The Messenger monitors generators using CANbus (J1939) and Modbus RTU. Transfer switches are typically monitored using Modbus, but also using the digital inputs of the Messenger.
- GPS coordinates for location
- General purpose closure-to-ground input
- Analog input for fuel level or other sender
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- AC RMS voltages
- AC RMS current
- Reactive Power
- Power Factor
- Real Power
- Apparent Power
- Control and Auto-start mode
- AC Frequency
- Transfer switch position
- On/Off control of transfer switch and generator
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- Engine hours
- RPM
- Battery voltage (switched and unswitched)
- Oil pressure, temperature and level
- Fuel level
- Coolant level and temperature
- Throttle position
- Ambient conditions
- All diagnostic messages reported via DM1 (J1939) or trouble codes (J1708/1587)
- Fault conditions reported through TPCM (J1939)
- User-defined PGN/FMI (J1939) values
- OEM-specific parameters
- Computed values reported daily, including:
- Daily fuel usage and hours
- Maximum and Minimum RPM
- Maximum and Minimum Oil pressure, temperature and level
- Maximum and Minimum Coolant level and temperature
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- CANbus protocol version 2.0 part A and B/Active
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- 100 Modbus RTU registers
- 16- or 32-bit holding, packed digitals, float
- 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
- 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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