SignalFire MBS-CBBL, Interface Manual

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Rev 5.8 SignalFire Telemetry
12
Remote Modbus Register Mapping
In addition to any pre-configured registers, the Modbus Stick will send system
information in 16-bit registers in the table below. This data is accessible at any of the one
or more Slave IDs connected to the Modbus Stick.
Register
Register Address
(Offset)
Description
49986 9985 or 65522 Checkin Interval (in seconds)
49987 9986 or 65523 Low Battery Alarm (0=no errors, 1=low battery)
65524 9987 or 65524 Major revision number for the mainboard
65525 9988 or 65525 Minor revision number for the mainboard
65526 9989 or 65526 Major revision number for the radio
65527 9990 or 65527 Minor revision number for the radio
65528 9991 or 65528 High 16 bits of SFTS node address
65529 9992 or 65529 Low 16 bits of SFTS node address (the radio ID)
65530 9993 or 65530 Slave ID readback
65531 9994 or 65531
Received signal strength of last packet from the slave
65532 9995 or 65532 System voltage of the Modbus client in millivolts
65533 9996 or 65533 Minutes until this slave will time out, unless new data is received
65534 9997 or 65534 Number of registers cached for this slave device
65535 9998 or 65535 Remote device type (0 for Modbus Client Node)
Revision History
Revision Date Changes/Updates
5.4 7/23/13
5.5 6/24/15 Updated Design
5.6 8/3/16 Added section on encryption
5.7 3/31/20 Remote Modbus R/W
5.8 7/9/2020 Updated Modbus program steps menu, new checkin register