WoMaster LoRa LM100 User manual

LoRa I/O Device User Manual
LoRa Master Controller
LM100/LM200
LoRa End Node Device
LC100/LR100 Series
User Manual: v1.0.2
LM100 FW: v1.3.2
LM200 FW: V1.0
LC144 FW: v1.3.4
LR 100 FW: v0.3
LoRa Utility: v1.3.4

Disclaimer
WoMaster reserves the right to make changes to this user manual or to the
product hardware at any time without notice. It is the user’s responsibility to
determine whether there have been any such updates or amendments herein.
Defects, malfunctions, or failures of the warranted Product(s) caused by damage
resulting from unforeseeable incidents (such as lightings, floods, fire, etc.),
environmental and atmospheric disturbances, other external forces such as power
line disturbances and surge, host computer malfunction and virus, incorrect
power input, or incorrect cabling, incorrect grounding and damages caused by
misuse, abuse and unauthorized alteration or repair are not warranted.

Content
1 Overview.......................................................................................................................................4
2 Product Specification ................................................................................................................5
2.1 Specification - LM100 /LM200/ LC144 Series ......................................................................5
2.2 Specification - LR140............................................................................................................8
3 System Appearance & Connector description..................................................................10
4 Hardware Installation ..............................................................................................................11
4.1 DIN Rail Installation............................................................................................................11
4.2 Power Wiring......................................................................................................................11
4.3 Analog Input Wiring ...........................................................................................................11
4.4 Analog Voltage Output Wiring...........................................................................................12
CH-5 Voltage Output (0~10V) – JP9 .........................................................................................12
4.5 PWM (Pulse Width Modulation) Output ...........................................................................13
4.6 RS-485 Wiring.....................................................................................................................14
5 LoRa Utility Configuration......................................................................................................15
5.1 Connects LoRa device with LoRaUtility..............................................................................15
5.2 Serial Port Configuration – LM100, LC100, LR100 .............................................................18
5.3 Group Net – LM100, LM200 and LC100.............................................................................19
5.4 LoRa (LoRa MAC Transmission Technology) – LM100/LM200/LC100................................21
5.5 LoRaWan-LR100 only .........................................................................................................23
5.6 I/O – LM100/LC100/LR100.................................................................................................25
5.7 RF........................................................................................................................................25
5.8 RTU.....................................................................................................................................26
5.9 Rule Chain – LM200 IO mapping with LC...........................................................................28
5.10 Chain Monitor – LM200 ...................................................................................................30
5.11 Event Log – LM200...........................................................................................................30
5.12 DMA – LC144....................................................................................................................31
6 LC/LM - ModBus RTU Protocol (Register Control Table).................................................32
7 LR100 series - Data Parsing....................................................................................................35
Release Note.................................................................................................................................37

1Overview
The LM LoRa Master Controller and LC LoRa End-Node series utilizes the latest Low Power Wide
Area (LPWA) technology to build Modbus/RTU communication for long-distance, wide-coverage,
and low power consumption wireless IoT applications.
Multiple analog inputs and outputs are supported in LC100 series, such as voltage inputs and
outputs, current inputs and outputs, PWM output and one RS-485 port for Modbus RTU slave.
One LM100 RS485 Modbus RTU can connect up to 250pcs LC100 LoRa end nodes for two-way
communications where field site analog signals are sent from LC100 and controlled by LM100.
The LR100 series support LoRaWAN protocol, and also utilizes LPWA technology to build one way,
long distance communication coverage with LoRa WAN Cloud Gateway for filed RS-485 RTU slave
device connect with IoT Cloud Service.
Although the radio transmission technology is same, the LM100, LM200 and LC100 are utilized
proprietary protocol based on LoRa MAC and different with LR100 standard LoRa WAN protocol.
The LoRa wireless distance can reach up to 3-6KM distance depending on the environment.
The LM100/LC100 series offers great flexibility in wireless IoT applications, such as LED light
control, environment sensors and meters reading for Smart City Applications such as Lighting,
Smart Farming, Smart Environment Monitor, etc.

2Product Specification
Model and features listed in the table below:
Feature Model
LM100
LM200
LC144
LR140
LoRa MAC
Transparent
Yes
Yes
Yes
No
LoRa WAN
Technology
No
No
No
Yes
RS 485, 2-Wire
Yes
No
Yes
Yes
LoRa RTU 485
/Slave
Yes, x1
No
No
No
LoRa RTU 485 /Host
No
No
Yes , x1
Yes, x1
Analog Input
No
No
Yes
Yes
Analog Output
No
No
Yes
No
PWM Output
No
No
Yes
No
2.1 Specification - LM100 /LM200/ LC144 Series
Wireless Specification
Frequency
Supports 2 Models- 900Mhz, 400Mhz for different region.
(the available frequency may limited by different country’s law)
Wireless
Technology
Low Power Wide Area – LoRa MAC Technology
Radio TX Power
22dBm (Maximum). The launch power may be limited by country’s law.
Radio RX Sensitivity
- 148dBm, SF=12 @ 250bps
Spreading Factor
SF5/SF6/SF7/SF8/SF9/SF10/SF12, Default SF7
Remote Configurable by ModBus RTU / Register writing command or
configured through USB interface by LoRa Utility (Contact your sales for
Utility tool)
Demodulator SNR
LoRa Demodulator Signal to Noise Ratio: -2.5dB ~ -20dB
Operating Mode
Modbus protocol over the Air (LoRa MAC Transparent Transmission) with
configurable Echo time and retransmission technology
Forwarding Data
Buffer
256Bytes FIFO Data Buffer for LoRa signal transmission
Data Encryption
128bits AES with configurable key
Management

System
Management
1 x Micro USB 2.0 port for system configuration
Software Utility
Windows© Based Utility
Remote
Management
Remote Configure by Modbus RTU/ Read/Write Command
I/O Interface
Antenna Connector
1x 50 ohm, Female SMA
Serial Interface
2-wires RS-485 Terminal Connector with 1kv isolation
Connector Type: Removable Terminal Connector
Supported Model: LM-100 (Slave), LC-100(Host)
Serial Parameters
Baud Rate: 1200bps,2400bps, 4800bps, 9600bps
Data Bits: 8
Parity Check: None, Even, Odd
Stop Bit: 1,2
Current Input
2 Channels
Detection Range: 4-20mA
Accuracy Level: 0.3%
Voltage Input
2 Channels
Detection Range: 0~10 V
Accuracy Level: 0.2%
Current Output
1 Channel
Output Range: 4-20mA @ Typical 24V Power Input
Accuracy Level: 0.3%
Voltage Output
1 Channel
Output Range: 0.03~10V
Output Type: Open Collect (O.C.) / Push-Pull (Internal Jumper setting) -
Accuracy Level: 0.2%, Full Scale (F.S.)
PWM Output
Frequency: 100Hz~1KHz with 0.2% Duty-Cycle Accuracy
Output Type-1: 5V, 200mA (Max)
Output Type-2: Open Collect (O.C.), 10V /200mA (Max)
System Indication
LED
Power (On): System Power applied
LoRa (Blinking): LoRa RF Signal on Communication
Power Requirement
Input Rating
Typical DC 24V, Rating: 10~30V
3-Pins Removable Terminal Connector for V+ ,Com and Earth Ground
Reverse Protection
Yes
Power
LM100/LM200: 1 Watt @ DC 24V power input

Consumption
LC144: 3 Watts (Max) @ DC 24V power input
Mechanical
Installation
DIN Rail Mount
Enclosure Material
UL94v0, ABS , Anti- U/V
Ingress Protection
IP 40
Dimension
26(D) x 102.5 (H) x 72 mm (W) / with wall mounting clip
Weight
115g
Environmental
Operating
Temperature
-40°C~75°C, 0% ~ 90%, Non-Condensing
Storage
Temperature
-40°C~80°C, 0% ~ 90%, Non-Condensing
Reliability & Warranty
MTBF
>20000 Hours
Warranty
3 Years
Standards
EMC
Compliance with IEC / EN61000-6-2, IEC/ EN61000-6-4 (Note-1)
EMI
Electromagnetic Immunity: CISPR 22, FCC part 15B Class A (Note-1)
EMS
Electromagnetic Suspension:
IEC 61000-4-2 ESD
IEC 61000-4-3 RS
IEC 61000-4-4 EFT
IEC 61000-4-5 Surge
IEC 61000-4-6 CS
IEC 61000-4-8 Pulse Magnetic Field
Model
Description
Note: 1. Compliance standards.

2.2 Specification - LR140
Wireless Specification
Frequency
Supports 2 Models- 900Mhz, 400Mhz for different region.
(the available frequency may limited by different country’s law)
Wireless
Technology
Low Power Wide Area – LoRa WAN Technology
Radio TX Power
22dBm (Maximum). The launch power may be limited by country’s law.
Radio RX Sensitivity
- 148dBm, SF=12 @ 250bps
Spreading Factor
SF5/SF6/SF7/SF8/SF9/SF10/SF12, Default SF7
Demodulator SNR
LoRa Demodulator Signal to Noise Ratio: -2.5dB ~ -20dB
Operating Mode
RTU 485: Modbus protocol over the Air (LoRa WAN Transmission) with
configurable RTU Device / Register Address
Analog Input: Pre-defined Current / Voltage interface
Forwarding Data
Buffer
256Bytes FIFO Data Buffer for LoRa signal transmission
Data Encryption
128bits AES with configurable key
Management
System
Management
1 x Micro USB 2.0 port for system configuration
Software Utility
Windows© Based LoRa Utility
I/O Interface
Antenna Connector
1x 50 ohm, Female SMA
Serial Interface
2-wires RS-485 Terminal Connector with 1kv isolation
Connector Type: Removable Terminal Connector
Supported Model: LR-140(Host)
Serial Parameters
Baud Rate: 1200bps,2400bps, 4800bps, 9600bps
Data Bits: 8
Parity Check: None, Even, Odd
Stop Bit: 1,2
Current Input
2 Channels
Detection Range: 4-20mA
Accuracy Level: 0.3%
Voltage Input
2 Channels
Detection Range: 0~10 V

Accuracy Level: 0.2%
System Indication
LED
Power (On): System Power applied
LoRa (Blinking): LoRa RF Signal on Communication
Power Requirement
Input Rating
Typical DC 24V, Rating: 10~30V
3-Pins Removable Terminal Connector for V+ ,Com and Chassis Earth
Ground
Reverse Protection
Yes
Power
Consumption
LR-140: 3 Watts @ DC 24V power input

3System Appearance & Connector description
The LM, LC and LR series utilize same enclosure with one 3-pin terminal connector for system
power and earth grounding. The other 10-pin connector is I/O access. The detail assignment will
show in the following table.
I/O Channel #
LM100/LM200
LC144
LR140
0
Not Available
V-in: 0~10V, Positive
V-in: 0~10V, Positive
1
Not Available
I-in: 4~20mA, Positive
I-in: 4~20mA, Positive
2
Not Available
V-in: 0~10V, Positive
V-in: 0~10V, Positive
3
Not Available
I-in: 4~20mA,Positive
I-in: 4~20mA,Positive
4
Not Available
I-out:4~20mA, Positive
Not Available
5
Not Available
V-out:0~10V, Positive
Not Available
6
Not Available
PWM-out: 5V,Positive
Not Available
7
Not Available
PWM-out: 10V Positive
Not Available
RS-485A
RTU Slave mode (LM100)
Not Available (LM200)
RTU Host mode
RTU Host mode
RS-485B
RTU Slave mode (LM100)
Not Available (LM200)
RTU Host mode
RTU Host mode
Note: The analog input/ output Com (negative) is share with Power Input “Com”.
Power Connector
•V+, COM, Earth Ground
USB Interface
SMA Antenna Socket
IP-40 Plastic Housing
I/O Connector –10 Conductors
Table 3-1

Diagram 4.2-1
Diagram 4.3-1
4Hardware Installation
4.1 DIN Rail Installation
The LM100/LM200, LC100 and LR100 series supports DIN Rail installation, insert the upper end of
the DIN‐Rail clip into the back of the DIN‐Rail track from its upper side and lightly push the
bottom of the DIN‐Rail clip into the track. The DIN Rail should comply with DIN EN50022 standard.
Using wrong DIN rail may cause unsafe installation.
4.2 Power Wiring
The system power input range supports DC
10~30V. It is recommended apply AC/DC
Switching type power supply with DC
24V/1.5A output for the main power source.
The Following diagram shows how to wiring
the power system from AC/DC Switching
Power Supply
During the power wiring, please turn-off the
AC power input, and make sure the Earth
Ground is well connected with Switching Power Supply module, LoRa Device and Earth
Grounding System for noise immunity.
4.3 Analog Input Wiring
The LC144 and LR140 support 2 Types of Analog
Input, 4~20mA and 0~10V with 3‰ accuracy.
The Analog Input function is available for LC100
and LR100 series. About the definition of channel
type, please refer to Table 3-1, Chapter-3.
Both of LC144 and LR140 adopted 12bits A/D
converter with 3‰ accuracy for the industrial
IoT filed site application.

4.4 Analog Voltage Output Wiring
The Analog output provides 0~10V voltage output open collect (O.C.) driven mode, and
4~20mA current output.
The analog voltage output supports output range from zero to 10 volts with push-pull or
external O.C. mode for Far-End device internal pull-high application.
Push-Pull mode: Internal pull high resistor and connected to Power Input V+, and output
current up to 200mA.
O.C. mode: External pull high by far-end connected device where the control input circuit
adopted resistor and connected to internal power.
Jumper
Channel #
Location
O.C. – Ext. Pull-High
Push-Pull. Internal
Pull-High (No Ext. R)
JP8
CH-7 (PWM 10V)
Nearby CH-7
1-2 Short (Default)
2-3 Short
JP6
CH-6 (PWM 5V)
Nearby CH-6
1-2 Short
2-3 Short (Default)
JP9
CH-5 (Vout)
Nearby CH-5
1-2 Short (Default)
2-3 Short
There are 4 jumpers located at PCBA top side as following drawing.
Change the JP8, JP6 and JP9 for output mode change, and the JP1 is for firmware upgrade.
CH-5 Voltage Output (0~10V) – JP9
The Push-pull output current up to 200mA, and the O.C. mode depends on the connected
device internal pull-high resistance. Change the position of JP9 for mode changes. In
push-pull mode, the output voltage should lower than Power input voltage. Since, the
internal circuit is connected with system power.
1 2 3
JP9
JP6
JP8
1 2 3
JP1

Diagram 4.4-2
10vi
5V
7.5V
2.5V
4~20mA Current Output: the current output
control is commonly used at linear control
system, like as electrical valve control applied
for oil/liquid control system.
The I-out (CH4) wiring refers to Diagram 4.4-2.
4.5 PWM (Pulse Width Modulation) Output
CH-6 PWM 5V Output – JP6
The CH-6 default is PWM 5V output with certain duty-cycle and operating in push-pull mode.
Once, the jumper change to O.C. mode the output voltage will refer to the connected device
internal voltage, the limited voltage is 30V.
CH-7 PWM 10V Output – JP8
The CH-7 default is PWM 10V output with certain duty-cycle and operating in push-pull
mode. Once, the jumper change to O.C. mode the output voltage will refer to the connected
device internal voltage, the limited voltage is 30V.
Theory of PWM Duty-Cycle Control
The PWM control uses constant voltage as
output, and adjusts the duty cycle to
control the PWM dimmer output.
In the diagram 4.5-1, the output voltage is
10V, modulate the On/Off duty cycle, and the
end control device internal get voltage will be
“Full-Volt x Duty Cycle %”.
Example: Full _Output = 10V
50% Duty Cycle, the End Control Device
measured 5V, 75% get 7.5V and so on.

Diagram 4.6-1
Diagram 4.6-2
4.6 RS-485 Wiring
The LM, LC and LR series have
equipped one isolated 2-wire
RS-485 serial interface for long
distance communication. The
baud-rate support 1200bps,
2400bps, 4800bps and 9600bps,
it is configured by LoRa Node
Utility that download from
WoMaster support Web site.
The RS-485 HOST mode is
supported in LC and LR model,
and SLAVE mode only for LM100.
The diagram 4.6-1 show the LM100
connects with Host Device, such as HMI,
PLC system, and the diagram 4.6-2 show
the LC100, LR140 connect with RTU
Sensors.

5LoRa Utility Configuration
The LoRa Node device must configure before installed on the filed-site, the LoRa Utility
could be down-load from the website: www.womaster.eu.
Connects the LoRa device with computer and power reset the LoRa device, then the LoRa
device will into configure mode when detected the USB mode change. During the
configuration mode, all of new system settings will not effective until next power reset.
5.1 Connects LoRa device with LoRaUtility
The LoRa Utility is un-installed, ensure the LoRa node device have powering on,
connecting with PC via USB cable before execute the Utility – “ LoRaUtility.exe”.
The Utility main screw show as below diagram “ 5.1-1 Full Function TAB”
Click “COM” and select the USB mapping com port number. Diagram 5.1-2
Diagram 5.1-2
Diagram 5.1-1 Full Function TAB

Diagram 5.1-4
Diagram 5.1-5
Clicks the “Tools”, selects the “Options”
for PC USB/Serial setting. The default
parameter is Non parity check, 115200bps,
8 Data bits, 1 Stop bit (115200, N, 8, 1),
the response time out is 1000ms, and
retry number is 1. After new parameters
setting, click “Apply” to apply the setting.
It is recommend does not modify these
parameters. The LM100/LM200/LC100/LR100
supports USB COM port baud rate auto sensing.
Diagram 5.1-3, 5.1-4
Click the “Connect” icon, the login dialog will pop
up for user name and password input. Diagram
5.1-5
Default User Name and Password is “admin”
Diagram 5.1-3

System Settings for version, S/N, TimeStamp, Output value Hold configure and
Username, Password modification.
Clicks the “Tools” and select the
“Setting” for those parameters
setting.
Click “Apply” icon to apply the
new setting, then warning dialog
will pop up to make sure perform
new setting. Click “Yes” to apply
it. Diagram 5.1-5
Character Length is 16Bytes for
username and password.
Once login the LoRa Node system, the utility will show the connective device model
and the COM port information. Meanwhile, it will present available function TAB for
different model. For the easy understanding, the function TAB listed in table as
following Table 5.1-1 for fdifferent product series.
Function TAB
LM100
LM200
LC100
LR100
Note
Serial
Modbus Slave
N/A
Modbus Host
Modbus Host
Group Net
Yes
Yes
Yes
N/A
LoRa
Yes
Yes
Yes
N/A
LoRaWan
N/A
N/A
Not Available
Yes
I/O
N/A
N/A
Yes
Analog Input
RF
Yes
Yes
Yes
Yes
RTU
N/A
N/A
Yes
Yes
Rule Chain
N/A
N/A
N/A
N/A
IO Mapping
Chain Monitor
N/A
Yes
N/A
N/A
Event Log
N/A
Yes
N/A
N/A
Table 5.1-1

5.2 Serial Port Configuration – LM100, LC100, LR100
The LM100/ LC100/ LR100 support one RS-485 serial interface with different Modbus
mode. Following table shows the Modbus mode information for each model.
Channel #
LM100
LC144
LR140
RS-485A
RTU Slave mode
RTU Host mode
RTU Host mode
RS-485B
RTU Slave mode
RTU Host mode
RTU Host mode
The Serial RS485 Configuration Page is for Serial communication parameter setting.
Click “Read “to download device’s internal setting, and “Write” to set new parameters
into device. The LM/LC should give independent Device Modbus Address. The LM’s
Modbus address also is the Group ID for LM/LC LoRa MAC Net Grouping.
Baud Rate: 1200, 2400, 4800, 9600 bps
Data bit: 8 bit
Parity Check: No, Even, Odd
Stop bit: 1, 2bit
Device Modbus Address: the Modbus address ID range supports from 1 to 250. The
Modbus Address should not same as other device which belong same LoRa MAC
communication group, it includes HMI, PLC on RS485 main communication bus, and
other RTU devices connected under LC100.
Table 5.2-1
Diagram 5.2-1

5.3 Group Net – LM100, LM200 and LC100
Group Net Parameters – establish a wireless communication group that deploys LoRa
MAC technology. Click “Read” to read current parameter, and click” Write” to write
new parameters into system.
GroupOwner ID: It is only for LoRa Controller -LC series, and LM is not allows perform
read and write. The Group Owner ID is the Modbus ID address of LM100 or LM200. The
LoRa Controller –LC series recognize LoRa packet received and send to Group Net owner
(LM) will utilize this Group Owner ID (LM’s Modbus ID). With wrong Group Owner ID
setting will cause communication malfunction. As the net grouping theory, the LC
devices with same Modbus ID address will not communicate with wrong LM. Since, each
LC has its own Group Net Owner.
AES On/Off: Enable, Disable the encryption of Lora transmission. The encryption key of
LM and LC should be same.
AES Key: the encryption key for LM and LC series. Key length supports 16bytes.
The LM and LC which are in same LoRa MAC transmission group should be applied with
same AES Key for Data encryption.
Response Time Out: Set the timeout time for each communication between LM and LC.
As the LPWAN LoRa wireless technology, it does not guaranty the reliability of LoRa
Communication. As this resulting, the LM and LC deployed ECHO mechanism to make
sure the successful of communication. During the time-out period, LM will re-transmit
until out of time. If the Upper layer Modbus RTU Host (HMI, PLC controller) request busy
Diagram 5.3-1

and the LM100 can’t establish communication with LC, then the Modbus Data may be
dropped. However, the Modbus protocol also specifies the re-polling and waiting timer
mechanism for the real filed-site application if far-end Modbus slave in busy.
Destination ID: This setting is only for LC that has connected to Modbus RTU slave
device. Those Modbus RTU slave devices have independent Modbus Device Address.
Click and Select the Address for Modbus RTU slave Devices which are installed with LC or
LR.
Click “Read” to download the RTU Modbus slave device’s ID that storage in the LC or LR,
and “Write” to write new RTU slave device’s ID into LC.