ST X-NUCLEO-IOD02A1 Bedienungsanleitung

Introduction

The X-NUCLEO-IOD02A1 expansion board for STM32 Nucleo is based on the L6364Q dual channel SIO and IO-Link PHY

device transceiver embedding 50 mA 3.3 V and 5.0 V voltage regulators, DC-DC converter and M-sequence management.

The expansion board provides an affordable and easy-to-use solution for the development of SIO and IO-Link industrial sensor

applications, letting you easily evaluate the L6364Q communication features and robustness.

The X-NUCLEO-IOD02A1 communicates with the STM32 controller via SPI and GPIO pins and it is compatible with the Arduino

UNO R3 (default configuration) and ST morpho (optional, not mounted) connectors (when connected to a NUCLEO-L073RZ or

NUCLEO-G071RB development board).

Communication via IO-Link can be performed in either Multi-byte and Single-byte modes with SPI control of IC configuration and

bidirectional sensor data transmission, or in Transparent mode with SPI control of IC configuration and UART interfacing for

bidirectional sensor data transmission.

The switches on the X-NUCLEO-IOD02A1 conveniently allow you to configure L6364Q and expansion board settings such as

transmission mode and DC-DC converter enable/disable according to application requirements.

You can also perform evaluation of comprehensive industrial sensor modules by connecting the X-NUCLEO-IOD02A1 to the X-

NUCLEO-IKS02A1 sensor shield.

Figure 1. X-NUCLEO-IOD02A1 expansion board

Getting started with the dual channel IO-Link device expansion board for STM32

Nucleo

UM2741

User manual

UM2741 - Rev 1 - September 2020

For further information contact your local STMicroelectronics sales office.

www.st.com

1Getting started

1.1 Overview

The X-NUCLEO-IOD02A1 SIO and IO-Link device board, embedding the L6364Q intelligent dual channel IO-Link

transceiver, is designed to meet the electrical and communication protocol requirements with the IO-Link master.

The expansion board main features are:

• Based on the L6364Q IO-Link device dual transceiver in QFN package with the following main

characteristics:

– 2-channel (CQ and DIO) IO-Link PHY layer

– IO-Link DLL (M-sequence handler and checksum)

– Wake-up detection

– Interrupt diagnostic pin

– SPI and UART interfaces

– 50 mA 3.3 V and 5.0 V linear regulators

– 50 mA adjustable (5.0 ÷ 10.8 V) buck converter

– Overload protection with adjustable intervention threshold

– Overheating protection with adjustable shutdown threshold

– Full reverse polarity on process side

– Ground and VCC wire break protections

– QFN-20L (4 x 4 x 0.9 mm) package

• 5 to 35 V operating voltage range

• Red LED and green LED for status diagnostics

• Radiated Emissions (EM Fields 30 MHz-1 GHz) < 40dB µV/m

• Immunity to conducted disturbance (150 kHz-80 MHz) ≤ 10 V

• Immunity to RF EM Fields (80 MHz-1 GHz) ≤ 10 V/m

• Immunity to RF EM Fields (1 GHz-2.7 GHz) ≤ 3 V/m

• Immunity to SURGE pulse (500 Ohm coupling) ≤ ± 1.2 kV

• Immunity to ESD contact/air ≤ ±3 kV

• Immunity to BURST noise ≤ ±1 kV

• Compatible with STM32 Nucleo development boards

• Equipped with Arduino UNO R3 connectors

• RoHS and WEEE compliant

Important:

The L6364Q is designed for full compliance with EMC immunity levels required by IEC 61131-9 (and IEC 60947-5-2 for surge

pulse). The X-NUCLEO-IOD02A1 expansion board, however, is intended for development purposes and the long net paths

along the Arduino connectors may impact ESD and Burst immunity levels.

1.1.1 Digital section

The digital section consists of the STM32 interface and the digital supply voltages to and from the STM32 Nucleo

development board and the X-NUCLEO-IOD02A1 expansion board via four Arduino UNO R3 connectors.

The on-board L1 inductor and C6 capacitor enable the step-down converter (active by default through SW4 by

closing 1-2) embedded in the L6364Q. The converter also supplies the two L6364Q internal LDOs to reduce

power dissipation, whose output voltage can supply the STM32 Nucleo development board via the Vin net through

JP8 (closed) and CN6.

To supply your development board through an L6364Q LDO:

• set JP5 to E5V for the NUCLEO-L053R8 or NUCLEO-L073RZ development board

• close JP2 between pins 2-3 instead of 1-2 for the NUCLEO-G071RB development board

The digital signal levels are set by the MCU on the STM32 Nucleo development board, so the L6364Q VDIG pin

is connected by SW2 to the proper voltage rail (3.3 V or 5.0 V from CN6).

UM2741

Getting started

UM2741 - Rev 1 page 2/14

To alternatively supply the STM32 Nucleo development boards independently via USB:

•close JP5 to U5V on NUCLEO-L053R8 or NUCLEO-L073RZ development board

• close JP2 pins 1-2 on NUCLEO-G071RB) and ensure J8 is left open

Figure 2. X-NUCLEO-IOD02A1 expansion board

dotted line indicates the digital interface section

The four Arduino UNO R3 connectors also allow the expansion board to communicate with the STM32 Nucleo

development board via the following STM32 peripheral and GPIO resources:

•SPI (CN5, CN8): control interface allowing communication between the MCU (SPI master) and the L6364Q

(SPI slave) to configure the internal L6364Q register or read the status registers. In Single-Byte and Multi-

Byte Communication Modes, the SPI is also used for the data transfer to and from the sensor.

• INT (CN9): interrupt line driven by the L6364Q to alert the MCU of a new event. The MCU reads the status

• UART TX (CN5), UART RX (CN9): interface for sensor data transfer via CQ line used by the MCU in

Transparent Communication Mode. When this mode is selected, JP4 and JP5 jumpers must be closed.

• CTLD (CN8): the L6364Q provides the DIO as a secondary digital input/output pin. In DIO Mode, this pin can

be controlled by SPI (similar to CQ) or in direct mode by CTLD pin (J9 must be closed).

1.1.2 Power section

The power section (CN1, CN2, CN3) includes the power supply voltage (L+, L-), the transmission lines (CQ, DIO),

the output voltage of the step-down converter (VDCDC) and the additional supply rail (DOUT), which is protected

against reverse polarity by the diode embedded in the L6364Q.

CN1 and CN2 are usually connected to the corresponding pins of an IO-Link Master (e.g. P-NUCLEO-IOM01M1)

that controls communication and supplies the X-NUCLEO-IOD02A1 via the L+ rail. The CQ line is used to

exchanged data between IO-Link Master and IO-Link Device. The DIO line is the additional digital channel

typically used in the port class A (type A). L- is the electrical ground reference between the two systems.

CN3 is an additional connector allowing further connections, such as for actuators.

UM2741

Overview

UM2741 - Rev 1 page 3/14

Figure 3. X-NUCLEO-IOD02A1 expansion board

dotted line indicates the power section

1.2 Hardware requirements

The X-NUCLEO-IOD02A1 expansion board is designed to be used with the NUCLEO-L053R8, NUCLEO-L073RZ

or NUCLEO-G071RBSTM32 Nucleo development boards.

To function correctly, the X-NUCLEO-IOD02A1 must be plugged onto the matching Arduino UNO R3 connector

pins on the STM32 Nucleo board as shown below.

Figure 4. X-NUCLEO-IOD02A1 and STM32 Nucleo stack

UM2741

Hardware requirements

UM2741 - Rev 1 page 4/14

1.3 System requirements

To use the STM32 Nucleo development boards with the X-NUCLEO-IOD02A1 expansion board, you need:

•a Windows PC/laptop (Windows 7 or above)

• a type A to mini-B USB cable to connect the STM32 Nucleo board to the PC when using a NUCLEO-

L053R8 or NUCLEO-L073RZ development board

• a type A to micro-B USB cable to connect the STM32 Nucleo board to the PC when using a NUCLEO-

G071RB development board

• the X-CUBE-IOD02 firmware and software package installed on your PC/laptop

• an IO-Link Master (e.g. P-NUCLEO-IOM01M1) with the related control tool (e.g. IO-Link Control Tool when

using the P-NUCLEO-IOM01M1)

1.4 Board setup

Step 1. Check the configuration of JP5 (on NUCLEO-L053R8 or NUCLEO-L073RZ) and set it to “U5V”, or

check the configuration of JP2 (on NUCLEO-G071RB) and close between pins 1-2.

Step 2. Connect the mini-USB (for NUCLEO-L053R8 or NUCLEO-L073RZ) or micro-USB (for NUCLEO-

G071RB) to your PC and the STM32 Nucleo development board.

Step 3. Download the selected firmware onto the microcontroller.

You can use the tools available in your IDE, STM32 LINK Utility or STM32CubeProgrammer and you

can select among different firmware packages (.bin or .hex) according to the MCU (STM32L0x or

STM32G0x), the communication speed (COM2 or COM3) and communication mode (Single-Byte,

Multi-Byte and Transparent). In Single-Byte and Multi-Byte communication modes, JP4 and JP5 remain

open. In Transparent communication mode, JP4 and JP5 must be closed.

Step 4. Disconnect the USB cable from the STM32 Nucleo development board and close JP5 to “E5V” (on

NUCLEO-L053R8 or NUCLEO-L073RZ), or set JP2 from 1-2 to 3-4 (on NUCLEO-G071RB).

In this setup, the STM32 Nucleo development board is supplied by the X-NUCLEO-IOD02A1 and the

step-down converter is active (for SW4 close pins 1-2) to supply Vin (JP8 closed). VDIG must be

referred to 3.3 V rail supplied by the STM32 Nucleo development board (SW1 open, for SW2 close

pins 1-2).

Step 5. Connect the X-NUCLEO-IOD02A1 to the STM32 Nucleo development board through the Arduino

connectors.

Step 6. Connect the X-NUCLEO-IOD02A1 power section (CN1, CN2) to the IO-Link master according to the

schematic and serigraphy (see Section 1.1.2 Power section).

Step 7. Open the control tool of your IO-Link master and upload the IODD XML file (included in the X-CUBE-

IOD02 software package).

You can select between the two IODD files according to the communication speed (COM2 or COM3) of

the firmware downloaded on the STM32 Nucleo development board.

Step 8. Activate your IO-Link Master (usually requires a connection to a 24 V supply rail).

The IO-Link master control tool lets you supply the X-NUCLEO-IOD02A1 L+ line and launch a wake-up

request to initiate communication.

Step 9. Set to the IO-Link port of the Master as digital input and then press the STM32 Nucleo development

board blue button to drive the CQ line status to 24 V/0 V.

UM2741

System requirements

UM2741 - Rev 1 page 5/14

2Schematic diagrams

Figure 5. X-NUCLEO-IOD02A1 circuit schematic (1 of 2)

INT

JP3

PB8

PA9

(Note: I2C_SCL)

(Note: I2C_SDA)

PA6

PA7

PA8

(Note: UART2 TX, ST-LINK)

(Note: UART2 RX, ST-LINK)

100 N.M.

CN5

100

VIN

100

CN9

2121

DIO

default open

CN6

CTLD

IOREF

L-

DI/DQ/2L+

SCLK

NRST

R103

N.M.

MISO

DEFAULT

ALTERNATE

DEFAULT

R105

MISO

VIN

100 N.M.

R104

R117

GND

100 N.M.

UART(RX)

MOSI

ALTERNATE

SSQ-119-04-L-D

MOSI

VCC

100

JP7

100 N.M.

JP4

GND

100

CN3

CN2

DEFAULT

PA4

PB0

ALTERNATE

CN9(3)

PA0 ALTERNATE

PA1

PC0

PC1

SSQ-108-04-F-S

MISO

ALTERNATE

CN1

INT

MISO

CTLD

SSQ-119-04-L-D

L+

JP5

VIN

SSQ-108-04-F-S

PA10

default open

R112

3V3

UART(TX)

MOSI

CN7

default open

R131

CN8

100

VDCDC

100 N.M.

100

INT

AVDD

SSQ-110-04-F-S

R102

MOSI

JP9

N.M.

100

3V3

INT

C/Q

PA3

PC7

PB6

PB5

PA5

CN10

PB4

PB10

PB3

PB9

PA2

default closed

R132

SCLK

default open

R113

SCLK

R114

CTLD

SCLK

R115

R111

DOUT

R101

Arduino Connectors

Morpho Connectors IO-Link Device supply

voltage 7 V - 36 V

100

UART(RX)

SSQ-106-04-F-S

UM2741 - Rev 1 page 6/14

UM2741

Schematic diagrams

Figure 6. X-NUCLEO-IOD02A1 circuit schematic (2 of 2)

PGND

default CLOSE1-2

VIN

SW1

DIO

LOUT

The dc-dc of L6364 supplies

the nucleo by Vin net

(CN6[8])

DOUT

DIO

10nF

VDIG

SW2

SW3

CTLD_PIN

GND_TAB

4GND

470pF

VCC

CTLD

MOSI

4.7k

V5V

CTLD_PIN

VDCDC

BC 12

SCK

3V3

LD1

default CLOSE1-2

INT

LED1

VDCDC

VIN

CTLD

default CLOSE1-2

VDCDC

LED2

V3V3

LOUT

DOUT

0.22uF

LED GREEN

R20

default closed

MISO

470pF

RED LED

SCLK

L6364

VPLUS

DIO

220uH

default ALL open

MISO

3V3 and 5V generated on the STM32 Nucleo board from Vin

MOSI

VDIG

SW4

4.7uF

JP8

VDCDC

CQ 14

LD2

4.7uF

DOUT

INT

2.2uF

V3V3

3V5V

UM2741 - Rev 1 page 7/14

UM2741

Schematic diagrams

3Bill of materials

Table 1. X-NUCLEO-IOD02A1 bill of materials

Item Q.ty Ref. Part/Value Description Manufacturer Order code

1 1 C1 0.22 µF 50 V

±10% X7R 0603 Ceramic capacitor TDK

Corporation CGA3E3X7R1H224K080AD

2 2 C2 C4 470 pF 50 V ±5%

C0G/NP0 0603 Ceramic capacitor Wurth

Electronics Inc. 885012006061

3 2 C3 C5 4.7 µF 10 V ±20%

X7R SMD 0805 Ceramic capacitor Any

4 1 C6 2.2 µF 25 V ±10%

X7R 0805 Ceramic capacitor Würth

Elektronik 885012207079

5 1 C7 10 nF 50 V ±10%

X7R 0603 Ceramic capacitor

Murata

Electronics

North America

GRM188R71H103KA01D

6 2 CN1 CN2 CON2 7.4X7 pitch

3.5 mm 2 pos. Terminal block Wurth

Electronics Inc. 691214110002

7 1 CN3 CON3 10.5X7.4

pitch 3.5mm 3 pos. Terminal block Wurth

Electronics Inc. 691214110003

8 1 CN5

SSQ-110-04-F-S

10 pos. 0.1 gold

PCB

Connector Samtec Inc. SSQ-110-04-F-S

9 2 CN6 CN9 SSQ-108-04-F-S 8

pos. 0.1 gold PCB Connector Samtec Inc. SSQ-108-04-F-S

10 0 CN7 CN10

SSQ-119-04-L-D

38 pos. 01. gold

PCB

Connector (not

mounted) Samtec Inc. SSQ-119-04-L-D

11 1 CN8 SSQ-106-04-F-S 6

pos. 0.1 gold PCB Connector Samtec Inc. SSQ-106-04-F-S

12 10 J1 J2 J3 J4 J5 J6

J7 J8 J9 J10

Jumper_Female

100" gold Jumper

Sullins

Connector

Solutions

QPC02SXGN-RC

13 2 JP3 JP8 JUMPER-con2-

strip-male 2 pos. Jumper Any

14 4 JP4 JP5 JP7 JP9 JUMPER-con2-

strip-male 2 pos. Jumper Any

15 1 L1 220 µH 75 mA

11.8 Ohm ±10% Fixed inductor Würth

Elektronik 744032221

16 1 LD1 20 mA 0603 SMD Green LED Wurth

Electronics Inc. 150060VS75000

17 1 LD2 20 mA 0603 SMD Red LED Wurth

Electronics Inc. 150060RS75000

18 1 R20 4.7 k Ohm ±1%

1/10W 0603 Resistor Yageo RC0603FR-074K7L

19 8

R101 R102 R105

R113 R114 R115

R131 R132

100 Ohm ±1%

1/10W 0603 Resistors Yageo RC0603FR-07100RP

20 0 R103 R104 R111

R112 R117

100 Ohm ±1%

1/10W 0603

Resistors (not

mounted) Yageo RC0603FR-07100RP

21 1 SW1 con3-strip-male 3

pos. Connector header Any

UM2741

Bill of materials

UM2741 - Rev 1 page 8/14

Item Q.ty Ref. Part/Value Description Manufacturer Order code

22 3 SW2 SW3 SW4 con3-strip-male 3

pos. Connector header Any

23 1 U1 20-QFN

IO-Link dual

communication

transceiver device

ST L6364Q

UM2741

Bill of materials

UM2741 - Rev 1 page 9/14

Revision history

Table 2. Document revision history

Date Revision Changes

01-Sep-2020 1 Initial release.

UM2741

UM2741 - Rev 1 page 10/14

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