Cabinet Guard
Protect and monitor the heart of your system - in real time
The Helmholz Cabinet Guard continuously monitors the conditions inside the enclosure, such as temperature, humidity, air pressure, vibration and the condition of the enclosure door (unauthorised access). By monitoring these environmental parameters, the Cabinet Guard can react to potential problems at an early stage, trigger alarms and thus prevent failures or damage. This helps to maintain system integrity and operational efficiency.
€279.00
Cabinet Guard
Monitoring of system components is now widely used to increase system availability and carry out maintenance work cost-effectively. The focus is usually on external actuators and sensors, while the control cabinet as the heart of the system often receives less attention. However, the inside of the enclosure is also exposed to numerous hazards and the effects of ageing. Temperature, humidity, air pressure, vibration and shocks are typical environmental factors that can affect the service life of the cabinet.
With a Cabinet Guard in the control cabinet, all this information can be monitored, analysed or alarms generated, completely independently of the PLC.
The Cabinet Guard is configured conveniently via a web interface. The measured values can be easily forwarded to other components or higher-level systems (host computer, MES, cloud) via MQTT and ModbusTCP.
At the same time, the measured values can be saved to an SD card for long-term recording, which also enables long-term evaluation of ageing phenomena. To improve the efficiency of the system, the recordings of the control cabinets of different machines can be compared and thus optimisation possibilities can be found in the design.
Thanks to its distance sensor, the Cabinet Guard can also monitor the opening of the enclosure doors. The Cabinet Guard is therefore also an important sensor when considering the security of a machine.
- Condition monitoring in pocket format
- Integrated sensors for temperature, air pressure, humidity
- Detection of movement, position, vibration, shock
- Optional connection for external NTC temperature sensors
- Door monitoring of the control cabinet via distance sensor or digital input
- All-purpose input(s) for digital signals
- Measurement of voltage supply
- Configuration via website
- Transmission of status/value information via MQTT
- ModbusTCP server for data provision
- Digital outputs for alarm signalling
- SD card for long-term logging
- Very compact design for DIN-rail
Cabinet Guard
General
- Order number700-210-1AA01
- NameCabinet Guard
- Scope of deliveryCabinet Guard with power supply plug
- Dimensions (D x W x H)55,6 x 25 x 109 mm
- WeightCa. 180 g
Ethernet interface (X1)
- Connection1 x RJ45
- Transmission rate10/100 Mbps
- ProtocolHTTPS web server for configuration and diagnostics; ModbusTCP; MQTT
Digital IOs (X2)
- Inputs5x Type 3 as of DIN EN 61131-2; 2 Inputs can optionally be used as outputs
- Output2x 200mA 24V DC, with electronic fuse
Analog inputs (X3)
- Count2
- TypeNTC 10 kOhm, 2-wire
- Measuring range-50°C … +350°C / 0 … 450 kOhm
- Resolution+-0,1°C + Sensor Tolerance at 25°C or +-25 Ohm at 10kOhm
Environmental sensor (intern)
- Temperature measurement-20°C .. +80°C, +-2°C
- Humidity0% r.H. .. 100% r.H., Tol.: +-5% @25°C
- Air pressure measurement300 … 1100 hPa, +-1,7 hPa
Distance sensor
- TypeOptical Time-of-flight (TOF), Infrared (940nm)
- Distance / ResolutionUp to 100 cm / +-6% for white targets
Vibration sensor
- Function3-axis accelerometer: vibration, shock, acceleration, orientation
- Resolution+-16g, bandwidth: 1,3kHz
Voltage measurement
- Resolution18V ... 30V, accuracy: +-3%
Status indication
- Function status4 LEDs (Power, Run, Connection, Alarm)
- Ethernet status2 LEDs (Connection, Traffic)
Power supply
- VoltageDC 24 V, 18 … 30 V DC
- Current consumptionmax. 85 mA at 24 V DC
- power lossmax. 2 W
Ambient conditions
- Ambient temperature-30°C ... +75°C
- Transport and storage temperature-40°C ... +85°C
- Relative humidityUp to 95 % without condensation
- Protection ratingIP20
- Mounting positionupright on DIN-rail
- ApprovalsCE, UL (in preparation)
- RoHS, ReachRoHS (2011/65/EU); DIN EN IEC 63000 2019-05
- EMVDIN EN IEC 61000-6-2 2019-11, DIN EN IEC 61000-6-4 2020-09
- Vibration and ShockDIN EN 60068-2-8:2008 “Vibration” DIN EN 60068-27:2010 “Shock“ DIN EN 60068-2-31:2009-04 “Free fall"
Cabinet Guard
| Name | Version | Size | |
| Cabinet Guard Manual | V2 | 2,3 MB | Download |
| EU Declaration of conformity | 2026-03-10 | 83 KB | Download |
| Name | Version | Size | |
| Cabinet Guard Firmware | V1.01.011 | 2,75 MB | Download |
| Cabinet Guard Firmware History | V1.01.011 | Download |
| Name | Version | Size | |
| Cabinet Guard – Protects the heart of your system | 2-2026 | 1,1 MB | Download |
Cabinet Guard
Monitoring of system components is now widely used to increase system availability and carry out maintenance work cost-effectively. The focus is usually on external actuators and sensors, while the control cabinet as the heart of the system often receives less attention. However, the inside of the enclosure is also exposed to numerous hazards and the effects of ageing. Temperature, humidity, air pressure, vibration and shocks are typical environmental factors that can affect the service life of the cabinet.
With a Cabinet Guard in the control cabinet, all this information can be monitored, analysed or alarms generated, completely independently of the PLC.
The Cabinet Guard is configured conveniently via a web interface. The measured values can be easily forwarded to other components or higher-level systems (host computer, MES, cloud) via MQTT and ModbusTCP.
At the same time, the measured values can be saved to an SD card for long-term recording, which also enables long-term evaluation of ageing phenomena. To improve the efficiency of the system, the recordings of the control cabinets of different machines can be compared and thus optimisation possibilities can be found in the design.
Thanks to its distance sensor, the Cabinet Guard can also monitor the opening of the enclosure doors. The Cabinet Guard is therefore also an important sensor when considering the security of a machine.
- Condition monitoring in pocket format
- Integrated sensors for temperature, air pressure, humidity
- Detection of movement, position, vibration, shock
- Optional connection for external NTC temperature sensors
- Door monitoring of the control cabinet via distance sensor or digital input
- All-purpose input(s) for digital signals
- Measurement of voltage supply
- Configuration via website
- Transmission of status/value information via MQTT
- ModbusTCP server for data provision
- Digital outputs for alarm signalling
- SD card for long-term logging
- Very compact design for DIN-rail
Cabinet Guard
General
- Order number700-210-1AA01
- NameCabinet Guard
- Scope of deliveryCabinet Guard with power supply plug
- Dimensions (D x W x H)55,6 x 25 x 109 mm
- WeightCa. 180 g
Ethernet interface (X1)
- Connection1 x RJ45
- Transmission rate10/100 Mbps
- ProtocolHTTPS web server for configuration and diagnostics; ModbusTCP; MQTT
Digital IOs (X2)
- Inputs5x Type 3 as of DIN EN 61131-2; 2 Inputs can optionally be used as outputs
- Output2x 200mA 24V DC, with electronic fuse
Analog inputs (X3)
- Count2
- TypeNTC 10 kOhm, 2-wire
- Measuring range-50°C … +350°C / 0 … 450 kOhm
- Resolution+-0,1°C + Sensor Tolerance at 25°C or +-25 Ohm at 10kOhm
Environmental sensor (intern)
- Temperature measurement-20°C .. +80°C, +-2°C
- Humidity0% r.H. .. 100% r.H., Tol.: +-5% @25°C
- Air pressure measurement300 … 1100 hPa, +-1,7 hPa
Distance sensor
- TypeOptical Time-of-flight (TOF), Infrared (940nm)
- Distance / ResolutionUp to 100 cm / +-6% for white targets
Vibration sensor
- Function3-axis accelerometer: vibration, shock, acceleration, orientation
- Resolution+-16g, bandwidth: 1,3kHz
Voltage measurement
- Resolution18V ... 30V, accuracy: +-3%
Status indication
- Function status4 LEDs (Power, Run, Connection, Alarm)
- Ethernet status2 LEDs (Connection, Traffic)
Power supply
- VoltageDC 24 V, 18 … 30 V DC
- Current consumptionmax. 85 mA at 24 V DC
- power lossmax. 2 W
Ambient conditions
- Ambient temperature-30°C ... +75°C
- Transport and storage temperature-40°C ... +85°C
- Relative humidityUp to 95 % without condensation
- Protection ratingIP20
- Mounting positionupright on DIN-rail
- ApprovalsCE, UL (in preparation)
- RoHS, ReachRoHS (2011/65/EU); DIN EN IEC 63000 2019-05
- EMVDIN EN IEC 61000-6-2 2019-11, DIN EN IEC 61000-6-4 2020-09
- Vibration and ShockDIN EN 60068-2-8:2008 “Vibration” DIN EN 60068-27:2010 “Shock“ DIN EN 60068-2-31:2009-04 “Free fall"
Cabinet Guard
| Name | Version | Size | |
| Cabinet Guard Manual | V2 | 2,3 MB | Download |
| EU Declaration of conformity | 2026-03-10 | 83 KB | Download |
| Name | Version | Size | |
| Cabinet Guard Firmware | V1.01.011 | 2,75 MB | Download |
| Cabinet Guard Firmware History | V1.01.011 | Download |
| Name | Version | Size | |
| Cabinet Guard – Protects the heart of your system | 2-2026 | 1,1 MB | Download |
