User Manual

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7 M ODBUS REGISTER
All parameters are read only holding registers and can be read by an external MODBUS RTU master
device via “Read hold register” commands. It is possible to read multiple registers with one command
by changing the requested data length. All register contains 16 bits data. If data is requested beyond
the last available register the data is cut-off at the end and the reply will have the corrected data length.
The data has the most significant byte first (MSB first) as this is the most common way to format the
16 bits register content in MODBUS RTU.
Register Name Description length
40000 Product name Always replies with the string "NKB1310" 20
40020 Version
Firmware version Major revision in
high byte, minor revision in lower byte
1
40021 Reboots Number of reboots since first started 1
40023 Sounder state
External sounder state:
0 = IDLE, 1 = OPEN, 2 = SHORTED, 3 = ACTIVATED
1
40030 Current event state: fault exting open 1 = Active, 0 = Not active 1
40031 Current event state: fault exting shorted 1 = Active, 0 = Not active 1
40032 Current event state: fault firezone 1 open 1 = Active, 0 = Not active 1
40033 Current event state: fault firezone 1 shorted 1 = Active, 0 = Not active 1
40034 Current event state: fault firezone 2 open 1 = Active, 0 = Not active 1
40035 Current event state: fault firezone 2 shorted 1 = Active, 0 = Not active 1
40036 Current event state: fault sounder open 1 = Active, 0 = Not active 1
40037 Current event state: fault sounder shorted 1 = Active, 0 = Not active 1
40038 Current event state: fault external hold open 1 = Active, 0 = Not active 1
40039 Current event state: fault external hold shorted 1 = Active, 0 = Not active 1
40040 Current event state: fault external hold midrange 1 = Active, 0 = Not active 1
40041 Current event state: fault external release open 1 = Active, 0 = Not active 1
40042 Current event state: fault external release shorted 1 = Active, 0 = Not active 1
40043 Current event state: fault external release midrange 1 = Active, 0 = Not active 1
40044 Current event state: fault power disconnected 1 = Active, 0 = Not active 1
40045 Current event state: external release 1 = Active, 0 = Not active 1
40046 Current event state: external hold 1 = Active, 0 = Not active 1
40047 Current event state: firezone0 fire 1 = Active, 0 = Not active 1
40048 Current event state: firezone1 fire 1 = Active, 0 = Not active 1
40050 Current event state: charged cap 1 = Active, 0 = Not active 1
40053 Current event state: vehicle mode 1 = Active, 0 = Not active 1
40054 Current event state: backup power mode 1 = Active, 0 = Not active 1
40055 Current event state: usb power connected 1 = Active, 0 = Not active 1
40080 Event count: fault exting open Nr. Of events occurred since reboot 1
40081 Event count: fault exting shorted Nr. Of events occurred since reboot 1
40082 Event count: fault firezone 1 open Nr. Of events occurred since reboot 1
40083 Event count: fault firezone 1 shorted Nr. Of events occurred since reboot 1
40084 Event count: fault firezone 2 open Nr. Of events occurred since reboot 1
40085 Event count: fault firezone 2 shorted Nr. Of events occurred since reboot 1
40086 Event count: fault sounder open Nr. Of events occurred since reboot 1
40087 Event count: fault sounder shorted Nr. Of events occurred since reboot 1