ST STEVAL-IOD002V1 User manual

Introduction
The STEVAL-IOD002V1 expansion board for STM32 Nucleo is based on the L6364W 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 L6364W communication features and robustness.
The STEVAL-IOD002V1 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 STEVAL-IOD002V1 conveniently allow you to configure L6364W 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 STEVAL-IOD002V1 to the
X-NUCLEO-IKS02A1 sensor shield.
Figure 1. STEVAL-IOD002V1 expansion board
Getting started with the dual channel IO-Link device expansion board compatible
with STM32 Nucleo
UM2822
User manual
UM2822 - Rev 1 - February 2021
For further information contact your local STMicroelectronics sales office.
www.st.com

1Getting started
1.1 Overview
The STEVAL-IOD002V1 SIO and IO-Link device board, embedding the L6364W 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 L6364W IO-Link device dual transceiver 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
– CSP19 (2.5 x 2.5 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 L6364W is designed for full compliance with EMC immunity levels required by IEC 61131-9 (and IEC 60947-5-2 for surge
pulse). The STEVAL-IOD002V1 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 STEVAL-IOD002V1 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 L6364W. The converter also supplies the two L6364W 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 L6364W LDO:
• set JP5 to E5V for the 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 L6364W VDIG pin
is connected by SW2 to the proper voltage rail (3.3 V or 5.0 V from CN6).
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Getting started
UM2822 - Rev 1 page 2/14

To alternatively supply the STM32 Nucleo development boards independently via USB:
• close JP5 to U5V on NUCLEO-L073RZ development board
• close JP2 pins 1-2 on NUCLEO-G071RB and ensure J8 is left open
Figure 2. STEVAL-IOD002V1 expansion board digital section
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 L6364W
(SPI slave) to configure the internal L6364W 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 L6364W to alert the MCU of a new event. The MCU reads the status
register of the L6364W via the SPI interface to determine which event occurred.
• 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 L6364W 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 L6364W.
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 STEVAL-IOD002V1 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.
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Overview
UM2822 - Rev 1 page 3/14

Figure 3. STEVAL-IOD002V1 expansion board power section
Dotted line indicates the power section
1.2 Hardware requirements
The STEVAL-IOD002V1 expansion board is designed to be used with the NUCLEO-L073RZ or NUCLEO-
G071RB STM32 Nucleo development boards.
To function correctly, the STEVAL-IOD002V1 must be plugged onto the matching Arduino UNO R3 connector pins
on the STM32 Nucleo board as shown below.
Figure 4. STEVAL-IOD002V1 and STM32 Nucleo stack
1.3 System requirements
To use the STM32 Nucleo development boards with the STEVAL-IOD002V1 expansion board, you need:
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Hardware requirements
UM2822 - Rev 1 page 4/14

• 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-
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-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-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-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 STEVAL-IOD002V1 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 STEVAL-IOD002V1 to the STM32 Nucleo development board through the Arduino
connectors.
Step 6. Connect the STEVAL-IOD002V1 power section (CN1, CN2) to the IO-Link master according to the
schematic and serigraphy (see 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 STEVAL-IOD002V1 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.
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Board setup
UM2822 - Rev 1 page 5/14

2Schematic diagrams
Figure 5. STEVAL-IOD002V1 circuit schematic (1 of 2)
DEFAULT
Arduino Connectors
PA7
PA9
(Note: I2C_SDA)
PA5
L+
DI / DQ/ 2L+
PC7
PC0
PA2
PB0
PB10
PA4
IO-Link Device supply
voltage 6 V - 35 V
PA6
PB8
DEFAULT
PB5
PC1
PA3
PA1
PB9
PB4
PA8
CN9( 3)
Morpho Connectors
L-
PA10
DEFAULT
(Note: UART2 TX, ST-LINK)
PB6
(Note: UART2 RX, ST-LINK)
C/ Q
PA0
PB3
DEFAULT
ALTERNATE
VCC
DIO
CQ
VDCDC
DOUT
VIN
3V3
5V
CTLD
INT
MOSI
MISO
SS
SCLK
R132 100
CN8
SSQ-106-04-F-S
1
2
3
4
5
6
JP5
default open
JP7
default open
CN3
1
2
3
R112 100 N.M.
R105 100
R131 100
R101 100
JP9
default open
R114 100
CN6
SSQ-108-04-F-S
1
2
3
4
5
6
7
8
R117 100 N.M.
CN2
1
2
R104 100 N.M.
R111 100 N.M.
CN10
SSQ-119-04-L-D
N.M.
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
JP3
default closed
CN9
SSQ-108-04-F-S
1
2
3
4
5
6
7
8
JP4
default open
CN7
SSQ-119-04-L-D
N.M.
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
CN5
SSQ-110-04-F-S
1
2
3
4
5
6
7
8
9
10
R113 100
R103 100 N.M.
R115 100
R102 100
CN1
1
2
IOREF
NRST AVDD
3V3
5V SCLK
GND MISO
GND MOSI
VIN VIN
INT
UART(TX)
UART(RX)
CTLD
INT
MOSI
MISO
SS
SCLK
SCLK
INT
CTLD MISO
SS MOSI
SS SCLK
UART(RX)
PA7
PA9
PA5
PC7
PC0
PA2
PB0
PB10
PA4
PA6
PB8
DEFAULT
(Note: I2C_SCL)
PB5
PC1
PA3
PA1
PB9
PB4
PA8
CN9( 3)
PA10
DEFAULT
PB6
PA0
PB3
DEFAULT
ALTERNATE
VDCDC
DOUT
VIN
3V3
5V
CTLD
INT
MOSI
MISO
SS
SCLK
R132 100
CN8
SSQ-106-04-F-S
1
2
3
4
5
6
JP5
default open
CN3
1
2
3
R112 100 N.M.
R105 100
R131 100
R101 100
JP9
default open
R114 100
CN6
SSQ-108-04-F-S
1
2
3
4
5
6
7
8
R117 100 N.M.
R104 100 N.M.
R111 100 N.M.
CN10
SSQ-119-04-L-D
N.M.
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
CN9
SSQ-108-04-F-S
1
2
3
4
5
6
7
8
JP4
default open
CN7
N.M.
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
CN5
1
2
3
4
5
6
7
8
9
10
R113 100
R103 100 N.M.
R115 100
R102 100
IOREF
NRST AVDD
3V3
5V SCLK
GND MISO
GND MOSI
VIN VIN
INT
UART(TX)
UART(RX)
CTLD
INT
MOSI
MISO
SS
SCLK
SCLK
INT
CTLD MISO
SS MOSI
SS SCLK
UART(RX)
ALTERNATE
ALTERNATE
DEFAULT
ALTERNATE
ALTERNATE
ALTERNATE
UM2822 - Rev 1 page 6/14
UM2822
Schematic diagrams

Figure 6. STEVAL-IOD002V1 circuit schematic (2 of 2)
CQ
The dc-dc of L6364 supplies
the nucleo by Vin net
(CN6[8])
DOUT
DIO
LOUT
VCC
DIO
CQ
CTLD
INT
MOSI
3V3 and 5V generated on the nucleo board from Vin
MISO DOUT
SS
SCLK
5V
3V3
VIN
VDCDC
SW2
1
2
3
default CLOSE1-2
LD2
A
RED LED
C
C2
470pF
SW1
1
2
3
default ALL open
L1
1
220uH
2
R20 4.7k
C1
0.22uF
LD1
AC
LED GREEN
C3
4.7uF
JP8
default closed
C4
470pF
C7
10nF
SW3
1
2
3
default CLOSE1-2
C5
4.7uF
U1
L6364
VDIG
A5
V3V3
B5
V5V
C4
GND
C5 D4 VDCDC
LED1 C3
LED2 D5
LOUT D3
DOUT D2
CTLD B2
VPLUS D1
DIO C1
CQ B1
A1
PGND
A2
INT
MOSI
A3
MISO
B3
SS
A4
SCK
B4
SW4
1
2
3
default CLOSE1-2
C6
2.2uF
CTLD_PIN
CTLD_PIN
VDIG
VDCDC
VIN
V3V3
VDCDC
V5V
UM2822 - Rev 1 page 7/14
UM2822
Schematic diagrams

3Bill of materials
Table 1. STEVAL-IOD002V1 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
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Bill of materials
UM2822 - 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 CSP19
IO-Link dual
communication
transceiver device
IC
ST L6364W
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Bill of materials
UM2822 - Rev 1 page 9/14

Revision history
Table 2. Document revision history
Date Version Changes
03-Feb-2021 1 Initial release.
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