Process Image - Beckhoff KL5151-0000 Documentation

Register communication
Control byte 1 in register communication
Control byte 1 (CB1) is located in the output image, and is transmitted from the controller to the terminal.
Bit CB1.7 CB1.6
Name RegAccess R/W
Legend
Bit Name
CB1.7 RegAccess
CB1.6 R/W
CB1.5 to CB1.0 Reg. no.
No valid process data during the register communication!
It is not possible to access the data registers during register communication! Process data
that may still be displayed is not valid!
CAUTION
Status byte 1 in register communication
The status byte 1 (SB1) is located in the input image, and is transmitted from terminal to the controller.
Bit SB1.7 SB1.6
Name RegAccess R
Legend
Bit Name
SB1.7 RegAccess
SB1.6 R
SB1.5 to SB1.0 Reg. no.
Control byte 2 and status byte 2
Control byte 2 and status byte 2 (CB2 and SB2) are not used.
6.3 KL5152-0000 (KL5150-0050)
6.3.1

Process image

The terminal can be operated with variously sized process images:
• compact process image
• compact process image on Bus Coupler that is set to complete process image (e.g. Lightbus)
• complete process image
The compact process image is activated in the delivery condition of the KL5151-0050. The size of the
process image can be specified through bit R32.6 [} 46] of the feature register.
KL5151/KS5151, KL5152/KS5152
CB1.5 CB1.4
Reg. no.
Description
1 Register communication switched on
bin
0 Read access
bin
1 Write access
bin
Register number:
Enter the number of the register [} 44] that you
- want to read with input data word 0 or
- write to with output data word 0.
SB1.5 SB1.4
Reg. no.
Description
1 Acknowledgement for register access
bin
0 Read access
bin
Number of the register that was read or written.
Version: 2.0.0
Access from the user program
CB1.3 CB1.2
SB1.3 SB1.2 SB1.1
CB1.1 CB1.0
SB1.0
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