ST UM2414 Manuale utente
Introduction
The STEVAL-IOM001V1 industrial IO-Link physical master evaluation board is based on the L6360 transceiver and is designed
to comply with applicable industrial EMC standards.
It provides an affordable and easy-to-use development platform for single-port to quad-port IO-Link master applications. By
default, the STEVAL-IOM001V1 is configured as IO-Link Port 1.
The evaluation board can be connected to an STM32 Nucleo development board like the NUCLEO-F446RE or NUCLEO-
F401RE via its ST morpho connectors.
You can obtain the board individually or as part of the P-NUCLEO-IOM01M1 development system, which includes a STEVAL-
IOM001V1 evaluation board and a NUCLEO-F446RE development board flashed with IO-Link stack (v1.1).
Figure 1. STEVAL-IOM001V1 IO-Link physical master evaluation board
Getting started with the IO-Link PHY master evaluation board with STM32 Nucleo
compatibility
UM2414
User manual
UM2414 - Rev 2 - April 2021
For further information contact your local STMicroelectronics sales office.
www.st.com
1Hardware and software requirements
The STEVAL-IOM001V1 is designed to be connected to one of the following STM32 Nucleo boards:
•NUCLEO-F446RE
•NUCLEO-F401RE
Figure 2. STEVAL-IOM001V1 plus STM32 Nucleo board
To complete the system, you need the following items:
•a Windows® (version 7 or above) PC
• a USB type A to mini-B USB cable to connect the STM32 Nucleo to the PC
• the STSW-IOM001 firmware and software package installed on the user PC
• a 24 V power supply
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Hardware and software requirements
UM2414 - Rev 2 page 2/22
2STEVAL-IOM001V1 evaluation board overview
The IO-Link PHY master evaluation board is equipped with the L6360 transceiver featuring the IO-Link physical
master and an IPS161H single high-side switch with extended diagnostic features (for safety integrity level SIL2-
and SIL3-compliant systems) to supply an external high capacitance IO-Link load on the L+ rail.
2.1 Features
• IO-Link master PHY based on L6360
•Interrupt diagnostics pin
• I²C and UART interface
• SPI (slave) interface
• 65 mA selectable (3.3 or 5.0 V) linear regulator
• CQ (push-pull) and L+ (high side) switches
• IQ additional IEC61131-2 type 1 digital input
• L+ and CQ overload and overheating protections with non-dissipative cut-off function
• QFN-26L (3.5x5x1 mm) package
• Operating voltage range from 18 to 32.5 V
• Additional high side switch for L+ heavy loads (IPS161H)
• LEDs for status and diagnostics
• Ground and VCC wire break protections
• EMC compliance with IEC61000-4-2, IEC61000-4-3, IEC61000-4-5
• Equipped with ST morpho connectors
• CE certified
• RoHS and China RoHS compliant
2.2 Digital section
The digital section is associated with the STM32 interface and the signals to control the L6360 IO-Link transceiver
and IPS161H high side switch.
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STEVAL-IOM001V1 evaluation board overview
UM2414 - Rev 2 page 3/22
Figure 3. STEVAL-IOM001V1 expansion board digital interface components
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Digital section
UM2414 - Rev 2 page 4/22
2.2.1 ST morpho connectors
The STEVAL-IOM001V1 communicates with the STM32 Nucleo board microcontroller and accesses the STM32
peripheral and GPIO resources through ST morpho connectors CN7 and CN10. These connectors also transfer
digital supply voltages between the STM32 Nucleo development board and the STEVAL-IOM001V1 expansion
board.
The following tables map the correspondence between the ST morpho connectors and microcontroller signals.
Table 1. Digital signals on CN7
Connector pin Signal STM32F4 port Drop jumper Notes
8, 19, 20, 22 GND - - -
24 VIN - - -
21
OUTCQ
PB7
R129
Not mounted
OL-OFF R170
28
ENCQ
PA0
R103 Not mounted
INCQ R115 Not mounted
30
ENL+
PA1
R104 Not mounted
OUTCQ R119 Not mounted
32 IRQ PA4 R7 Mounted
34 IRQ PB0 R117 Not mounted
35 ENL+ PC2 R124 Not mounted
36 RST PC1 R108 Not mounted
37 IRQ PC3 R137 Not mounted
38 ENCQ PC0 R3 Mounted
Table 2. Digital signals on CN10
Connector pin Signal STM32F4 port Drop jumper Notes
1 OUTIQ PC9 R116 Not mounted
2 ENCQ PC8 R133 Not mounted
3 SCL PB8 R1 Mounted
4 INCQ PC6 R134 Not mounted
5 SDA PB9 R2 Mounted
6 OUTCQ PC5 R139 Not mounted
9, 20, 32 GND - - -
11 ENCQ PA5 R143 Not mounted
13 ENL+ PA6 R4 Mounted
15 L+_ON PA7 R163 Not mounted
17 OUTIQ PB6 R106 Not mounted
19 OUTCQ PC7 R109 Not mounted
21 INCQ PA9 R5 Mounted
22 L+ ON PB2 R164 Not mounted
23
SCL
PA8
R111
Not mounted
ENL+ R114
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Digital section
UM2414 - Rev 2 page 5/22
Connector pin Signal STM32F4 port Drop jumper Notes
24 IRQ PB1 R107 Not mounted
25
SCL
PB10
R161
Not mounted
INCQ R105
26 L+ ON PB15 R165 Not mounted
27
L+_ON
PB4
R162 Mounted
SDA R122 Not mounted
28 OUTIQ PB14 R126 Not mounted
29 RST PB5 R8 Mounted
30 OUTIQ PB13 R136 Not mounted
31 SDA PB3 R132 Not mounted
33 OUTCQ PA10 R9 Mounted
34 ENL+ PC4 R135 Not mounted
The table below describes the functionality of each signal:
Table 3. Description of digital signals
Signal Functionality
ENL+ GPIO (out) controlling the ENL+ pin of L6360 (U1)
ENCQ GPIO (out) controlling the ENCQ pin of L6360 (U1)
INCQ UART (TX) controlling INCQ pin of L6360 (U1)
OUTCQ UART (RX) controlling OUTCQ pin of L6360 (U1)
SCL Serial clock line controlling I2C SCL pin of L6360 (U1)
SDA Serial data line controlling I2C SDA pin of L6360 (U1)
RST GPIO (out) controlling the RST pin of L6360 (U1)
IRQ GPIO (externa event) controlling the IRQ pin of L6360 (U1)
OUTIQ(1) Not used by default, it can be configured on a UART (RX) to control the OUTIQ pin of L6360 (U1)
L+_ON GPIO (out) controlling the IN pin of IPS161H (U2)
OL-OFF GPIO (input) controlling the DIAG pin of IPS161H (U2)
1. Optional.
RELATED LINKS
2.3 IO-Link port configuration on page 8
2.2.2 I2C Port address
The switches SW0, SW1 and SW2 on the STEVAL-IOM001V1 evaluation board are used to configure the I2C
address pins of the L6360 (SA0, SA1, SA2) mounted on the board. By default, the I2C address is set to 0x00:
• pins 1-2 of SW0/1/2 closed: SA0 = SA1 = SA2 = GND
When multiple STEVAL-IOM001V1 evaluation boards are stacked, each board must be set with a different I2C
address. You must set the I2C address in the I2C commands correctly for the SAx configuration of the L6360 to
be controlled.
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Digital section
UM2414 - Rev 2 page 6/22
Table 4. I2C address setting
SW2 SW1 SW0 I2C Address
0 0 0 0x00 (default)
0 0 1 0x01
0 1 0 0x02
0 1 1 0x03
1 0 0 0x04
1 0 1 0x05
1 1 0 0x06
1 1 1 0x07
RELATED LINKS
2.3 IO-Link port configuration on page 8
2.2.3 Reset button
The STEVAL-IOM001V1 evaluation board has a push button reset to force a reset of the internal status and
registers of the L6360.
RELATED LINKS
L6360 datasheet for RST pin details
2.2.4 LEDs
The following table summarizes the main functions of the status indication LEDs on the STEVAL-IOM001V1
evaluation board.
Table 5. LED functionality
LED Color Function
D10 GREEN Turns on when the voltage regulator integrated in the L6360 (pin VDD) is active.
D11 RED Turns on when the L6360 forces the IRQ pin low.
D12 YELLOW
Turns on/off according to the settings in the LED1 and LED2 registers of the L6360 IC.
D13 YELLOW
D16 RED Turns on when the DIAG pin of the IPS161H is activated (open load or fault events).
2.2.5 SW3, SW4 and SW5 digital switches
The STEVAL-IOM001V1 evaluation board includes three additional 3-way switches for quick and easy evaluation.
Table 6. SW3, SW4 and SW5 functionality
Switch Configuration Function
SW3
CLOSE 1-2 VDD pin of L6360 supplies 5.0V
CLOSE 2-3 (default) VDD pin of L6360 supplies 3.3V
SW4
CLOSE 1-2 (default) ENCQ pin of L6360 (U1) controlled by ENCQ signal.
CLOSE 2-3 ENCQ pin of L6360 (U1) connected to VDD.
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Digital section
UM2414 - Rev 2 page 7/22
Switch Configuration Function
SW5
CLOSE 1-2 (default) ENL+ pin of L6360 (U1) controlled by ENL+ signal.
CLOSE 2-3 ENL+ pin of L6360 (U1) connected to VDD.
RELATED LINKS
2.3 IO-Link port configuration on page 8
2.3 IO-Link port configuration
You can stack as many as four STEVAL-IOM001V1 evaluation boards to create up to a quad-port IO-Link master;
the additional ports (from 2 to 4) must be configured according to the following table to avoid conflicts between
I2C addresses and driving signals.
Table 7. IO-Link port configuration
SIGNAL SOLDER BRIDGE
TO UNMOUNT
IO-Link PORT-2
(I2C address: see Table 4)
IO-Link PORT-3
(I2C address: see Table 4)
IO-Link PORT-4
(I2C address: see Table 4)
SOLDER BRIDGE
TO MOUNT CN[pin] SOLDER BRIDGE
TO MOUNT CN[pin] SOLDER BRIDGE
TO MOUNT CN[pin]
ENCQ R3 R143 CN5[6] R123 CN10[12] R133 CN10[2]
INCQ R5 R115 CN8[1] R105 CN9[7] R134 CN10[4]
OUTCQ R9 R119 CN8[2] R139 CN10[6] R109 CN5[2]
ENL+ R4 R114 CN9[8] R124 CN7[35] R135 CN10[34]
RST R8 R108 CN8[5] R128 CN10[16] R138 CN10[14]
OUTIQ R106
(1)
R116
(1) CN10[1] R126
(1) CN10[30] R136
(1) CN10[28]
IRQ R7 R117 CN8[4] R107 CN10[24] R137 CN7[37]
L+ON R162 R163 CN5[4] R164 CN10[22] R165 CN10[26]
1. Modification is only required if OUTIQ is used.
RELATED LINKS
2.2.1 ST morpho connectors on page 5
2.2.2 I2C Port address on page 6
2.2.5 SW3, SW4 and SW5 digital switches on page 7
2.4 Supply section
The power to run the STEVAL-IOM001V1 evaluation board plus STM32 Nucleo development board can either be
supplied through the mini-USB connector CN1 on the STM32 Nucleo (set JP5 on the U5V position) or through the
STEVAL-IOM001V1 evaluation board.
To power the system through the evaluation board:
1. On the STM32 Nucleo development board: close jumper JP5 on position E5V (close pins 2 and 3)
2. On the STEVAL-IOM001V1 expansion board: connect a 7 V to 12 V supply at screw connector CN2.
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IO-Link port configuration
UM2414 - Rev 2 page 8/22
1. Default, via the CN1 pin (SW6, pins 2-3 closed):
–This is the same voltage rail that supplies the L6360 IO-Link transceiver and the IPS161H high side
switch are supplied through CN1.
2. An alternative power supply (SW6, pins 1-2):
Connector CN3 can be used to connect the STEVAL-IOM001V1 to a remote IO-Link device according to the
IO-Link specifications for port class A/type A and class B/Type B.
The board can supply the remote device through the L+ line, which can be controlled by the L+ switch in the
L6360 (ENL+ signal) IC or through the IPS161H (L+_ON signal). The CQ line of CN3 is directly connected to pins
CQO and CQI on the L6360 device.
By default (Type A, SW7 close 1-2), the DI/DQ line of the IO-Link cable is connected to the additional digital input
IQ on the L6360.
Alternatively (Type B, SW7 close 2-3), pin 2 of CN3 can supply the second L+ rail (typically used for actuators).
For Type B connections, CN4 is use to connect the power supply for 2nd L+ and 2nd ground.
Table 8. CN1, CN2, CN3, CN4 details
CONNECTOR PIN SIGNAL
CN1
1 GND
2Default (SW6 close2-3): connected to pin 3 of CN1.
Alternate (SW6 close1-2): separated supply for VH pin of L6360
3 Supply (≤32.5V) for L6360 and IPS161H
CN2
1 Alternative supply (between 7 and 12V) for STM32 Nucleo board
2 GND
CN3
1 IO-Link L+ supply rail for remote device.
2Default (Type A, SW7 close 1-2): IO-Link DI/DQ line.
Alternate (Type B SW7 close 2-3): IO-Link 2nd L+ supply rail.
3 GND
4 IO-Link CQ line.
5 2nd ground (reference of 2nd L+ supply rail), Type B only.
CN4
1 Input pin for 2nd L+ power supply.
2 Input pin for 2nd ground.
2.5 Protection features
The protection section implements reverse polarity protection and Electromagnetic compatibility (EMC) noise
protection according to the industrial standards IEC61000-4-2 (ESD), IEC61000-4-4 (Burst) and IEC61000-4-5
(Surge).
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Protection features
UM2414 - Rev 2 page 10/22
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