Andel Bundguard 5 - Request; Response; Error; Getevent

Bundguard 5 12.01.2022 Rev.4
18
4.1.10.7 Request
Function code: 65 (decimal), 0x41 (hex)
This function will not execute or respond when received addressed to the broadcast (address == 0x00)
ID.
Field
Name
Total bytes
Data type
1
Address ID
1
Unsigned integer
2
Function code (0d65/0x41)
1
Unsigned integer
3
CRC
2
Checksum
4.1.10.8 Response
If the request was correct, the response will be formatted as shown below:
Field
Name
Total
bytes
Data type
1
Address ID
1
Unsigned integer
2
Function code (0d65/0x41)
1
Unsigned integer
3
Number of historic events
1
Unsigned integer
4
CRC
2
Checksum
4.1.10.9 Error
Only one error can be produced by operation of this function. If the processor hardware encounters an
error when retrieving the event count; an error code will be responded back to the master.
The error code will only ever be “Server device failure” – 0x04.
4.1.10.10 getEvent
The getEvent function allows the querying MODBUS master to request an event structure for an event
number. Event numbers increment from 0 to 143. Event 0 always referring to the most recent event,
and event 143 referring to the least recent. This data is from the same source of that shown in the
“History” menu tab of the BundGuard menu system.
4.1.10.11 Request
Function code: 0d66 (decimal), 0x42 (hex)
This function will not execute or respond when received addressed to the broadcast (address == 0x00)
ID.
Field
Name
Total
bytes
Data type
1
Address ID
1
Unsigned integer
2
Function code (0d66/0x42)
1
Unsigned integer
3
Event number
1
Unsigned integer
4
CRC
2
Checksum