BlueBox IDTRONIC HF Manuel utilisateur

BLUEBOX Gen.2 HFM Page 1 of 37

RFID System

BLUEBOX GEN 2

HF MR

COMMUNICATION PROTOCOL

Profibus

BLUEBOX Gen.2 HFM Page 2 of 37

Preface

iDTRONIC GmbH (IDTRONIC) reserves the right to make changes to its

products or services or to discontinue any product or service at any time

without notice. IDTRONIC provides customer assistance in various technical

areas, but does not have full access to data concerning the use and

applications of customer's products. Therefore, IDTRONIC assumes no liability

and is not responsible for customer applications or product or software design

or performance relating to systems or applications incorporating IDTRONIC

products. In addition, IDTRONIC assumes no liability and is not responsible for

infringement of patents and/or any other intellectual or industrial property

rights of third parties, which may result from assistance provided by

IDTRONIC. IDTRONIC products are not designed, intended, authorized or

warranted to be suitable for life support applications or any other life critical

applications that could involve potential risk of death, personal injury or severe

property or environmental damage. With the edition of this document, all

previous editions become void. Indications made in this manual may be

changed without previous notice. Composition of the information in this

manual has been done to the best of our knowledge. IDTRONIC does not

guarantee the correctness and completeness of the details given in this manual

and may not be held liable for damages ensuing from incorrect or incomplete

information. Since, despite all our efforts, errors may not be completely

avoided, we are always grateful for your useful tips. The installation

instructions given in this manual are based on advantageous boundary

conditions. IDTRONIC does not give any guarantee promise for perfect function

in cross environments. The companies or products mentioned in this document

might be brands or brand names of the different suppliers or their subsidiaries

in any country. This document may be downloaded onto a computer, stored

and duplicated as necessary to support the use of the related IDTRONIC

products. Any other type of duplication, circulation or storage on data carriers

in any manner not authorized by IDTRONIC represents a violation of the

applicable copyright laws and shall be prosecuted.

Safety Instructions / Warning - Read before start-up!

•The device may only be used for the intended purpose designed by the

manufacturer. The operation manual should be conveniently kept available

at all times for each user.

•Unauthorized changes and the use of spare parts and additional devices that

have not been sold or recommended by the manufacturer may cause fire,

electric shocks or injuries. Such unauthorized measures shall exclude any

liability by the manufacturer.

•The liability-prescriptions of the manufacturer in the issue valid at the time

of purchase are valid for the device. The manufacturer shall not be held

legally responsible for inaccuracies, errors, or omissions in the manual or

automatically set parameters for a device or for an incorrect application of a

device.

BLUEBOX Gen.2 HFM Page 3 of 37

•Repairs may be executed by the manufacturer only.

•Only qualified personnel should carry out installation, operation, and

maintenance procedures.

•Use of the device and its installation must be in accordance with national

legal requirements and local electrical codes.

•When working on devices the valid safety regulations must be observed.

Reference table of the devices object of this manual:

Code Communication

Interface Antenna

5233HM Profibus One External Channel

BLUEBOX Gen.2 HFM Page 4 of 37

Table of Contents

Preface .................................................................................................. 2

1Introduction...................................................................................... 5

2Operating Features............................................................................ 7

3Communication Features .................................................................... 9

3.1 Introduction ................................................................................ 9

3.2 Device Reset ..............................................................................13

3.3 Device Serial Number Reading......................................................14

3.4 FW Version Reading ....................................................................14

3.5 Temperature Reading ..................................................................15

3.6 Date/Time Reading .....................................................................16

3.7 Date/Time Programming..............................................................16

3.8 Profibus Network Parameters Programming....................................17

3.9 Profibus Network Parameters Reading ...........................................17

3.10 Operating Parameters Programming...........................................18

3.11 Operating Parameters Reading...................................................19

3.12 Default parameters programming...............................................20

3.13 Digital Output Activation ...........................................................20

3.14 Status Reading ........................................................................20

3.15 RF Deactivation........................................................................21

3.16 RF Activation ...........................................................................21

3.17 Data request ...........................................................................22

3.18 Queue data request..................................................................22

3.19 ISO 15963 Transponders ‘Inventory’ Command ...........................23

3.20 Reading a Data Block of an ISO 15693 Transponder.....................24

3.21 Writing a Data Block of an ISO 15693 Transponder ......................25

3.22 Locking a Data Block of an ISO 15693 Transponder......................26

3.23 ISO 15963 Transponder ‘Get System Info’ Command ...................26

3.24 ISO 15963 Transponder ‘General Protocol’ Command ...................28

A. Supported Transponders.................................................................30

B. ‘.GSD’ File.....................................................................................32

BLUEBOX Gen.2 HFM Page 5 of 37

1Introduction

The BLUEBOX GEN2 INDUSTRIAL HF hereinafter named BLUEBOX is a

read/write RFID device for industrial application (item 5233HM) that

communicates with a ‘host’ system (typically a PLC) through a PROFIBUS DP

serial line. The BLUEBOX acts as a joint through a set of commands between

the host system and the rfid tag/s (or transponder/s) present near the

antenna/s.

PROFIBUS DP (Dezentrale Pheripherie) was developed for high-speed

communication between central controllers (typically PLC) and remote devices

(I/O, drives, actuators, sensors, ...).

More devices can be connected on the bus, each one has a different address

(the address is a configurable parameter). Once configured, the

communication with devices is cyclic.

Therefore the BLUEBOX is a remote device (‘slave’) with an input buffer and

an output buffer (the length of the buffers is a configurable parameter).

Similarly, in order to talk to the BLUEBOX, the PLC (‘master’) has an output

buffer (same size of the corresponding input buffer of the BLUEBOX) and an

input buffer (same size of the corresponding output buffer of the BLUEBOX).

The input buffer of the BLUEBOX can only be modified by the ‘master’ (PLC)

while the output buffer of the BLUEBOX can only be modified by the ‘slave’

that is the BLUEBOX. The aim of the cyclic communication is to keep up to

date the corresponding buffers at the ‘master’ side and at the ‘slave’ side.

At the application level, a specific protocol has been defined for enabling the

delivery of control messages from the PLC to the BLUEBOX and reply

messages from the BLUEBOX to the PLC.

For the developers: a .GSD (Generic Station Description) is provided that

defines the characteristics of the device and is necessary for the configuration

of the profibus network.

BLUEBOX Gen.2 HFM Page 6 of 37

An USB connection, working as virtual com, is also available on the BLUEBOX

and is principally used as service port to configure the operating parameters

and to update the firmware of the device, the ‘BLUEBOX show’ program of the

SDK is foreseen to explicate these operations.

Furthermore the BLUEBOX is able to handle 2 channels of digital I/O; each

channel can be used as output to drive a low side load or as input either driven

by a ‘pnp’ output or by a ‘clean’ contact. Warning, when the I/O is used as

input, do not use it also as output to avoid conflicts! The BLUEBOX is available

with 1 external RF antenna (item 5233HM).

Compared to the BLUEBOX GEN2 INDUSTRIAL HF SR device (item 5233H),

the BLUEBOX GEN2 INDUSTRIAL HF MR device (item 5233HM) differs for

the following reasons:

•increased RF power which leads to higher performance in terms of

read/write distance;

•only the ISO 15693 transponders are supported;

•specific 50 ohm antennas with an IP65 industrial TNC connector have to

be used;

•ability to set the RF power level and mode of communication

transponder/reader (ASK with 1 subcarrier / FSK with 2 subcarriers).

‘master’

out

buffer

‘slave’

in buffer

‘slave’

out

buffer

‘master’

in buffer

PLC

BLUEBOX

PROFIBUS DP

BLUEBOX Gen.2 HFM Page 7 of 37

2Operating Features

Supported transponders (or tags) and relative associated functions are

described in annexe A.

In ‘continuous’ mode the BLUEBOX is characterized by the coexistence of 2

‘parallel’ and asynchronous activities: the tag identification consisting of a

repetitive inventory of tags through an anticollision loop and the

communication with the ‘host’ system. The ‘continuous’ identification activity

interacts with the communication activity through a buffer that contains the

code of the last identified tags or that is empty indicating the absence of tags.

Due to synchronization and filtering reasons, the buffer is handled for each tag

by a parameter defined as ‘hold time’ same as ‘filter time’ defined below (to be

set in the range of 0 … 99 seconds or 0 ... 99 minutes, default value 1 second)

and allows to extend ‘artificially’ the presence of the tag after it leaves the

antenna’s influence area; this behavior is observable looking at the antenna

led status that is ‘on’ indicating the presence of tag/s and also through the

activation of the digital output channel 1 (if its ‘automatic’ management is

enabled by the flag defined in the general parameters). Through the command

‘data request’ it is possible to get the data contained in the buffer (tag/s ID).

The BLUEBOX handles also a 31 elements FIFO queue which is combined with

the ‘filter time’ general parameter (to be set in a range of 0 … 99 seconds or 0

... 99 minutes, default value 1 second) that prevents the queue saturation in

case of a tag ‘continuous’ presence. At the end of each inventory session, for

each indentified tag, the BLUEBOX compares it to the list of previous read

transponder/s. If the considered transponder do not belong to the list, it is

defined as ‘new’, its code (tag ID) will be inserted in the queue and the filter

time will be started. Otherwise (the transponder belong to the list), the

BLUEBOX verifies if the filter time is expired. In this case (the filter time is

expired), the transponder is defined as ‘new’ and will be processed as

described above, otherwise only the filter time will be rearmed. Through the

command ‘queue data request’ and the relative ‘ack’, it is possible to get the

data contained in the queue (tag ID) and unload it.

Every time that a new transponder is identified, the buzzer will be activated for

250ms if its ‘automatic’ management is enabled by the flag defined in the

operating parameters.

In ‘continuous’ mode the BLUEBOX can be configured to obtain the behavior

of a ‘spontaneous’ reader that will send a message on the RS232 serial line

and on the Ethernet channel every time that a ‘new’ transponder is identified.

The BLUEBOX allows the execution of ‘on request’ functions. During the

execution of these functions, the ‘continuous’ identification activity will be

suspended temporarily; the involved commands are relative to device

configuration and tag read/write specific activities.

If not required, the ‘continuous’ identification activity can be disabled through

a flag defined in the general parameters. In this case, the BLUEBOX will only

execute the ‘on request’ commands already defined above.

BLUEBOX Gen.2 HFM Page 8 of 37

List of configurable operating parameters:

Parameters Range / Choice Default

Hold time 0 ... 99 seconds 1 sec

Filter time 0 ... 99 seconds

0 ... 99 minutes 1 sec

Buzzer Disabled, enabled Enabled

Output channel 1 Disabled, enabled Disabled

‘Continuous mode’ Disabled, enabled Enabled

List of configurable profibus network parameters:

Parameters Range / Choice Default

Profibus address 1 ... 126 126

Profibus buffer length 8, 12, 16, 20, 32, 64 16

BLUEBOX Gen.2 HFM Page 9 of 37

3Communication Features

3.1 Introduction

There are two types of data packets used in the communication:

•Outgoing data packets from the ‘master’ (PLC) to the ‘slave’ in order to

send a command or an answer to the BLUEBOX

•Incoming data packets to the ‘master’ (PLC) from the ‘slave’ (BLUEBOX)

carrying for example the answer to a command

In the following example, a buffer length of 16 bytes is supposed.

The outgoing data packets from the ‘master’ assume the following structure:

Header

1° Byte 2° Byte Max 14 Byte

7 6 5 4 3 2 1 0 Length Data

Req tx

Ack rx

The outgoing data packet consists of a header (first two bytes) and a data

buffer of 14 bytes.

The first byte of the header consists of the following flags:

•Bit 7 … 3: Not used

•Bit 2: More, set to ‘1’ means that the message is composed of several

data packets

•Bit 1: Ack rx, reception acknowledge

•Bit 0: Req tx, transmission request

The second byte (Length) of the header specifies the number of data bytes in

the data buffer (max 14 data bytes in this example).

BLUEBOX Gen.2 HFM Page 10 of 37

The incoming data packets to the ‘master’ assume the following structure:

Header

1° Byte 2° Byte Max 14 Byte

7 6 5 4 3 2 1 0 Length Data

Ack tx

Req rx

Busy

Reply Ack

Reply Nak

Tag present

Alive (toggle)

Also the incoming data packet consists of a header (first two bytes) and a data

buffer of 14 bytes in this example.

The first byte of the header consists of the following flags:

•Bit 7: Alive, toggles every second and means that the ‘slave’ is running

correctly

•Bit 6: Tag present, set to ‘1’ by the ‘slave’ means that a transponder is

present near the antenna/s (detected by the ‘continuous’ identification

activity)

•Bit 5: Reply Nak, set to ‘1’ by the ‘slave’ means that an error has

occured

•Bit 4: Reply Ack, set to ‘1’ by the ‘slave’ means that the received

command has been processed

•Bit 3: Busy, set to ‘1’ by the ‘slave’ means that the ‘slave’ is processing

the command message from the ‘master’

•Bit 2: More, set to ‘1’ by the ‘slave’ means that the message is composed

of several data packets

•Bit 1: Req rx, reception request (from ‘slave’)

•Bit 0: Ack tx, transmission acknowledge

The second byte (Length) of the header specifies the number of data bytes in

the data buffer (max 14 data bytes).

The messages consist of one or more data packets. If the length of the

message is shorter than 14 bytes, the message will be composed of only 1

data packet. If the length of the message is bigger than 14 bytes, the message

will be composed of more than 1 data packet; in this case the header of all the

transmitted data packets, apart the last one, will present at ‘1’ the flag ‘More’

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