BECKHOFF C1220 - Manual (Page 10)

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Software description of functions 10
Beckhoff Lightbus - PC interface card C1220
Address Address bits Contents
0xD02 Function number
(1 to 0xFF)
0xD03 Argument 0
.. ..
0xDnn Argument n
.. ..
0xDFF ..
Sequence of a handshake :0C00 0x80 Data Valid Host = 1
:0D00 0x40 DataQuit C1220 = 1
:0C00 0x00 Data Valid Host = 0
:0D00 0x00 Data Quit C1220 = 0
. . . Function execution
:0D00 0x80 Data Valid C1220 = 1
:0C00 0x40 Data Quit Host = 1
:0D00 0x00 Data Valid C1220 = 0
:0C00 0x00 Data Quit Host = 0
Existing functions No. Function
0x01 FIBRE-OPTIC RESET
0x02 Query code word
0x03 Query software version
0x04 Query parity error
0x05 Attenuation test
0x06 Count modules
0x07 Address test
0x08 Continuous sending
0x09 Software RESET
0x0a Fracture point test
0x0b Transfer freely programmable communication
0x0c Reinitialize CDL management
0x0d reserved
0x0e reserved
0x0f Interrupt mask
0x10 Transfer CDL configuration
0x11 reserved
0x12 Cyclic communication
0x13 reserved
0x14 Initialize string communication
0x15 Log in string node ???
0xff Invalid function request