UR8A – 8 Channel USB Relay Module | Numato Lab Help Center

1.Introduction

The Numato Lab’s UR8A – 8 Channel USB Relay Module is a precision-engineered control interface designed for professionals who demand reliability, simplicity, and intelligent automation in a single, compact module.

The UR8A module enables effortless relay control and digital input monitoring over USB through a clean, human-readable command interface. This streamlined approach removes unnecessary complexity, allowing developers, engineers and integrators to focus on building systems, not decoding protocols.

Crafted with a modern, industrial-grade architecture, the UR8A – 8 Channel USB Relay Module is built to perform consistently in all environments.

At its core lies the powerful Smart Action Engine, transforming the device from a simple interface into an autonomous control unit. With support for intuitive, rule-based automation, the module can independently execute logic such as event-triggered actions, elimination the need for constant host supervision.

To further enhance precision and system resilience, the module includes:

Relay Timer for accurate and repeatable output behavior.
Integrated IO Failsafe Engine to ensure safe operations.

As a result the UR8A – 8 Channel USB Relay is a device that delivers clarity in control, intelligence in operation, and confidence in deployment.

Whether used for industrial automation, testing infrastructure, or system integration, the UR8A – 8 Channel USB Relay Module sets a new standard for smart, reliable, and user-centric control solutions.

Applications

Industrial Automation and Control
Building and Facility Automation
Remote Monitoring and Control Systems
Power Management and Sequencing
Safety and Failsafe Systems
Edge Automation (Standalone Operation)
Test and Measurement Automation
DIY and Hobby

Board Features

8 Relay Outputs (SPST, 7A Switching Capacity)
8 High-Voltage Digital Inputs (Up to 24V)
Dedicated Relay Status LEDs
Secure Command-Line Interface over USB
Smart Action Engine (Rule-Based Automation)
Advanced Relay Timer Functionality
Configurable Failsafe Input
DIN Rail Mount Compatibility
RGB Status Indicator
Device Reset and Factory Reset Switch

Parameter *	Value	Unit
Basic Specifications
Number of relays	8
Number of digital Inputs	8
Digital circuit power supply voltage (External)	12/24	V
Maximum current drawn by digital circuitry	300	mA
Digital Inputs Specifications
Minimum DI sink current	2.05	mA
Maximum DI sink current	30	mA
Recommended sink current	10	mA
Maximum Low Voltage (VIL)	10.2	V
Minimum High Voltage (VIH)	10.5	V
Maximum High Voltage	24	V
Relay Specifications
Nominal relay coil voltage	12/24	V
Nominal coil power consumption (per relay)	450	mW
Relay contact material	Silver Alloy, silver metal-oxide
Contact rating	7A 250VAC 7A 30VDC
Maximum switching voltage	250VAC/30VDC
Maximum switching current (recommended)	7	A
Maximum switching power	2500VA/300W
Contact resistance	100	mΩ (at 1A 6VDC)
Insulation resistance	1000	MΩ
Life expectancy (Electrical)	100000 50000	Operations (at 10A 250VAC resistive load, room temp) Operations (at 10A 250VAC, resistive load, at 85°C)
Life expectancy (Mechanical)	10000000	Operations
Maximum switching on response time	1	second
Maximum switching off response time	9	second
shock resistance (Functional)	294	m/s2
Shock resistance (Destructive)	980	m/s2
Vibration resistance	10Hz to 55Hz, 1.5mm DA

Action	LED Indication	Function
Single Click	The Red LED briefly turns OFF and ON, indicating that the device is restarting.	Device Reset: Resets the device and reinitializes.
Press for 5-7 seconds	The Red LED blinks continuously while the factory reset process is in progress.	Factory Reset: Device erases all the settings and restores to factory defaults.

User name	admin
Password	admin1234
Device ID	00000000
Smart Action	Disabled
Relay Power-On	Disabled
GPIO Notify Feature	Disabled
IO Failsafe	Disabled

Error Code	Error Name	Description
-3	Invalid Command	The entered command is not recognised by the device
-2	Invalid Argument	One or more parameters are incorrect
-51	Invalid Relay Timer Limit	Timer delay is outside the allowed range

No.	Command	Parameters	Example	Description
1	ver	None	ver	Returns firmware Version
2	id	get/set xxxxxxxx	id get, id set 12345678	Reads/Sets id of the module
3	usr	get/set xxxxxxxx	usr get, usr set admin	Reads/Sets User name
4	pass	get/set xxxxxxxx	pass get, pass set admin	Reads/Sets Password
5	usr auth	get/on/off	usr auth get, usr auth on, usr auth off	Returns User Auth status, Enable/Disable Authentication
6	relay	on/off/status [relay number]/ on all/off all/ write [relay_group] [relay_map]/ pwron [relay_group] [relay_map]/ tmr get [relay_number]/disable [relay_number]/[relay_number] [mode] [delay_seconds]	relay on 000,relay off 000, relay status 000, relay on all, relay off all, relay write A 00ff, relay pwron A 00ff, relay tmr get 000, relay tmr disable 000, relay tmr 000 M0 2	Relay Control
8	gpi	gpi read [input number], gpi notify on/off/get	gpi read 000, gpi read, gpi notify on, gpi notify off. gpi notify get	Monitor General Purpose Input
11	smart	get/-i/-r/disable/ [input] [mode] [target_output] [value]	smart get 000, smart -i 000, smart -r 000, smart disable, smart 000 L 000 1	Read configured data, clear configured input, clear configured relay, disable entire smart action feature, configure smart feature
7	fs	get input_number/reset/disable/ [input] [mode] [relay_group] [relay_map]	fs get 000, fs reset, fs disable, fs 000 L A 0012	Read status of IO failsafe, Manual Reset Failsafe, Disable Failsafe, Configure Failsafe
9	info	none	info	Display information about the module including Smart Action, Power-on status, and IO Failsafe
10	reboot	reboot	power reset	Power reset does a soft-reset.
11	fact	reset	fact reset	Perform device factory reset

Relay State	IN to OUT Connection	Load Condition
OFF	Open	Load Disconnected
ON	Closed	Load Energized

No.	Command	Example	Description
1	ver	ver	This command returns the current firmware version of the device. Command Format `ver` Response Format `xxxx` xxxx – Firmware version string Description Returns the firmware version currently running on the device. Example `ver` Returns firmware version Notes The version format may vary depending on the firmware release.
2	id	id get id set xxxxxxxx	This command is used to read and configure the device ID. Command Format `id get` `id set x` x – New device ID (exactly 8 characters) Description `id get` returns the current device ID. `id set x` updates the device ID to the specified value. Example `id get` Returns the current device ID `id set DEV12345` Sets the device ID to "DEV12345" Notes The device ID must be exactly 8 characters in length. Changing the device ID may affect identification in connected systems or applications.
3	usr	usr get usr set xxxxxxxx	This command is used to read and configure the device username. Command Format `usr get` `usr set x` x – New username (1 to 8 characters) Description `usr get` returns the current username configured on the device. `usr set x` updates the username to the specified value. Example `usr get` Returns the current username `usr set admin` Sets the username to "admin" Notes Username length must be between 1 and 8 characters. Changing the username affects authentication over the USB interface.
4	pass	pass get pass set xxxxxxxx	This command is used to read and configure the device password. Command Format `pass get` `pass set x` x – New password (9 to 31 characters, alphanumeric and symbols supported are `!, @, ^, (, )`) Description `pass get` returns the current password configured on the device. `pass set x` updates the device password to the specified value. Example `pass get` Returns the current password `pass set admin1234` Sets the password to "admin1234" Notes Password length must be between 9 and 31 characters. Use a strong password to ensure secure access to the device. Changing the password affects authentication over the USB interface.
5	usr auth	usr auth get	This command returns the current USB authentication status. Command Format `usr auth get` Response Format `USR Authentication Disabled` – Authentication is DISABLED `USR Authentication Enabled`– Authentication is ENABLED Description Returns whether USB authentication is currently enabled or disabled. Example `usr auth get` Returns USR Authentication Enabled if authentication is enabled, otherwise USR Authentication Disabled Notes Ensure authentication is enabled for secure operation. When disabled, commands can be executed without credentials.
		usr auth on	This command enables USB authentication for the device. Command Format `usr auth on` Description Enables authentication over the USB interface. Once enabled, valid credentials are required to execute commands. Example `usr auth on` Enables USB authentication Notes Ensure valid username and password are configured before enabling authentication. If credentials are unknown, use factory reset to restore default access.
		usr auth off	This command disables USB authentication for the device. Command Format `usr auth off` Description Disables authentication over the USB interface. Once disabled, commands can be executed without requiring a username or password. Example `usr auth off` Disables USB authentication Notes Disabling authentication reduces access security. It is recommended to use this feature only in trusted environments.
6	relay	relay on xxx	This command turns ON a specific relay channel. Command Format `relay on xxx` xxx – Relay number (Range: 000 to 007, numbering starts from 0) Description Turns ON the selected relay channel. Example `relay on 000` Turns ON Relay 0 Notes Ensure the relay number is within the valid range (000–007). The command immediately updates the relay state. If a relay is mapped to smart action or relay timer, manual control will be restricted
		relay off xxx	This command turns OFF a specific relay channel. Command Format `relay off xxx` xxx – Relay number (Range: 000 to 007, numbering starts from 0) Description Turns OFF the selected relay channel. Example `relay off 000` Turns OFF Relay 0 Notes Ensure the relay number is within the valid range (000–007). The command immediately updates the relay state. If a relay is mapped to smart action or relay timer, manual control will be restricted
		relay status xxx	This command returns the current status of a specific relay channel. Command Format `relay status xxx` xxx – Relay number (Range: 000 to 007, numbering starts from 0) Response Format `on or off` on – Relay is ON off – Relay is OFF Description Returns the current state of the selected relay channel. Example `relay status 000` Returns status of Relay 0 Notes Ensure the relay number is within the valid range (000–007). The response reflects the real-time state of the relay at the moment of execution.
		relay status	This command reads the current status of all relays in a single operation. Command Format `relay status` Response Format `A:XXXX` XXXX – Current relay state (hexadecimal value) Description The returned value represents the state of all relays in the selected group. Each bit corresponds to one relay channel. 0 – Relay OFF 1 – Relay ON Example `A:0000` – All relays are OFF `A:00FF` – All relays are ON Group Representation A – Group A (first 16 relays) Each bit represents one relay channel Value Range UR8A: `0000` to `00FF` (8-bit) UR16A: `0000` to `FFFF` (16-bit)
		relay on all	This command turns ON all relay channels. Command Format `relay on all` Description Turns ON all relays in a single operation, regardless of their current state. Example `relay on all` Turns ON all relays Notes This command immediately sets all relay outputs to ON. It overrides any previously set relay states. If a relay is mapped to smart action or relay timer, manual control will be restricted
		relay off all	This command turns OFF all relay channels. Command Format `relay off all` Description Turns OFF all relays in a single operation, regardless of their current state. Example `relay off all` Turns OFF all relays Notes This command immediately sets all relay outputs to OFF. It overrides any previously set relay states. If a relay is mapped to smart action or relay timer, manual control will be restricted
		relay write A 00xx	This command controls all relays in a single operation using a hexadecimal value. Command Format `relay write G xxxx` G – Relay group identifier A – Group A (relays 0 to 15) xxxx – Relay state value (hexadecimal) Description Sets the state of multiple relays simultaneously. Each bit in the hexadecimal value represents one relay in the group. Bit Representation 0 – Relay OFF 1 – Relay ON Example `relay write A 00FF` – Turns ON all relays in Group A Value Range UR8A: `0000` to `00FF` (8-bit) UR16A: `0000` to `FFFF` (16-bit) Notes Each bit position corresponds to a relay channel within the group. Ensure correct bit mapping to avoid unintended relay switching. If a relay is mapped to smart action or relay timer, manual control will be restricted
		relay pwron A 00xx	This command sets the relay power-on state for the module. Command Format `relay pwron G xxxx` G – Relay group identifier A – Group A (first 16 relays) xxxx – Relay state value (hexadecimal) Description Defines the relay states that will be applied when the device powers on or resets. Each bit in the hexadecimal value represents the state of a relay. Bit Representation 0 – Relay OFF 1 – Relay ON Example `relay pwron A 0003` 0000 0000 0000 0011 → Relays 0 and 1 ON, all others OFF Value Range UR8A: `0000` to `00FF` (8-bit) UR16A: `0000` to `FFFF` (16-bit) Notes The configured state is applied on device power-up or reset. Ensure correct bit mapping to avoid unintended relay activation. If a relay is mapped to smart action or relay timer, manual control will be restricted
		relay tmr get xxx	This command returns the current configuration and status of a specific relay timer. Command Format `relay tmr get xxx` xxx – Relay number (Range: 000 to 007, numbering starts from 0) Response Format `Mx D:yyyy` M:Mx – Timer mode (M0 [Delayed ON], M1 [Delayed OFF], M2 [Toggle]) D:yyyy – Delay value in seconds Description Returns the timer configuration for the selected relay. Includes the configured timer mode and delay value. Example `relay tmr get 000` Returns timer status for Relay 0 Notes Ensure the relay number is within the valid range (000–007). If no timer is configured, the response will indicate "timer not active".
		relay tmr get	This command returns the list of relays with timer configurations. Command Format `relay tmr get` Response Format `Active timers: xxx xxx xxx` xxx – Relay numbers with timer configured Description Returns a list of relay channels for which timer functionality is currently configured. Only relays with active timer settings are included in the response. Example `relay tmr get` `Active timers: 000 002 005` Indicates that relay timers are configured on Relay 0, 2, and 5. Notes If no relay timers are configured, the response may indicate an empty or default state. Use `relay tmr get xxx` for detailed timer configuration of a specific relay.
		relay tmr disable xxx	This command disables the relay timer configuration for the specified relay channel. Command Format `relay tmr disable xxx` xxx – Relay number (Range: 000 to 007) Description Disables the timer configured for the selected relay. Once disabled, the relay will no longer operate based on timer settings. Example `relay tmr disable 000` Disables timer for Relay 0 Notes Ensure the relay number is within the valid range (000–007).
		relay tmr disable	This command disables the Relay Timer feature for all relay channels. Command Format `relay tmr disable` Description Disables all configured relay timers. Once disabled, no relay will operate based on timer settings. Example `relay tmr disable` Disables all relay timer operations Notes Use the timer configuration command to re-enable timer-based behavior.
		relay tmr [relay_number] [timer_mode] [timer_delay]	This command configures the timer behavior of a specific relay channel, enabling precise control over relay operation based on time. Command Format `relay tmr xxx mode delay` xxx – Relay number (Range: 000 to 007) mode – Defines the operating mode of the relay timer M0 – Delayed ON M1 – Delayed OFF M2 – Toggle Timer delay – Time delay in seconds (Range: 1 to 3600 seconds) Description Configures time-based behavior for the selected relay channel. The relay action depends on the selected mode and delay value. Examples `relay tmr 000 M0 1` – Turns ON Relay 0 after a delay of 1 second `relay tmr 000 M1 4` – Turns OFF Relay 0 after a delay of 4 seconds `relay tmr 000 M2 10` – Toggles Relay 0 every 10 seconds Notes Timer configurations are persistent and remain active even after a power reset. A configured timer continues to operate until it is explicitly disabled or the device is factory reset. If a relay is already mapped to smart action, relay timer cannot be configured
8	gpi	gpi read xxx	This command reads the current state of a specific digital input (GPI). Command Format `gpi read xxx` xxx – Digital input number (Range: 000 to 007) Response Format `0 or 1` 0 – Input is LOW 1 – Input is HIGH Description The command returns the instantaneous logic level of the selected digital input. Example `gpi read 000` Returns 0 or 1 depending on the current state of GPI 0 Notes Ensure the input number is within the valid range (000–007). The response reflects the real-time state of the input at the moment of execution.
		gpi read	This command reads the current status of all digital inputs in a single operation and returns the values grouped by input channels. Command Format `gpi read` Response Format `A:XXXX` XXXX – Current digital input state (hexadecimal value) Description The returned value represents the state of all digital inputs in the selected group. Each bit corresponds to one input channel. 0 – GPI LOW 1 – GPI HIGH Example `A:00FF` – All inputs in Group A are HIGH `A:0001` – GPI 0 is HIGH, all other inputs are LOW Group Representation A – Group A (first 16 digital inputs) Each bit represents one input channel 0 – GPI LOW 1 – GPI HIGH Value Range UR8A: `0000` to `00FF` (8-bit) UR16A: `0000` to `FFFF` (16-bit)
		gpi notify on	This command enables digital input (GPI) change notifications. When enabled, the device monitors input state changes and sends a notification to the host whenever a change is detected. Command Format `gpi notify on` Notification Format `A:XXXX/YYYY` XXXX – Current input state YYYY – Previous input state Description A notification is sent only when a change is detected in any input bit. The value represents the state of all inputs in the group using hexadecimal format. Example `A:00FE/00FF` Previous state: `00FF` Current state: `00FE` This indicates that GPI 0 changed from HIGH (1) to LOW (0), triggering the notification. Group Representation A – Group A (first 16 digital inputs) Each bit represents one input channel 0 – GPI LOW 1 – GPI HIGH Value Range UR8A: `0000` to `00FF` (8-bit) UR16A: `0000` to `FFFF` (16-bit)
		gpi notify off	This command disables the GPI change notification feature. Command Format `gpi notify off` Response Format `Gpi Notify Disabled` Description Disables automatic notifications for digital input state changes. Once disabled, the device will no longer send updates to the host when input states change. Example `gpi notify off` Disables GPI change notifications
		gpi notify get	This command returns whether the GPI change notification feature is enabled or disabled. Command Format `gpi notify get` Response Format `Gpi Notify Enabled` or `Gpi Notify Disabled` Description Returns the current status of the gpi change notification feature. Example `gpi notify get` Returns `Gpi Notify Enabled` or `Gpi Notify Disabled`
	smart	smart get xxx	This command returns the current Smart Action configuration for a specific digital input channel. Command Format `smart get xxx` xxx – Digital input number (Range: 000 to 007) Response Format `M:L R:000:H` M – Input mode (L: LOW, H: HIGH, F: FOLLOW) R – Relay number H / L – Trigger value (HIGH / LOW) Description Returns the Smart Action settings configured for the selected digital input Includes operating mode, mapped relay outputs, and configured trigger values Example `smart get 000` Returns Smart Action configuration for Digital Input (GPI) 0 Notes Ensure the input number is within the valid range (000–007) If no Smart Action is configured, the response will indicate `I:000 not mapped`
		smart get xxx raw	This command returns the current Smart Action configuration for a specific digital input channel in raw bit format. Command Format `smart get xxx raw` xxx – Digital input number (Range: 000 to 007) Response Format `M:X R:xxxxxxxx V:xxxxxxxx` M – Input mode (L: LOW, H: HIGH, F: FOLLOW) R – Relay mapping in bit format V – Trigger values in bit format Description Returns the Smart Action configuration for the selected digital input in raw bit representation. Each bit in R corresponds to a relay, and each bit in V defines the trigger value for the corresponding relay. Bit Mapping Bit 0 (Least Significant Bit) corresponds to Relay 0 Bit 7 (Most Significant Bit) corresponds to Relay 7 Example `smart get 000 raw` Returns Smart Action configuration for Digital Input (GPI) 0 in raw format `M:L R:00000001 V:00000001` Digital Input 0 is configured in LOW mode. Relay 0 is mapped with trigger value HIGH (1). Notes Ensure the input number is within the valid range (000–007). If no Smart Action is configured, the response will indicate `I:000 not mapped`.
		smart get	This command returns the list of digital inputs that have Smart Action configured. Command Format `smart get` Response Format `Mapped IOs: xxx xxx xxx` xxx – Digital input numbers with Smart Action configured Description Returns a list of digital input channels for which Smart Action is currently configured. Only mapped inputs are included in the response. Example `smart get` `Mapped IOs: 000 001 007` Indicates that Smart Action is configured on Digital Inputs 0, 1, and 7. Notes If no Smart Action is configured, the response may indicate an empty or default state. Use `smart get xxx` for detailed configuration of a specific input.

		smart -i xxx	This command disables the configured digital input for the specified channel. Command Format `smart -i xxx` xxx – Digital input number (Range: 000 to 007) Description Disables the selected digital input channel. Example `smart -i 000` Disables Smart action mapped on digital Input (GPI) 0 Notes Ensure the input number is within the valid range (000–007).
		smart -r xxx	This command disables the configured relay for the specified channel. Command Format `smart -r xxx` xxx – Relay number (Range: 000 to 007) Description Disables the selected relay channel mapped to smart action. Example `smart -r 000` Disables Relay 0 mapped to smart action Notes Ensure the relay number is within the valid range (000–007).
		smart disable	This command disables the Smart Action feature for all input channels. Command Format `smart disable` Description Disables all configured Smart Actions. Once disabled, no digital input will trigger any relay output based on Smart Action logic. Example `smart disable` Disables Smart Action feature for all inputs
		smart [input] [mode] [target_output] [value]	This command configures the Smart Action feature. Smart Action maps digital inputs to relay outputs and automates relay control based on input state. Command Format `smart xxx mode target_output value` xxx – Digital input number (Range: 000 to 007) mode – Defines the trigger condition for the relay L – Trigger when input is LOW H – Trigger when input is HIGH F – Follow mode (relay follows input state) target_output – Relay to be controlled by the selected digital input (Range: 000 to 007) value – Relay output state when triggered 0 – Relay OFF 1 – Relay ON Not required in F (Follow) mode Description Each command links a digital input (same index as xxx) to a relay output. The relay action depends on the selected mode and trigger condition. Examples `smart 000 L 000 1` – When digital input 0 goes LOW, Relay 0 turns ON `smart 001 H 002 0` – When digital input 1 goes HIGH, Relay 2 turns OFF `smart 003 F 003` – Relay 3 follows digital input 3 (LOW - OFF, HIGH - ON) Notes Digital input index corresponds to the input used in the command. Follow mode (F) continuously mirrors input state without delay. If a relay is mapped to relay timer, the same relay cannot be configured with smart action feature One relay can be mapped to only one input, One input can have multiple relays mapped to it
	fs	fs get	This command returns the IO Failsafe configuration for the specified digital input. Command Format `fs get` Response Format `I:xxx M:X G:X V:xxxx` I:xxx – Digital input number M:X – Trigger mode (L: LOW, H: HIGH) G:X – Relay group (e.g., A) V:xxxx – Relay state value (hexadecimal) Description Returns the configured failsafe settings for the selected digital input. Includes trigger mode, relay group, and relay output value. Example `fs get` Returns failsafe configuration for Digital Input 0 Notes If no failsafe is configured, the response will indicate "FS Not Configured".
		fs reset	This command performs a manual reset of the IO Failsafe condition to resume normal device operation. Command Format `fs reset` Description Clears the active failsafe state triggered by a digital input. Restores normal operation of relay outputs and system behavior. Example `fs reset` Clears the failsafe condition and resumes operation Notes Use this command after resolving the condition that triggered the failsafe. If the trigger condition still exists, the failsafe may be reactivated immediately.
		fs disable	This command disables the IO Failsafe feature completely. Command Format `fs disable` Description Disables all configured IO Failsafe behavior. Once disabled, digital inputs will no longer trigger failsafe actions. Example `fs disable` Disables IO Failsafe feature Notes Use the configuration command to reactivate failsafe behavior.
		fs [input] [mode] [relay_group] [relay_value]	This command configures the IO Failsafe feature, enabling the module to automatically set relay states based on a defined digital input condition. Command Format `fs xxx mode G xxxx` xxx – Digital input number On UR8A, only Digital Input 0 is supported mode – Defines the trigger condition L – Trigger when input is LOW H – Trigger when input is HIGH G – Relay group identifier A – Group A (first 16 relays) xxxx – Relay state value (hexadecimal) Description Defines the relay output state when the specified digital input reaches the configured condition. Each bit in the hexadecimal value represents one relay. Bit Representation 0 – Relay OFF 1 – Relay ON Example Value `0003` – 0000 0000 0000 0011 Relays 0 and 1 ON, all others OFF Value Range UR8A: `0000` to `00FF` UR16A: `0000` to `FFFF` Examples `fs 000 L A 0012` When Digital Input 0 goes LOW, relays are set according to 0012 Relay 1 and Relay 4 turn ON, all others turn OFF `fs 000 H A 0012` When Digital Input 0 goes HIGH, relays are set according to 0012 Relay 1 and Relay 4 turn ON, all others turn OFF
9	info	info	This command displays module information, including Smart Action status, Power-on configuration, and IO Failsafe status. Command Format `info` Description Returns a summary of key module configurations in a single response. Helps in quickly verifying system setup and operational status. Example `info` Returns module configuration summary Notes The response format may vary based on firmware version. Use individual commands for detailed configuration of each feature.
10	reboot	reboot	This command performs a soft reset of the device. Command Format `reboot` Description Restarts the device without altering any stored configuration. All settings, including Smart Action, Timer, Failsafe, and credentials, remain unchanged. Example `reboot` Performs a device soft reset Notes The device will briefly disconnect and restart after execution. Use this command to recover from temporary issues or apply configuration changes.
11	fact reset	fact reset	This command performs a factory reset of the device. Command Format `fact reset` Description Restores the device to factory default settings. All configurations, including Smart Action, Timer, Failsafe, credentials, and other user-defined parameters, will be erased. Example `fact reset` Performs a device factory reset Notes The device will briefly disconnect, the LED will blink during the reset process, and the device will restart upon completion. Use this command to recover the device or reset all configurations. This action cannot be undone.

USB Relay Modules