, bits 0 to 255 are

masked, so the last bit of word 16 (bit 256) is ignored.

*1. If the RF Tag selection filter conditions settings are disabled, this value is always 0000 hex.

7 - 86

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex C500 hex 0013 hex

Protocol identifier Field length Unit

identifier

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

7 Modbus/TCP Communications

Parameter Description

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

Function

code

Excep-

tion code

 Execution Examples

Example 1: Execution When Enabling RF Tag Selection Filter Conditions for the Reader/Writer with the Following Settings

Address: 3000 hex, Data length: 1 word, Data to check for: 1234 hex

7-6 V780 Command Details

TX: 00000000002DFF10C500001326000130000001123400…00

RX: 000000000006FF10C5000013

Example 2: Execution When Disabling RF Tag Selection Filter Conditions for the Reader/Writer

TX: 00000000002DFF10C50000132600000000000000000…00

RX: 000000000006FF10C5000013

7-6-6 Reader/Writer Setting Commands: Communications Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 87

7 Modbus/TCP Communications

GET RF TAG SELECTION FILTER CONDITIONS

 Function

This command reads the RF Tag selection filter conditions that are set in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex C500 hex 0013 hex

Parameter Description

Word count The number of words in the RF Tag selection filter conditions to

Protocol identifier Field length Unit

selection filter conditions

read (0013 hex)

identifier

Function

code

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0028 hex FF hex 03 hex 26 hex

Byte-9 Byte-10 Byte-11 Byte-12 Byte-13 Byte-14 Byte-15 ... Byte-46

Enable/disable Address Data length Data

2 bytes 2 bytes 2 bytes 32 bytes

Byte count The number of bytes in the RF Tag selection filter conditions (26 hex) RF Tag selection filter conditions

*1. If the RF Tag selection filter conditions settings are being disabled, this value is always 0000 hex.

Protocol identifier Field length Unit

identifier

RF Tag selection filter conditions

Function

code

Byte

count

Parameter Description Default setting

Enable/disable Gives whether RF Tag selection filter conditions are

0000 hex

enabled or disabled in 4-digit hexadecimal.

0000 hex: Disable

0001 hex: Enable

Address

*1.

Gives the address (in words) of the RF Tag to check for

0000 hex

in 4-digit hexadecimal.

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Data length

*1.

Gives the number of words of data to check in 4-digit

0000 hex

hexadecimal.

0000 to 0010 hex

Data

*1.

Gives the data to check for. (Always 16 words.)

00....00 hex

*Unused data is filled with 0000 hex.

*In compliance with Gen2 standards, bits 0 to 255 are

masked, so the last bit of word 16 (bit 256) is ignored.

7 - 88

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

Function

code

Excep-

tion code

 Execution Examples

Execution When RF Tag Selection Filter Conditions for the Reader/Writer Are Enabled with the Following Settings

Address: 3000 hex, Data length: 1 word, Data to check: 1234 hex

TX: 000000000006FF03C5000013

RX: 000000000029FF0326000130000001123400…00

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 89

7 Modbus/TCP Communications

SET RSSI FILTER CONDITIONS

 Function

This command sets the RSSI filter conditions for the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 000D hex FF hex 10 hex C600 hex 0003 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18

Byte

count

06 hex 2 bytes 2 bytes 2 bytes

Parameter Description Default setting

Register address The register address (C600 hex) that specifies the RSSI filter conditions Word count The number of words in the RSSI filter conditions (0003 hex) Byte count The number of bytes in the RSSI filter conditions (06 hex) RSSI filter conditions

*1. When you disable the RSSI filter conditions, set the high and low thresholds to 0000 hex. When you enable

the RSSI filter, set the high threshold value for the reception level to a higher value than the low threshold level. Otherwise, a command parameter error will occur.

Protocol identifier Field length Unit

RSSI filter conditions

Enable/disable High threshold Low threshold

Enable/disable Specify whether the RSSI filter is enabled or disabled in

High threshold

Low threshold

identifier

Function

code

4-digits hexadecimal.

0000 hex: Disable

0001 hex: Enable Specify the high threshold for the reception level in signed 4-digit hexadecimal.

FFF6 to FFBA hex (0 or -70 to -10) [dBm] Specify the low threshold for the reception level in signed

4-digit hexadecimal.

FFF6 to FFBA hex (0 or -70 to -10) [dBm]

0000 hex

7 - 90

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex C600 hex 0003 hex

Parameter Description

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Protocol identifier Field length Unit

identifier

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

tifier

Function

code

Excep-

tion code

7 Modbus/TCP Communications

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

 Execution Examples

Example 1: Execution When Enabling RSSI Filter Conditions for the Reader/Writer with the Following Settings

High threshold: -40 dBm (FFD8 hex), Low threshold: -64 dBm (FFC0 hex)

TX: 00000000000DFF10C6000003060001FFD8FFC0

RX: 000000000006FF10C6000003

Example 2: Execution When Disabling RSSI Filter Conditions for the Reader/Writer

TX: 00000000000DFF10C600000306000000000000

RX: 000000000006FF10C6000003

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 91

7 Modbus/TCP Communications

GET RSSI FILTER CONDITIONS

 Function

This command is used to check the RSSI filter conditions that are set in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex C600 hex 0003 hex

Parameter Description

Register address The register address (C600 hex) that specifies reading the RSSI filter conditions Word count The number of words in the RSSI filter conditions to read (0003 hex)

 Response Formats

Protocol identifier Field length Unit

identifier

Function

code

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0009 hex FF hex 03 hex 04 hex

Byte-9 Byte-10 Byte-11 Byte-12 Byte-13 Byte-14

Enable/disable High threshold Low threshold

2 bytes 2 bytes 2 bytes

Parameter Description Default setting

Byte count The number of bytes in the RSSI filter conditions (06 hex) RSSI filter conditions

*1. If the RSSI filter conditions are disabled, the high and low threshold levels will always be 0000 hex.

Protocol identifier Field length Unit

RSSI filter conditions

Enable/disable

Gives whether the RSSI filter is enabled or disabled in 4-digits hexadecimal.

identifier

Function

code

Byte

count

0000 hex: Disable

0001 hex: Enable

High threshold*1Gives the RSSI high threshold level in signed 4-digit hexa-

decimal.

FFF6 to FFBA hex (0 or −70 to −10) [dBm]

Low threshold*1Gives the RSSI low threshold level in signed 4-digit hexa-

decimal.

FFF6 to FFBA hex (0 or −70 to −10) [dBm]

0000 hex

7 - 92

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

code

Excep-

tion code

7 Modbus/TCP Communications

 Execution Examples

Execution When RSSI Filter Conditions for the Reader/Writer Are Enabled with the Following Settings

High threshold: -40 dBm (FFD8 hex), Low threshold: -64 dBm (FFC0 hex)

TX: 000000000006FF03C6000003

RX: 000000000009FF03060001FFD8FFC0

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 93

7 Modbus/TCP Communications

SET TRANSMISSION TIME

 Function

This command sets the time to stop the transmission power.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 000B hex FF hex 10 hex C700 hex 0002 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16

Byte

count

04 hex 2 bytes 2 bytes

Parameter Description Default setting

Register address The register address (C700 hex) that specifies setting the transmission times Word count The number of words in the transmission time setting (0002 hex) Byte count The number of bytes in the transmission time setting (04 hex) Stop ti me

Continuous transmission time

*1. If you set a stop time, do not set the continuous transmission time to 0000 hex (unlimited). A command

parameter error will occur if only the stop time or only the continuous transmission time is set to 0.

Protocol identifier Field length Unit

Stop time Continuous trans-

Specify the time to stop the output during RF communications command execution in 4-digit hexadecimal.

0000 hex or 000A to 03E8 hex

(0000 hex = None, or 10 to 1,000) [ms] Specify the maximum time to continuously output radio waves

during RF communications command execution in 4-digit hexadecimal.

0000 hex or 0190 to 2710 hex

(0000 hex = Unlimited, or 400 to 10,000) [ms]

mission time

identifier

Function

code

0000 hex

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex C700 hex 0002 hex

Parameter Description

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Protocol identifier Field length Unit

identifier

Function

code

tifier

Function

code

Excep-

tion code

7 - 94

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

 Execution Examples

Example 1: Execution to Set the Following Times in the Reader/Writer

Stop time: 10 ms (000A hex), Continuous transmission time: 400 ms (0190 hex)

TX: 00000000000BFF10C700000204000A0190

RX: 000000000006FF10C7000002

Example 2: Execution to Set the Following Times in the Reader/Writer

Stop time: None, Continuous transmission time: Unlimited

TX: 00000000000BFF10C70000020400000000

RX: 000000000006FF10C7000002

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 95

7 Modbus/TCP Communications

GET TRANSMISSION TIME

 Function

This command is used to check the transmission times that are set in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex C700 hex 0002 hex

Parameter Description

Word count Always 0002 hex.

Protocol identifier Field length Unit

mission time settings

identifier

Function

code

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0007 hex FF hex 03 hex 04 hex

Byte-9 Byte-10 Byte-11 Byte-12

Stop time Continuous trans-

2 bytes 2 bytes

Parameter Description Default setting

Field length Always 0007 hex. Byte count The number of bytes in the transmission times to read (04 hex) Stop time Gives the time that is set to stop the output during RF communica-

Continuous transmission time

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Protocol identifier Field length Unit

identifier

mission time

Function

code

Byte

count

tions command execution in 4-digit hexadecimal.

0000 hex or 000A to 03E8 hex

(0000 hex = None, or 10 to 1,000) [ms] Gives the maximum time that is set to continuously output radio waves during RF communications command execution in 4-digit hexadecimal.

0000 hex, 0190 to 2710 hex (0000 hex: Unlimited, or 400 to 10,000) [ms]

tifier

Function

code

0000 hex

Excep-

tion code

7 - 96

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

 Execution Examples

Execution When the Following RF Transmission Times Are Set in the Reader/Writer

Stop time: 10 ms (000A hex), Continuous transmission time: 400 ms (0190 hex)

TX: 000000000006FF03C7000002

RX: 000000000007FF0304000A0190

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 97

7 Modbus/TCP Communications

7-6-7 Reader/Writer Setting Commands: Device Settings

SET OPERATION INDICATOR CUSTOM CONDITIONS

 Function

This command sets the colors of the NORM/ERR indicators during command execution.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 000D hex FF hex 10 hex B800 hex 0003 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18

Byte

count

06 hex 2 bytes 2 bytes 2 bytes

Color to flash once

Protocol identifier Field length Unit

Color to flash once for normal command execution

for command error

identifier

Color to flash once

for unstable com-

munications

Function

code

Parameter Description

tions Word count The number of words in the operation indicator custom condition settings (0003 hex) Byte count The number of bytes in the operation indicator custom condition settings (06 hex) Color to flash once

for normal command execution

Specify the color to flash once when V780 command processing ends nor-

mally in 4-digit hexadecimal.

0000 hex: Default

0000 hex

0001 hex: Green

0002 hex: Red

0003 hex: Yellow

0004 hex: Blue

0005 hex: Cyan

0006 hex: Magenta

0007 hex: White

0002 hex

Color to flash once for command error

FFFF hex: Do not flash.

Specify the color to flash once when V780 command processing ends in an

error in 4-digit hexadecimal.

*The color settings are they same as for flashing once for normal command

completion, given above. Color to flash once

for unstable communications

Specify the color to flash once when the results of executing communica-

tions diagnostics indicates that communications are unstable in 4-digit hexa-

decimal.

0003 hex

*The colors settings are they same as for flashing once for normal command

completion, given above.

*1. To prevent the NORM/ERR indicators from lighting at all during command execution, set all of the lighting

conditions to “Do not flash.” You cannot prevent them from lighting by setting only individual conditions.

7 - 98

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 Modbus/TCP Communications

Precautions for Correct Use

If you set all of the conditions to “Do not flash,” the NORM/ERR indicators will not light at all even during operation in Focus Mode.

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 10 hex B800 hex 0003 hex

Parameter Description

Protocol identifier Field length Unit

identifier

Function

code

• Error Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Protocol identifier Field length Unit

identifier

Error Completion on page 7-7.

Function

code

Excep-

tion code

 Execution Examples

Execution to Set Operation Indicator Custom Conditions for the Reader/Writer

Example 1: Execution to Change to the Following Colors for the NORM/ERR Indicators during Command Execution

Normal completion: Cyan, Error completion: Magenta, Unstable communications: White

TX: 00000000000DFF10B800000306000500060007

RX: 000000000006FF10B8000003

7-6 V780 Command Details

7-6-7 Reader/Writer Setting Commands: Device Settings

Example 2: Execution to Change the NORM/ERR Indicators to Not Light at All during Command Execution

TX: 00000000000DFF10B800000306FFFFFFFFFFFF

RX: 000000000006FF10B8000003

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7 - 99

7 Modbus/TCP Communications

GET OPERATION INDICATOR CUSTOM CONDITIONS

 Function

This command is used to check the NORM/ERR indicator lighting colors for communications results that are set in the Reader/Writer.

 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

X X 0000 hex 0006 hex FF hex 03 hex B800 hex 0003 hex

Parameter Description Default setting

Word count The number of words in the operation indicator custom conditions to read (0003

Protocol identifier Field length Unit

settings

hex)

identifier

Function

code

 Response Formats

• Normal Response

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

X X 0000 hex 0009 hex FF hex 03 hex 06 hex

Byte-9 Byte-10 Byte-11 Byte-12 Byte-13 Byte-14

Color to flash once

for normal command execution

2 bytes 2 bytes 2 bytes

Parameter Description

Byte count The number of bytes in the operation indicator custom settings (06 hex) Color to flash once

for normal command execution

Color to flash once for command error

Color to flash once for unstable communications

Protocol identifier Field length Unit

Color to flash once

for command error

Color to flash once

for unstable com-

munications

identifier

Function

code

Byte

count

Gives the color to flash once when V780 command processing ends nor-

mally in 4-digit hexadecimal.

0001 hex: Green

0002 hex: Red

0003 hex: Yellow

0004 hex: Blue

0006 hex: Magenta

0007 hex: White

FFFF hex: Do not flash.

Gives the color to flash once when V780 command processing ends in an

error in 4-digit hexadecimal.

*The colors settings are they same as for flashing once for normal command

completion, given above.

Gives the color to flash once when the results of executing communications

diagnostics indicates that communications are unstable in 4-digit hexadeci-

mal.

*The colors settings are they same as for flashing once for normal command

completion, given above.

0001 hex

0002 hex

0003 hex

7 - 100

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Omron V78068 Users Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

7-1 Outline

7-1-1 Modbus/TCP Communications

7-1-2 Modbus/TCP Function Codes Supported by the V780

7-1-3 Communications System

7-2 Message Formats

7-2-1 Command Format

7-2-2 Response Format for Normal Completion

7-2-3 Response Format for Error Completion

7-2-4 Read Multiple Resisters Command/Response (FC03)

7-2-5 Write Multiple Resisters Command/Response (FC16)

7-2-6 Expanded Command/Response (FC100)

7-3 RF Communications Command Options

7-4 Communications Procedure

7-4-1 Command Communications Procedure

7-4-2 Error Response Reception Procedure

7-5 Commands

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

7-6-2 Multiaccess Communications Commands

7-6-3 Modbus Expansion Communications Commands

7-6-4 Reader/Writer Control Commands

7-6-5 Reader/Writer Setting Commands: Network Settings

7-6-6 Reader/Writer Setting Commands: Communications Settings

7-6-7 Reader/Writer Setting Commands: Device Settings