Beckhoff KL8001, Документация

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Access from the user program
KL8001 and KL9060 29 Version: 2.0.0
5.1.1.1 Control and status byte 0 in process data mode
Control byte 0 in process data mode
Control byte 0 (CB0) is in the output image [
}
28] and is transferred from the controller to the power terminal.
Bit CB0.7 CB0.6 CB0.5 CB0.4 CB0.3 CB0.2 CB0.1 CB0.0
Name RegAccess R/W DR no.
Key
Bit Name Description
CB0.7 RegAccess 0
bin
Register communication off (process data mode)
CB0.6 R/W 0
bin
Read access
(1
bin
) Because the KL8001 data registers can only be read, write access is not useful.
CB0.5 to
CB0.0 DR no. Data register number:
Enter the number of the
data register [
}
41] that you want to read with input data word 0 here.
Status byte 0 in process data mode
Status byte 0 (SB0) is located in the power terminal's input image [ } 28] , and is transmitted from the power
terminal to the controller.
Bit SB0.7 SB0.6 SB0.5 SB0.4 SB0.3 SB0.2 SB0.1 SB0.0
Name RegAccess ES Error Info DR no.
Key
Bit Name Description
SB0.7 RegAccess 0
bin
Acknowledgement for process data access
SB0.6 ES Error Info 1
bin
The lowest nibble (ES.3 to ES.0) in the extended status byte [
}
31] contains error information.
Evaluate the extended status byte!
SB0.5 to
SB0.0 DR no.
The number of the data register [ } 41] that is to be read.
5.1.1.2 Control and status byte 0 for register communication
Control byte 0 in register communication
Control byte 0 (CB0) is in the output image [ } 28] and is transferred from the controller to the power terminal.
Bit CB0.7 CB0.6 CB0.5 CB0.4 CB0.3 CB0.2 CB0.1 CB0.0
Name RegAccess R/W PR no.
Key
Bit Name Description
CB0.7 RegAccess 1
bin
Register communication switched on
CB0.6 R/W 0
bin
Read access
1
bin
Write access
CB0.5 to
CB0.0 PR no. Parameter register number:
Enter the number of the
parameter register [
}
33] that you want to
• to read with input data word 0 or
• write to with output data word 0.
WARNING
Invalid process data during register communication!
It is not possible to access the data registers during register communication! Process data
that may still be displayed is not valid!