The Messenger monitors equipment and devices using Modbus RTU over RS-485 or RS-232.
All values read can be automatically converted into engineering units, compared to user-specified limits (2-high and 2-low) and the web-based back-end alerted immediatly upon a limit violation.
- 100 Modbus RTU register values
- GPS coordinates for location (can be removed if not required for the application)
- General purpose closure-to-ground inputs
- Analog input 0-10V (0-20ma or resistive optional)
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- Raw value or scaled into engineering units
- Max, Min over the day
- Amount of time in a range, up to 4 ranges can be specified per value monitored
- Number of times moving into a range
- 2 high and 2 low limits specified per value monitored
- Report immediately when any limit has been violated
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- 100 Modbus RTU registers
- 16- or 32-bit holding, packed digitals, float, or unpacked digitals
- Data can be raw Modbus or automatically scaled into engineering units
- Reverse ordering supported
- Bits can be masked
- On/Off control supported for many manufacturers via Modbus
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- RS232/RS485 for Modbus
- RS232 for debug or configuration
- External CDMA or Satellite modems
- Support OEM-specific communication
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- Real-Time Clock
- Programming
- Event log
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- GSM-GPRS
- Wi-Fi
- CDMA
- Satellite
- Serial
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- FCC, PTCRB and ATT approvals for GSM/GPRS end-user applications
- Operating vibration: exceeds SAE J1455 vibration levels
- Operating shock: exceeds SAE J1455 shock levels
- Enclosure: exceeds IP65/NEMA 4X
- RoHS compliant
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- Extreme low power mode for battery-powered applications
- Automatic switch out of low power on: movement, engine on, time
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- 512k FLASH for application, loadable OTA or via serial connection
- 512k low-low power SRAM, battery backed
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- Serial port function - Debug, Other
- Serial port interface - RS232 or RS485
- Baud rate
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- Last 500 significant events
- Accessible over-the-air
- Accessible locally via serial port
- Battery backed
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- Power modes - off, low, full
- Cellular/Wireless status and signal strength
- GPS status
- CAN status
- Serial port status
- OEM specific
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- Up to 3 digital (closure to ground) inputs
- Analog input - voltage, ma or resistive
- Digital output (closure to ground)
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- Receive commands for changing configuration
- Receive commands for over-the-air direct communications with internal menuing system
- On-demand reporting of values
- OEM specific
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- 3.25" x 3.95"
- Operating power: 8-32VDC
- Sleep mode - less than 6 ma @ 12VDC
- Monitoring mode - 110ma @ 12VDC
- GPRS transmit mode - 600ma peak @ 12VDC
- Industrial temperature range -40 to +85C
- Watertight industrial enclosure
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