Beckhoff KL31 2 Series, Документация

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Access from the user program
KL31x2 42 Version: 2.4.0
Key
Complete evaluation: In addition to the process data, the control and status bytes are also mapped into the
address space.
Motorola format: Motorola or Intel format can be set.
Word alignment: In order for the channel address range to commence at a word boundary, empty bytes are
inserted into the process image as appropriate.
SB n: Status byte for channel n (appears in the input process image).
CB n: Control byte for channel n (appears in the output process image).
Ch n D0: channel n, lower-value data byte
Ch n D1: channel n, higher-value data byte
reserved: This byte is assigned to the process data memory, although it has no function.
"-": This byte is not assigned or used by the terminal/module.
5.3 Control and status byte
Channel 1
Process data mode
Control byte 1 (for process data mode)
Control byte 1 (CB1) is located in the output image [ } 39] , and is transmitted from the controller to the
terminal.
Bit CB1.7 CB1.6 CB1.5 CB1.4 CB1.3 CB1.2 CB1.1 CB1.0
Name RegAccess - - - - - CaliDisReq StartManC
ali
Key
Bit Name Description
CB1.7 RegAccess 0
bin
Register communication off (process data mode)
CB1.6 to CB1.2 - 0
bin
reserved
CB1.1 CaliDisReq 1
bin
Blocking automatic calibration
CB1.0 StartManCali 1
bin
start manual calibration
Status byte 1 (for process data mode)
The status byte 1 (SB1) is located in the input image [
}
39] and is transmitted from terminal to the controller.
Bit SB1.7 SB1.6 SB1.5 SB1.4 SB1.3 SB1.2 SB1.1 SB1.0
Name RegAccess Error StateThreshold2 StateThreshold1 Overload Underload