Beckhoff KL3403 Series Documentation page 49

Bit CB1.7
Name RegAccess
Key
Bit Name
CB1.7 RegAccess
CB1.6 R/W
CB1.5 to CB1.0 Reg. no.
No process data access 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!
Status byte 1 in register communication
The status byte 1 (SB1) is located in the input image [} 46], and is transmitted from the KL3403 to the
controller.
Bit SB1.7
Name RegAccess
Key
Bit Name
SB1.7 RegAccess
SB1.6 R
SB1.5 to SB1.0 Reg. no.
Control and status byte of the second channel (L2)
Control byte 2 (CB2) is in output image [} 46] and is transferred by the controller to the KL3403 (structure
and application see Control byte 0 [} 47]). Pay attention to the assignment of the control bytes to the process
input data words in process data mode.
Status byte 2 (SB2) is in the input image [} 46] and is transferred from the KL3403 to the controller
(configuration and application see Status byte 0 [} 48]).
Control and status byte of the third channel (L3)
Control byte 3 (CB3) is in output image [} 46] and is transferred by the controller to the KL3403 (structure
and application see Control byte 0). Pay attention to the assignment of the control bytes to the process input
data words in process data mode.
Status byte 3 (SB3) is in the input image [} 46] and is transferred from the KL3403 to the controller
(configuration and application see Status byte 0).
KL3403
CB1.6 CB1.5
R/W 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 [} 51] that you want to
- read with input data word 1 read, or
- write with output data word 1.
SB1.6 SB1.5
R Reg. no.
Description
1 Acknowledgment for register access
bin
0 Read access
bin
Number of the register that was read or written.
Version: 3.1.0
CB1.4 CB1.3 CB1.2
CAUTION
SB1.4 SB1.3 SB1.2
Access from the user program
CB1.1 CB1.0
SB1.1 SB1.0
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