Unipulse F701+ - Page 96

89
6 Useful Functions
89
Useful Functions
Chapter
6
02 (0x0002) Return Diagnostic Register (not available for the F701+)
The request frame is returned.
04 (0x0004) Force Listen Only Mode
The slave device is turned to receive only mode.
The slave device will ignore all messages, not operate or respond, but will process the counters and the
event log.
However, the slave device responds to sub-function 1, which will initialize and restart communicat
ion
as well as release the receive only mode.
10 (0x000A) Clear Counters and Diagnostic Register
All counters and diagnostic registers are cleared.
11 (0x000B) Return Bus Message Count
The total number of frames detected by a slave device is read.
These are counted when the slave ID matches or when a message is transmitted simultaneously to all
devices.
[Request]
Function 1 byte 0x08
Sub-function 2 bytes 0x00,
0x02
Data N x 2 bytes Arbitrary 16-bit data
[Response]
Request echo
[Request]
Function 1 byte 0x08
Sub-function 2 bytes 0x00, 0x04
Data 2 bytes 0x00, 0x00
[Response]
None
[Request]
Function 1 byte 0x08
Sub-function 2 bytes 0x00, 0x0A
Data 2 bytes 0x00, 0x00
[Response]
Request echo
[Request]
Function 1 byte 0x08
Sub-function 2 bytes 0x00, 0x0B
Data 2 bytes 0x00, 0x00
[Response]
Function 1 byte 0x08
Sub-function 2 bytes 0x00, 0x0B
Data 2 bytes Mes
sage count