Siemens Simatic rf1070r User manual

Reading out UID with

SIMATIC RF1070R via

serial CMs

SIMATIC Ident / RFID systems / S7-1200 / CM1241

RS232

https://support.industry.siemens.com/cs/ww/en/view/109780625

Siemens

Industry

Online

Support

Table of contents

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

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Table of contents

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

Table of contents

Legal information......................................................................................................... 2

1Introduction........................................................................................................ 4

1.1 Overview............................................................................................... 4

1.2 Principle of operation............................................................................ 5

1.3 Components used ................................................................................ 6

2Engineering of the STEP 7 Program................................................................ 7

2.1 Overview............................................................................................... 7

2.2 Function block "ReadUID".................................................................... 9

2.3 The "RFData" global data block......................................................... 16

2.4 Configuring the CM1241 RS232 communication module.................. 17

2.5 Diagnostics and error messages........................................................ 18

3Installation and commissioning..................................................................... 20

3.1 Hardware configuration...................................................................... 20

3.3 Loading the S7-1200 configuration .................................................... 22

4Operation.......................................................................................................... 23

5Useful information........................................................................................... 26

5.1 Programming via the RS232 interface ............................................... 26

5.1.1 Introduction......................................................................................... 26

5.1.2 Connecting via the CM1241 RS232 communication module............. 26

5.1.3 System jobs........................................................................................ 27

5.2 Project engineering of the S7 station with the CM1241 RS232

communication module ...................................................................... 31

6Appendix .......................................................................................................... 33

6.1 Service and support ........................................................................... 33

6.2 Links and literature............................................................................. 34

6.3 Change documentation...................................................................... 34

1 Introduction

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

1 Introduction

1.1 Overview

Starting point

Companies have been using RFID-based identification card systems for many

years to control access to buildings. The growing need for security and increasing

requirements for documentation call for solutions that can control access to

machines and equipment on a user-specific basis. The SIMATIC

RF1040R/RF1070R readers provide the option of using employee identification

cards even when operating machines. This allows finely graded access concepts to

be implemented or user-specific instructions to be stored - all with one card.

Requirement

A reader at the entrance to a company's factory must read the serial number (UID)

of a card and transmit to a SIMATIC S7 station via the communication interface of

the automation system. You can then use this UID to implement conditions for

access authorization or sharing on a machine in the S7 program.

The following figure provides an overview of the automation task.

Figure 1-1

SIMATIC

PLC Communication

interface RS232

Automation system

RFID

reader

Use case

•Use of a compact controller from the S7-1200 series

•Transmit the UID from the SIMATIC RF1070R reader to the

SIMATIC S7 CPU via the CM1241 RS232 communication module.

Solution approach

The RF1070R reader can be linked to a SIMATIC S7-1200 CPU using the CM1241

RS232 communication module. With this link, communication happens over the

Freeport protocol. The Freeport protocol offers the ability to communicate directly

with the reader.

Note

The RF1040R/RF1070R reader has two interfaces:

•USB

•RS232 serial interface

Only the RS232 serial interface is required for this application example. The USB

interface can be ignored.

1 Introduction

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

Note

Another application example for linking the

SIMATIC RF1040R/RF1070R reader to an S7-1500 station via the RF170C

communication module can be found in the Siemens Industry Online Support

(SIOS) under \4\.

1.2 Principle of operation

Diagram

The following figure schematically illustrates the most important components of the

solution:

Figure 1-2

SIMATICPLC

RFID System

SIMATICRF1070R

Serial coupling/ RS232

SIMATICS7-1200

CM1241RS232

Card with

UID

Implemented functions

The following functions are implemented in the application example:

•Parameter assignment for the point-to-point connection of the communication

module CM1241 RS232.

•Reset SIMATIC RF1070R reader.

•Monitor the antenna field of the RF1070R reader and select the card located

there.

•Receive the UID from the SIMATIC RF1070R reader from the CM1241 RS232

communication module and store it in a data block.

Advantages of this solution

•Save time and money when commissioning your own automation solution.

•Reusable STEP 7 code. This can be easily adapted for extensions.

Note

This application example can also serve as a basis for controlling a SIMATIC

RF1040R/RF1070R reader centrally on an S7-1500 CPU via the CM PtP RS232

BA; or decentralized via an ET 200SP CM PtP.

1 Introduction

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

1.3 Components used

This application example was created with these hardware and software

components:

Table 1-1

Components

Quanti

Item number

Note

Power supply

PM1207

6EP1332-1SH71

24 Volt for S7-1200

CPU 1214C

DC/DC/DC

6ES7214-1AG40-0XB0

A different S7-1200

CPU from the

SIMATIC product

range can also be

used as an

alternative.

Communication module

CM1241 RS232

6ES7241-1AH32-0XB0

Version 2.1 onward

SIMATIC RF1070R reader

6GT2831-6BA50

Alternatively, a

SIMATIC RF1040R

reader can also be

used

(6GT2831-6CA50).

RF1000 connection cable

with open ends for

communication via the

RS232 port

6GT2891-2UH30

LOGO!POWER/1AC/

DC5V/3A

6EP3310-6SB00-0AY0

5 Volt for RF1070R

STEP 7 V16 Professional

6ES7822-1AA06-0YA5

Note

This description also applies to the STEP 7 V15.1 project that you can find on

the same Siemens Industry Online Support page, \2\.

This Application Example consists of the following components:

Table 1-2

Components

File name

Note

Project

"109780625_RF1070R_CM1241_Read

UID_PROJ_V16_V10.zip"

This zipped file contains the

V16 project.

Documentation

"109780625_RF1070R_CM1241_Read

UID_DOCU_V10.pdf"

This description also applies

to the STEP 7 V15.1 project.

2 Engineering of the STEP 7 Program

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

2 Engineering of the STEP 7 Program

2.1 Overview

Introduction

The STEP 7 V16 project contains

•the user program for the S7 CPU with the "ReadUID" function block

•the configuration and project engineering of the CM1241 RS232 "Port_Config"

communication module

Note

In this application example, parameters are assigned for the basic interface

parameters of the CM1241 RS232 dynamically via the user program.

Calling "Port_Config" overwrites the settings of the hardware configuration.

Diagram

The following graphic shows the program structure of the whole STEP 7 V16

project.

Figure 2-1

RFData

ReadUID

FB1

•Port_Config

•Send_P2P

•Receive_P2P

•rfData

•Interface

•diagnostics

Main

OB1

Global

Program blocks

The user program for the SIMATIC S7-1200 CPU consists of the following

elements:

Table 2-1

Element

Symbolic name

Description

OB1

Main

In OB1, the "ReadUID" function block, including

the associated instance data block, is called

cyclically.

2 Engineering of the STEP 7 Program

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

Element

Symbolic name

Description

FB1

"ReadUID"

The function block "ReadUID" contains:

•the configuration of the CM1241 RS232

communication module

•the initialization of the RF1070R reader

•reading and analysis of the card serial

number (UID).

DB1

"InstReadUID"

Instance data block of the "ReadUID" function

block

DB4

"RFData"

Global data block for the storage of

•the most recently read UID

•the status of the "ReadUID" function block

point-to-point

instructions

"Port_Config"

The "Port_Config" instruction (port

configuration)

•dynamically parameterizes basic interface

parameters of the

CM1241 RS232 via the user program

•is called in the "ReadUID" function block.

"Send_P2P"

The instruction "Send_P2P" (send point-to-point

data)

•Sends data to the RF1070R reader

•is called in the "ReadUID" function block.

"Receive_P2P"

The instruction "Receive_P2P" (receive point-to-

point data)

•receives data from the RF1070R reader

•is called in the "ReadUID" function block.

Data type

"typeRFData"

Data type for addressing the configured

CM1241 RS232 communication module.

Data type

"typeDiagnostics"

Data type for saving the error messages that

occur in the "ReadUID" function block:

•status:

Last status code of the interface parameter

"status" of the FB.

•subfunctionStatus:

Status or returned value from internal

instructions or FBs where an error

occurred.

For detailed information, refer to the Online

Help for the instruction in question, or the

documentation of the FB.

•stateNumber:

State of the FB's state machine in which the

error occurred.

2 Engineering of the STEP 7 Program

Reading out UID with SIMATIC RF1070R

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2.2 Function block "ReadUID"

The "ReadUID" function block contains all functionality for communicating with the

RF1070R reader.

The "ReadUID" function block is a custom development for this application

example and is already integrated in the STEP 7 project so that you can adapt it to

your requirements. It is called cyclically in OB1 and automatically automatically

calls the point-to-point instructions "Port_Config", "Send_P2P" and "Receive_P2P".

Function

Function block "ReadUID" realizes

•the configuration of the CM1241 RS232 communication module

•the initialization of the RF1070R reader

•monitoring of the RF1070R reader's antenna field

•selection of the card located in the antenna field

•receipt and analysis of the UID

•output of status and error messages from the block.

This functionality is implemented as a simple sequencer with the following states:

2 Engineering of the STEP 7 Program

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

Figure 2-2

Daten-

Ablage

FB_STATE_POR

T_CONFIG

trigger “reset“ positive edge

FB_STATE_RES

ET_READER

FB_STATE_NO_

PROCESSING

FB_STATE_RES

ET_WAIT

FB_STATE_SET_

LED

FB_STATE_SET_

LED_WAIT

14:

FB_STATE_RES

ET_LED_WAIT

FB_STATE_SELE

CT_CARD

13:

FB_STATE_RESE

T_LED

FB_STATE_SELE

CT_CARD_WAIT

FB_STATE_REA

D_UID

FB_STATE_REA

D_UID_WAIT

12:

FB_STATE_

DISABLING

trigger “enable“ positive edge & Reset done

trigger “enable“ negative edge

RESET:

ENABLING:

DISABLING:

Waiting for

response

Waiting for

response

Waiting for

response

Waiting for

response

Waiting for

response

2 Engineering of the STEP 7 Program

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

Table 2-2

State

Description

RESET

FB_STATE_NO_PROCESSING

Idle process:

Process is doing nothing.

FB_STATE_PORT_CONFIG

Call of the point-to-point instruction

"Port_Config":

The point-to-point instruction

"Port_Config" dynamically parameterizes

basic interface parameters of the

CM1241 RS232 via the user program

(see Chapter 2.4).

FB_STATE_RESET_READER

Reset SIMATIC RF1070C reader.

•Call of the point-to-point instruction

"Send_P2P".

•The request telegram

"syscmd_reset" is sent to the reader.

FB_STATE_RESET_WAIT

•Waiting for response telegram.

•Call of the point-to-point instruction

"Receive_P2P".

•Evaluation of the response telegram:

•The LED of the reader is off.

Back to state 0.

ENABLING

FB_STATE_SET_LED

Set the LED of the SIMATIC RF1070C

reader to green:

•Call of the point-to-point instruction

"Send_P2P".

•The request telegram

"syscmd_set_port" is sent to the

reader.

FB_STATE_SET_LED_WAIT

•Waiting for response telegram.

•Call of the point-to-point instruction

"Receive_P2P".

•Evaluation of the response telegram:

•The LED of the reader is green.

FB_STATE_SELECT_CARD

Select a card located in the antenna field

of the reader.

•Call of the point-to-point instruction

"Send_P2P".

•The request telegram "vhl_select" is

sent to the reader.

FB_STATE_SELECT_CARD_WAIT

•Waiting for response telegram.

•Call of the point-to-point instruction

"Receive_P2P".

•Evaluation of the response telegram:

2 Engineering of the STEP 7 Program

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

FB_STATE_READ_UID

Request the serial number (UID) of the

card in the reader's antenna field:

•Call of the point-to-point instruction

"Send_P2P".

•The request telegram "vhl_get_snr"

is sent to the reader.

FB_STATE_READ_UID_WAIT

•Waiting for response telegram.

•Call of the point-to-point instruction

"Receive_P2P".

•Copy the UID of the card from the

response telegram into the tag

"RFData.rfData.uid".

Back to state 5.

DISABLING

FB_STATE_DISABLING

Disable the function block "ReadUID"

FB_STATE_RESET_LED

Set the SIMATIC RF1070C reader LED

to red:

•Call of the point-to-point instruction

"Send_P2P".

•The request telegram

"syscmd_set_port" is sent to the

reader.

FB_STATE_RESET_LED_WAIT

•Waiting for response telegram.

•Call of the point-to-point instruction

"Receive_P2P".

•Evaluation of the response telegram:

•The LED of the reader is red.

Back to state 0.

2 Engineering of the STEP 7 Program

Reading out UID with SIMATIC RF1070R

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Parameter

The figure and table below show the call interface of the function block "ReadUID".

Figure 2-3

Table 2-3

Icon

Data type

Description

BOOL

Enable input. Only relevant in FDP and LAD

representation

reset

BOOL

Starts the parameterization of the CM1241 RS232

communication module and the resetting of the

SIMATIC RF1070R reader.

enable

BOOL

Starts the read job.

•As long as "enable" remains set, the job handling

is active and new UIDs can be continuously read

and processed.

•The job is ended when the "enable" parameter is

reset.

Note:

Before enable is set the first time, a "reset" must

occur.

rfData

typeRFData

•For addressing the configured CM1241 RS232

communication module.

•Reference to global memory range for receive

data.

ENO

BOOL

Enable output. Only relevant in FDP and LAD

representation

ndr

BOOL

•New UID has been read and stored in the

"rfData" memory range.

•Only TRUE for one cycle.

valid

BOOL

•Is set as long as valid output values are available

and the "enable" input is set.

•Reset as soon as an error is pending or the

"enable" input is reset.

busy

BOOL

•The "ReadUID" function block is active.

2 Engineering of the STEP 7 Program

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

Icon

Data type

Description

•If "enable" is reset or an error occurs, "busy" is

reset.

error

BOOL

•Is set if the function block "ReadUID" finished

with errors.

•The error must be remedied by the user.

•If "enable" is reset, then "error" is also reset.

status

WORD

•Status of the instruction

•Error information ("error"=true)

diagnostics

typeDiagnostics

Error message that appears in the "ReadUID"

function block:

•status:

Last status code of the interface parameter

"status" of the FB.

•subfunctionStatus:

Status or returned value from internal instructions

or FBs where an error occurred.

For detailed information, refer to the Online Help

for the instruction in question, or the

documentation of the FB.

•stateNumber:

State of the FB's state machine in which the error

occurred.

2 Engineering of the STEP 7 Program

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

Signal flow chart

The following figure shows the signal flow chart for the "ReadUID" function block.

Figure 2-4

enable

valid

busy

error

1a) 1b)

2) 2)

reset

ndr 3)

5) 5)

1. With "reset" as "TRUE", "busy" is set and "error" and "valid" are reset.

a. After successfully resetting the reader and when enable is FALSE, "busy"

is reset.

b. After successfully resetting the reader and when "enable" is TRUE, "busy"

and "valid" are set again. Job handling is active again and new data can be

continuously read and processed.

2. With "enable" to TRUE, "busy" and "valid" are set. Job handling is active and

new UIDs can be continuously read and processed.

3. New UID has been read and stored in the "rfData" memory range.

4. With "error" as TRUE, "busy" and "valid" are reset and all functions of the

"ReadUID" function block are stopped.

5. The pending error, which must be remedied by the user, can only be cleared

with a falling edge at "enable".

2 Engineering of the STEP 7 Program

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2.3 The "RFData" global data block

The DB "RFData" contains:

1. The PLC data type "typeRFData":

the input/output parameter "rfData" of the "ReadUID" function block is used for

addressing the configured CM1241 RS232 communication module and saving

the read UID. This parameter needs the PLC data type "typeRFData" as data

type:

–port:

Specifies the communication module used for communication.

"HW identifier" from the device configuration.

–cardType:

Card type of the card in the antenna field.

–uid:

Serial number of the card in the antenna field.

2. the "interface" PLC tags for calling the function block "ReadUID" in OB1,

3. the PLC data type "typeDiagnostics"

the "diagnostics" output parameter of the "ReadUID" function block helps save

error information and requires as a data type the

PLC data type "typeDiagnostics":

–status:

Last status code of the interface parameter "status" of the FB.

–subfunctionStatus:

Status or returned value from internal instructions or FBs where an error

occurred.

For detailed information, refer to the Online Help for the instruction in

question, or the documentation of the FB.

–stateNumber:

State of the FB's state machine in which the error occurred.

Figure 2-5

2 Engineering of the STEP 7 Program

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

2.4 Configuring the CM1241 RS232 communication

module

The SIMATIC RF1070R reader can be connected to a SIMATIC controller with the

help of the CM1241 RS232 communication module and P2P communication

("Send_P2P" and "Receive_P2P").

The communication parameters of the RS232 interface of the SIMATIC RF1070R

reader are set as follows in the factory:

•Transmission speed: 115.2 kbps

•Parity: None

•Data bits: 8

•Stop bits: 1

•Flow control: None.

When connecting the SIMATIC RF1070R reader via the CM1241 RS232, the

communication parameters of the CM must match the communication parameters

of the RF1070R reader.

In this application example, parameters are assigned for the basic interface

parameters of the CM1241 RS232 dynamically via the user program by calling the

point-to-point instruction "Port_Config".

The following figure shows the parameterization of the basic interface parameters

of the CM1241 RS232:

Figure 2-6

•Transfer speed (BAUD)

16#b= 115.2 kbps

•Parity (PARITY):

16#01= none

•Data bits (DATABITS):

16#01= 8 data bits

•Stop bits (STOPBITS):

16#01= 1 stop bit

•Flow control (FLOWCTRL):

16#01= none.

Note

Calling "Port_Config" overwrites the settings of the hardware configuration.

2 Engineering of the STEP 7 Program

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2.5 Diagnostics and error messages

The "ReadUID" function block provides the status of the instruction via the output

parameter "status" and, in the case of an error, various error messages via the

"status" and "diagnostics" output parameters.

Status of the instruction

The following table provides an overview of the instruction status.

Table 2-4

"status"/

"diagnostics.status"

Meaning

16#8400

Reader error. No card has been selected.

16#8601

"Port_Config" error

The status or returned value from the internal instruction can be

found in the tag "diagnostics.subfunctionStatus" (Table 2.6).

16#8602

"Send_P2P" error

The status or returned value from the internal instruction can be

found in the tag "diagnostics.subfunctionStatus" (Table 2.6).

16#8603

"Receive_P2P" error

The status or returned value from the internal instruction can be

found in the tag "diagnostics.subfunctionStatus" (Table 2.6).

"status"

Meaning

16#7000

No job processing active.

16#7001

Initial call when job is started.

16#7002

Second call when job is started.

16#7004

Monitoring of the antenna field of the RF1070R reader.

16#7006

New UID has just been read.

16#0001

The parameterization of the CM1241 RS232 communication

module and resetting of the SIMATIC RF1070R reader have

been completed successfully.

Error messages

The following table provides an overview of the error messages from the

"ReadUID" function block.

Table 2-5

"status"/

"diagnostics.status"

Meaning

16#8400

Reader error. No card has been selected.

16#8601

"Port_Config" error

The status or returned value from the internal instruction can be

found in the tag "diagnostics.subfunctionStatus" (Table 2.6).

16#8602

"Send_P2P" error

The status or returned value from the internal instruction can be

found in the tag "diagnostics.subfunctionStatus" (Table 2.6).

16#8603

"Receive_P2P" error

The status or returned value from the internal instruction can be

found in the tag "diagnostics.subfunctionStatus" (Table 2.6).

2 Engineering of the STEP 7 Program

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

The following table shows the error messages that occurred in the internal point-to-

point instructions "Port_Config", "Send_P2P" and "Receive_P2P".

Table 2-6

"diagnostics.subfunctionStatus"

Point-to-point instruction

16#80xx

Error messages that occurred in the internal point-

to-point instructions "Port_Config", "Send_P2P"

and "Receive_P2P".

Note:

For detailed information, refer to the Online Help

for the instruction in question.

16#81xx

16#82xx

16#83xx

16#89xx

16#8Axx

3 Installation and commissioning

Reading out UID with SIMATIC RF1070R

Article ID: 109780625, V1.0, 09/2020

3 Installation and commissioning

3.1 Hardware configuration

Section 1.3 lists the required hardware components.

CAUTION

Please observe the setup guidelines for the S7-1200 and SIMATIC

RF1070R. Refer to the corresponding device manuals \5\ and \3\.

CAUTION

Only switch on the power supply after you have completed and checked

the assembly!

The following graphic shows the hardware setup of the application.

Figure 3-1

Engineering station

CM1241 RS232 SIMATIC S7-1200 CPUCard with UID SIMATIC RF1070R

serial coupling / RS232

PROFINET IE

STEP 7 V16

The following table provides an overview of all IP addresses used in this example.

Assignment of static IP addresses is assumed.

Table 3-1

Components

IP address

Description

CPU 1214C DC/DC/DC

192.168.0.1

S7-1200 CPU

Engineering Station

192.168.0.10

STEP 7 V16

The subnet mask in all network components is 255.255.255.0.

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Siemens SIMATIC RF1070R User manual

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