Weidmüller WEIDOS-MKR1010-A1 User manual

WEIDOS-MKR1010-A1
4000003853
WEIDOS-ESP32-A1
4000003857
WEIDOS-MKR1010-LORA-A1
4000003854
WEIDOS- ESP32-LORA-A1
4000003858
WEIDOS-MKR1010-NBIOT-A1
4000003855
WEIDOS- ESP32-NBIOT-A1
4000003859
WEIDOS Controllers
Manual
Let’s connect

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Prerequisite:
Software:
•Arduino IDE Platform Version 1.8.15 or above
•USB Drivers for WEIDOS-ESP32-A1 series
Hardware:
•External Power Supply unit (12/24Vdc)
•Micro USB type B to USB converter

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Revision history
Version
Date
Change log
Author
00
2022-07
Release version
-
Intended Audience
This User Guide is intended for the following audience:
•Persons in charge of introducing automation devices.
•Persons who design automation systems.
•Persons who install or connect automation devices.
•Persons who manage working automation installation.
Contact
Weidmüller, S.A.
Pol. Ind. Sudoeste Calle Narcís Monturiol 11-13
08960 Sant Just Desvern (Barcelona)
Teléfono [phone]
[e-mail]
www.weidmueller.com
For further support please contact your local sales representative.

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Preface
Application Considerations and Warranty
Read and Understand this Manual
Please read and understand this manual before using these products. Please, also consult your comments or
questions before first use.
Application Consideration
THE PRODUCTS CONTAINED IN THIS DOCUMENT ARE NOT SAFETY RATED. THEY SHOULD NOT BE RELIED
UPON AS A SAFETY COMPONENT OR PROTECTIVE DEVICE FOR ENSURING SAFETY OF PERSONS, AS THEY ARE
NOT RATED OR DESIGNED FOR SUCH PURPOSES.
Please know and observe all prohibitions of use applicable to the products.
FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESSIGNED TO ADDRESS THE RISKS, NEVER USE THESE PRODUCTS.
NEVER USE THESE PRODUCTS BEFORE THEY ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE
WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
The manufacturer shall not be responsible for conformity with any codes, regulations or standards that apply
to the combination of products in the customer’s application or use of the product.
The following are some examples of applications for which particular attention must be given. This is not
intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses
may be suitable for the products:
•Systems, machines, and equipment that could present a risk to life or property.
•Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical
equipment, amusement machines, vehicles, safety equipment, and installation subject to separate
industry or government regulations.
•Outdoor uses involving potential chemical contamination or electrical interference, or conditions or
uses not described in this document.
At the customer’s request, the manufacturer will provide applicable third-party certification documents
identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient
for a complete determination of the suitability of the products in combination with the system, machine,
product, or other application or use.

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Disclaimers
Weights and Dimensions
Dimensions and weights are nominal, and they are not used for manufacturing purposes, even when
tolerances are shown.
Performance Data
The performance data given in this manual is provided as a guide for the user in determining suitability and
does not constitute a warranty. It may represent the result of manufacturer’s test conditions, and the users
most correlate it to actual application requirements. Actual performance is subject to the manufacturer
Warranty and Limitations of Liability.
Errors and Omissions
The information in this document has been carefully checked and is believed to be accurate; however, no
responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.
The control and drive components of the devices are approved for industrial and commercial use in industrial
line supplies. Their use in public line supplies requires a different configuration and/or additional measures.
These components may only be operated in closed housings or in higher-level control cabinets with
protective covers that are closed, and when all of the protective devices are used. These components may
only be handled by qualified and trained technical personnel who are knowledgeable and observe all of the
safety information and instructions on the components and in the associated technical user documentation.
When carrying out a risk assessment of a machine in accordance with the EU Machinery Directive, the
machine manufacturer must consider the following residual risks associated with the control and drive
components of a PDS.
1. Unintentional movements of driven machine components during commissioning, operation, maintenance,
and repairs caused by, for example: − Hardware defects and/or software errors in the sensors, controllers,
actuators, and connection technology − Response times of the controller and drive − Operating and/or
ambient conditions not within the scope of the specification − Condensation / conductive contamination −
Parameterization, programming, cabling, and installation errors − Use of radio devices / cellular phones in
the immediate vicinity of the controller − External influences / damage.
2. Exceptional temperatures as well as emissions of noise, particles, or gas caused by, for example: −
Component malfunctions − Software errors − Operating and/or ambient conditions not within the scope of
the specification − External influences / damage.
3. Hazardous shock voltages caused by, for example: − Component malfunctions − Influence of electrostatic
charging − Induction of voltages in moving motors − Operating and/or ambient conditions not within the
scope of the specification − Condensation / conductive contamination − External influences / damage
4. Electrical, magnetic, and electromagnetic fields generated in operation that can pose a risk to people with
a pacemaker, implants, or metal replacement joints, etc. if they are too close.
5. Release of environmental pollutants or emissions as a result of improper operation of the system and/or
failure to dispose of components safely and correctly.

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Warranty and Limitations of Liability
Warranty
Manufacturer’s exclusive warranty is that the products are free from defects in materials and workmanship
for a period of one year (or other period if specified) from date of sale.
MANUFACTURER MAKES NO REPRESENTATION OR WARRANTY, EXPRESSED OR IMPLIED, REGARDING
MERCHANABILITY, NON-INFRINGEMENT, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY
BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS
WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. MANUFACTURER DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED
Limitations of Liability
MANUFACTURER SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS
OF PROFITS OR COMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS
BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
IN NO EVENT SHALL MANUFACTURER BE RESPONISBLE FOR WARRANTY, REPAIR OR OTHER CLAIMS
REGARDING THE PRODUCTS UNLESS MANUFACTURER’S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE
PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION,
ABUSE, MISUSE, OR INAPPROPIATE MODIFICATION OR REPAIR.

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Content
1 About this documentation ........................................................................................................................ 9
1.1 Symbols and notes............................................................................................................................. 9
2 Safety....................................................................................................................................................... 12
2.1 General Safety Notice...................................................................................................................... 12
3 Device Overview...................................................................................................................................... 13
3.1 General specifications ..................................................................................................................... 13
3.2 CPU Specifications ........................................................................................................................... 14
MKR1010 ................................................................................................................................. 14
ESP32 ....................................................................................................................................... 14
3.3 Mechanical Dimensions................................................................................................................... 15
3.4 Connector type................................................................................................................................ 16
3.5 Device Overview.............................................................................................................................. 16
3.6 Pinout description ........................................................................................................................... 18
3.7 Power Supply................................................................................................................................... 19
3.8 Reset Button.................................................................................................................................... 20
3.9 DIP-Switches Configuration............................................................................................................. 21
3.10 IO’s Configuration............................................................................................................................ 22
Digital Inputs............................................................................................................................ 22
Digital Outputs......................................................................................................................... 23
Analog / Digital Inputs (Configurable) ..................................................................................... 25
Analogue Output ..................................................................................................................... 26
Multifunction Pins ................................................................................................................... 28
3.11 Communications.............................................................................................................................. 30
UART........................................................................................................................................ 30
RS-485...................................................................................................................................... 31
Ethernet................................................................................................................................... 33
WiFi.......................................................................................................................................... 34
Bluetooth Low energy ............................................................................................................. 34
SPI ............................................................................................................................................ 34
I2C............................................................................................................................................ 36
3.12 Other functionalities........................................................................................................................ 37
RTC........................................................................................................................................... 37

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EEPROM................................................................................................................................... 38
ATECCX08 Chipset.................................................................................................................... 38
µSD slot.................................................................................................................................... 38
3.13 Additional Communications ............................................................................................................ 39
LoRa and LoRaWAN................................................................................................................. 39
NB IoT ...................................................................................................................................... 40
Antennas.................................................................................................................................. 41
4 Software Programming............................................................................................................................ 43
4.1 Connect WEIDOS to PC.................................................................................................................... 43
4.2 Arduino IDE...................................................................................................................................... 44
4.3 Examples.......................................................................................................................................... 45
5 Installation and Maintenance.................................................................................................................. 47
Annexes ........................................................................................................................................................... 50
A1. Ferrite installation................................................................................................................................. 50

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1 About this documentation
1.1 Symbols and notes
The safety notices in this documentation are designed according to the severity of the danger.
DANGER
Imminent danger to life!
Notes with the signal word “Danger” warn you of situations which will result in serious injury or death
if you do not follow the instructions given in this manual.
WARNING
Possible danger to life!
Notes with the signal word “Warning” warn you of situations which may result in serious injury or
death if you do not follow the instructions given in this manual.
ATTENTION
Material damage!
Notes with the signal word “Attention” warn you of hazards which may result in material damage.
CAUTION
Risk of injury!
Notes with the signal word “Caution” warn you of situations which may result in injury if you do not
follow the instructions given in this manual.
Text next to this arrow are notes which are not relevant to safety but provide important
information about proper and effective work procedures.

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Table that includes all the symbology that is used in this manual or serigraphy of Weidos products:
Symbol
Standard No. /
Standard Title
Standard
Reference No. /
Symbol Title
Symbol Meaning
IEC 60417 /
Graphical symbols
for use on
equipment
5031 / Direct
Current
Indicates that the equipment is
suitable for direct current only;
to identify relevant terminals
IEC 60417 /
Graphical symbols
for use on
equipment
5130 / Pulse
General
To identify the control by
which a pulse is started.
IEC 60417 /
Graphical symbols
for use on
equipment
5017 / Earth,
Ground
To identify an earth (ground)
terminal in cases where
neither the symbol 5018 nor
5019 is explicitly required.
IEC 60417 /
Graphical symbols
for use on
equipment
5115 / SIgnal lamp
To identify the switch by
means of which the signal
lamp(s) is (are) switched on or
off.
Medical Devices
Directive
93/42/EEC
CE Marking
CE marking indicates that a
product complies with
applicable European Union
regulations
ISO 7000/
Graphical symbols
for use on
equipment
0434B /
Warning symbol
Indicates a potentially
hazardous situation which, if
not avoided, could result in
death or serious injury
ISO 7000/
Graphical symbols
for use on
equipment
5036 / Dangerous
Voltage
To indicate hazards arising
from dangerous voltages
•Unused pins should not be connected. Ignoring the directive may damage the controller.
•Improper use of this product may severely damage the controller.
•Refer to the controller’s User Manual regarding wiring considerations.
•Before using this product, it is the responsibility of the user to read the product’s User Manual and
all accompanying documentation.
•Maintenance must be performed by qualified personnel familiarized with the construction,
operation, and hazards involved with the control.
•Maintenance should be performed with the control out of operation and disconnected from all
sources of power.
•Care should be taken when servicing electrostatic sensitive components. The manufacturer's
recommendations for these components should be followed.

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•Weidos Controllers are Open-Source devices. It is required that you install the Weidos PLC in a
housing, cabinet, or electric control room. Entry to the housing, cabinet, or electric control room
should be limited to authorized personnel. Failure to follow these installation requirements could
result in severe personal injury and/or property damage. Always follow these requirements when
installing Weidos family PLCs.
•In case of installation or maintenance of Weidos products please follow the instructions marked in
the Installation and Maintenance section.
•Do not disconnect equipment when a flammable or combustible atmosphere is present.
Disconnection of equipment when a flammable or combustible atmosphere is present may cause a
fire or explosion which could result in death, serious injury and/or property damage.

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2 Safety
This section includes general safety instructions for handling Weidos devices. Specific warning notices for
specific tasks and situations are given at the appropriate places in the documentation. Failure to observe the
safety and warning notices may result in damage to persons and material.
2.1 General Safety Notice
Consider the following steps to follow. A false manoeuvre could be the cause of an accident or material
damage.
Do not disassemble or modify the modules. This could lead to breakdowns or malfunctions and could lead to
injuries or fire.
- All types of radio communication devices, including mobile phones and personal handy-phone systems
(PHS), must be kept more than 25cm away from the controller in all directions. Failure to observe this
precaution exposes malfunctions caused by excess of temperature.
- Disconnect the external power supply of the system (on all phases) before connecting or disconnecting a
module. Failure to observe this precaution may cause faults or malfunctions of the module.
- Before handling a module, dispose of the electrostatic charge accumulated by the human body by touching
a suitable conductive object. Failure to observe this precaution may cause faults or malfunctions of the
module.
Fuse protection
The operator must set up the equipment so that it is protected against overloading. The 12V DC or 24 V DC
power supply units used must fulfill the SELV category, no matter whether they supply the system or feed-in
modules. The output voltage of the feed-in power supply has to fulfill overvoltage category 1 according to
IEC 61010.
Electromagnetic Compatibility RED Directive
The IEC 61000 standard on immunity requirements for electromagnetic compatibility applies to standard and
additional wireless communications in Weidos products.
The immunity requirements have been selected to ensure an adequate level of immunity for devices used in
industrial settings. The equipment meets the essential electromagnetic compatibility requirements
concerning immunity.
According to the regulations that are part of EN 61131-2: 2007 and specifically, the sections
61000-6-2 for immunity and 61000-6-3 for emissions, Weidos models ensure the smooth operation of all
your wireless networks in industrial and / or domestic environments.

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3 Device Overview
Within Weidos devices, there are two main variants in terms of CPUs. These variants integrate MKR1010 and
the ESP32 CPU’s. Below, we specify the general specifications of Weidos controllers, main characteristics of
each CPU board and basic functionalities.
3.1 General specifications
See next table for specs:
WEIDOS GENERAL SPECIFICATIONS
Input Voltage
12 to 24VDC
Input rated voltage
11.4 to 25.4 VDC
Rated Power
30 W
I max. at 24Vdc
1.5A
Ambient Temperature
(Operating)
0º to 60ºC
Ambient Temperature
(Storage)
-20º to 60ºC
Ambient Humidity
(Operating)
10% to 90% (Without Condensation)
Ambient Environment
(Operating)
With no corrosive gas
Max. Operating
Altitude
2000m (6562 ft)
Will work without de-rating at a maximum
altitude of 2000m
Pollution Degree
PD2
Normally only nonconductive pollution occurs.
Temporary conductivity caused by
condensation is to be expected.
Size
114x46x127 (mm)
Communications
Ethernet –RS485 and Serial TTL (Selectable by
switch) SPI –Wi-Fi (With external Antenna) –
Bluetooth Low Energy –I2C
USB consideration!
Only meant for uploading or debugging, not
always connected as a serial in a project!
Cannot be working in a final application
Analog Input 12bit
(0-10VDC)
0 to 10VDC
Input Impedance: 39K
Separated PCB ground
Rated Voltage: 10VDC
I max: 2mA at 10VDC
Digital Isolated Input
(5-24VDC)
5 to 24VDC
I max: 12 mA
Rated Voltage: 24 VDC
I max: 12 mA at 24VDC
Analog Output 10 bit
(0-10VDC)
0 to 10VDC
I max: 10 mA
Separated PCB ground
Rated Voltage: 10VDC
I max: 10 mA at 10VDC
Digital Isolated
Output (24VDC*)
5 to 24VDC
I max: 70 mA
Rated Voltage: 24VDC
Imax at 24VDC: 410 mA (total amount of all
Digital Outputs)
Multi-Function pins
(3.3VDC/5VDC)
0 to 3,3 or 0 to 5 VDC
Voltage range configurable by DIP switches
Can be used as Digital Inputs, Digital Outputs,
Interrupts or PWM signals
Expandability
(I2C - 127 elements) - Serial Port and RS485
(Up to 32 devices with Modbus RTU)

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3.2 CPU Specifications
MKR1010
This section specifies the characteristics of the CPU included in the Weidos MKR1010 models, which are:
-WEIDOS-MKR1010-A1
-WEIDOS-MKR1010-LORA-A1
-WEIDOS-MKR1010-NBIOT-A1
See following table for CPU specs:
Microprocessor
ARM Cortex-M0 32-bit SAMD21
ROM
256 kB (internal)
SRAM
32 kB
Internal RTC Speed
32.768 kHz
ESP32
This section specifies the characteristics of the CPU included in the Weidos ESP32 models, which are:
-WEIDOS-ESP32-A1
-WEIDOS-ESP32-LORA-A1
-WEIDOS-ESP32-NBIOT-A1
See following table for CPU specs:
Microprocessor
Xtensa® single-/dual-core 32-bit LX6
microprocessor(s), up to 600 MIPS (200
MIPS for ESP32-S0WD/ESP32-U4WDH)
ROM
448 kB (internal)
SRAM
520 kB SRAM
Internal RTC Speed
31.25 kHz clock

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3.3 Mechanical Dimensions
See mechanical dimensions (mm) below:

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3.4 Connector type
Weidos Controllers are equipped with “PUSH IN” connector system. This technology allows for fine-wired
conductors with crimped wire-end ferrules or ultrasonically welded conductors, each with a maximum cross-
section of 1.5 mm² (AWG24 –AWG14), to be inserted easily through the opening in the clamping terminal
without having to use tools. To insert fine-wired conductors without wire-end ferrules, the pusher must be
pressed in with a screwdriver.
Connector’s type:
Voltage Signals
0-10 V DC (Analog)
24 V DC (Digital & Supply)
Serial Communications
RS485 / UART
SPI & I2C
Multi Function Pins
Direct to uController
3,3 VDC / 5 VDC
Connectors General Specifications:
Connectors PG
1.5 mm with four conductor connections
Max. Ampacity
10 A
Poles
4-pole
3.5 Device Overview
In this section we can see a general overview of Weidos device:
Right side:

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Left side:
Top view:

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3.6 Pinout description
In this section it is described all pins of Weidos devices:
RS-485 / UART CONNECTORS
Pin Number
Pin Name
Description
11
A / Tx
Transmit Serial Data (Half-Duplex)
12
B / Rx
Receive Serial Data (Half-Duplex)
13
GND
Internal GND
14
RE-DE / NC
RE-DE pin High (send) Low (receive)
Comments
UART or RS485 functionality selectable via DIP Switches.
Remove Power Supply before changing DIP switches configuration.
ANALOG INPUTS
Pin Number
Pin Name
Software Name
Description
15
ADI_0
pin15 / ADI_0
Analogue/Digital Input
16
ADI_1
pin16 / ADI_1
Analogue/Digital Input
17
ADI_2
pin17 / ADI_2
Analogue/Digital Input
18
ADI_3
pin18 / ADI_3
Analogue/Digital Input
POWER SUPPLY & GND pins
Pin Number
Pin Name
Description
21
Vin+
Device Power feed Vin+
22
Vin-
Device Power feed Vin-
23
GND
Internal GND
24
GND
Internal GND
DIGITAL INPUTS
Pin Number
Pin Name
Software Name
Description
25
DI_4
pin25 / DI_4
Digital Input
26
DI_5
pin26 / DI_5
Digital Input
27
DI_6
pin27 / DI_6
Digital Input
28
DI_7
pin28 / DI_7
Digital Input
MULTI FUNCTION PINS
Pin Number
Pin Name
Software Name
Description
41
MF0
pin41 / MF_0
Digital Input / Digital Output / PWM / Interrupt*
42
MF1
pin42 / MF_1
Digital Input / Digital Output / PWM / Interrupt*
43
3,3/5 Vout
-
3,3V / 5V Voltage Output**
44
GND
-
Internal GND
Comments
*Remove Power Supply before changing DIP switches configuration.
**Voltage signal selectable via DIP Switches (3,3 or 5 VDC).

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ANALOG OUTPUT
Pin Number
Pin Name
Software Name
Description
45
AO_0
pin45 / AO_0
Analogue Output
46
Vcc out
-
≈Vin+ (12/24Vdc) – Depending on Power Supply
47
5 Vout
-
5 VDC (Sensor Supply)
48
3.3 Vout
-
3,3 VDC (Sensor Supply)
DIGITAL OUTPUT
Pin Number
Pin Name
Software Name
Description
55
DO_0
pin55 / DO_0
Digital Output
56
DO_1
pin56 / DO_1
Digital Output
57
DO_2
pin57 / DO_2
Digital Output
58
DO_3
pin58 / DO_3
Digital Output
SPI
Pin Number
Pin Name
Software Name
Description
51
MISO
MISO_0
Master Input Slave Output
52
MOSI
MOSI_0
Master Output Slave Input
53
SCK
SCK_0
Serial Clock
54
CS
CS
SPI_CS (Chip Select)
I2C
Pin Number
Pin Name
Software Name
Description
61
SDA
SDA_0
SDA (Serial Data)
62
SCL
SCL_0
SCL (Serial Clock)
63
3.3V
-
3,3 VDC (Sensor Supply)
64
GND
-
Internal GND
3.7 Power Supply
Weidos controllers can be powered from 11,4 to 25,4VDC requiring a minimum of 0,8A to achieve a good
performance. Polarity is NOT REVERSAL, make sure that Voltage and GND wiring (Vin+ and Vin-) are properly
connected. Make sure that power supply is not higher than 25,4 VDC.
It is necessariy to use a ferrite in Power supply wiring to avoid undesired noise in the device. See installation
instructions in Annexes.

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Power Supply schematic:
The standard, Part 1 of IEC 61010, sets the general safety requirements for the following types of electrical
devices and their accessories, regardless of where use of the device is intended. The equipment must be
powered from an external power source in accordance with IEC 61010-1, whose output is MBTS and is limited
in power according to section 9.4 of IEC 61010-1.
3.8 Reset Button
Located at the top cover of Weidos device.
It allows the internal logic to restart the program, to execute the set up again and to start the main loop of
the program again. The data that is stored on the microSD card will be maintained without losing any
information already stored, while the operations that have been left in the middle of execution will start
again from the beginning of the program, losing the temporary values.
CAUTION
Risk of injury!
Once the equipment is installed inside an electrical cabinet, the MTBS cables of the equipment must
be separated from the dangerous voltage cables.