Register Communication - Beckhoff KL3208 Manual

Access from the user program
5.2.2

Register communication

Control byte 1 (in register communication)
Control byte 1 (CB1) is located in the output image [} 38], and is transmitted from the controller to the
terminal.
Bit CB1.7 CB1.6
Name RegAccess R/W
Key
Bit Name Description
CB1.7 RegAccess 1
CB1.6 R/W 0
1
CB1.5 to Reg. no. Register number:
CB1.0
Enter the number of the register [} 41] that you
Status byte 1 (in register communication)
The status byte 1 (SB1) is located in the input image [} 38] and is transmitted from terminal to the controller.
Bit SB1.7 SB1.6
Name RegAccess R/W
Key
Bit Name Description
SB1.7 RegAccess 1
SB1.6 R 0
SB1.5 to Reg. no. Number of the register that was read or written.
SB1.0
40
CB1.5
Reg. no.
Register communication switched on
bin
Read access
bin
Write access
bin
• want to read with input data word DataIn [} 38] or
• want to write with output data word DataOut [} 38].
SB1.5
Reg. no.
Acknowledgement for register access
bin
Read access
bin
Version: 3.3.0
CB1.4 CB1.3
SB1.4 SB1.3
CB1.2 CB1.1
SB1.2 SB1.1
KL3208, KL3228/KS3228
CB1.0
SB1.0