Beckhoff KL6031 Series, Documentation

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Access from the user program
KL6031/KS6031, KL6041/KS6041 41 Version: 2.1.0
Bit 15 … 15 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Data bytes
reserved 1 0 1 1 1 22 bytes + 1 Control/Status word in the extended
process data image (see
R34.7 [
}
39] )
reserved 0 0 1 1 0 5 bytes + 1 Control/Status byte
reserved 0 0 0 1 1 3 bytes + 1 Control/Status byte
R36 - 63: reserved
5.4 Mapping
The Bus Terminals occupy addresses within the process image of the controller. The assignment of process
data (input and output data) and parameterization data (control and status bytes) to the control addresses is
called mapping. The type of mapping depends on:
• the fieldbus system used
• the terminal type
• the parameterization of the Bus Coupler (conditions), such as
- compact or complex evaluation
- Intel or Motorola format
- word alignment activated or deactivated
The Bus Couplers (BKxxxx, LCxxxx) and Bus Terminal Controllers (BCxxxx, BXxxxx) are supplied with
certain default settings. The default setting can be changed with the KS2000 configuration software or with a
master configuration software (e.g. TwinCAT System Manager or ComProfibus).
The following tables show the mapping depending on different conditions.
Complex evaluation
In the case of complex evaluation, the serial interface terminals occupy addresses in the input and output
process image. Control and Status words can be accessed.
22-byte process image
Complex evaluation in Intel format
Address Input data Output data
Conditions Word offset High byte Low byte High byte Low byte
Complex evaluation: yes
Motorola format: no
Word alignment: any 0 SW CW
1 DataIn 1 DataIn 0 DataOut 1 DataOut 0
2 DataIn 3 DataIn 2 DataOut 3 DataOut 2
3 DataIn 5 DataIn 4 DataOut 5 DataOut 4
4 DataIn 7 DataIn 6 DataOut 7 DataOut 6
5 DataIn 9 DataIn 8 DataOut 9 DataOut 8
6 DataIn 11 DataIn 10 DataOut 11 DataOut 10
7 DataIn 13 DataIn 12 DataOut 13 DataOut 12
8 DataIn 15 DataIn 14 DataOut 15 DataOut 14
9 DataIn 17 DataIn 16 DataOut 17 DataOut 16
10 DataIn 19 DataIn 18 DataOut 19 DataOut 18
11 DataIn 21 DataIn 20 DataOut 21 DataOut 20