KL31x2 - Two Channel Accurate Analog Terminals

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 full evaluation
Intel or Motorola format
word alignment switched on or off

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. For information about the contents of the individual bytes please refer to the pages Process image and Control and status byte.

 

Compact evaluation

For compact evaluation, the analog input terminals only occupy addresses in the input process image. Control and status bytes cannot be accessed.

 
 

Compact evaluation in Intel format

Default mapping for CANopen, CANCAL, DeviceNet, ControlNet, Modbus, RS232 and RS485 coupler

 
 
Address
Input data
Output data
Requirements
Word offset
High byte
Low byte
High byte
Low byte
Complete evaluation: no
Motorola format: no
Word alignment: any
0
Ch1 D1
Ch1 D0
-
-
1
Ch2 D1
Ch2 D0
-
-
 
 

Compact evaluation in Motorola format

Default mapping for PROFIBUS and Interbus coupler

 
 
Address
Input data
Output data
Requirements
Word offset
High byte
Low byte
High byte
Low byte 
Complete evaluation: no
Motorola format: yes
Word alignment: any
0
Ch1 D0
Ch1 D1
-
-
1
Ch2 D0
Ch2 D1
-
-
 
 

Complete evaluation

For complete evaluation, the analog input terminals occupy addresses in the input and output process image. Control and status bytes can be accessed.

Complete evaluation in Intel format

 
 
Address
Input data
Output data
Requirements
Word offset
High byte
Low byte
High byte
Low byte
Complete evaluation: yes
Motorola format: no
Word alignment: no
0
Ch1 D0
SB1
Ch1 D0
CB1
1
SB2
Ch1 D1
CB2
Ch1 D1
2
Ch2 D1
Ch2 D0
Ch2 D1
Ch2 D0

Complete evaluation in Motorola format

 
 
Address
Input data
Output data
Requirements
Word offset
High byte
Low byte
High byte
Low byte
Complete evaluation: yes
Motorola format: yes
Word alignment: no
0
Ch1 D1
SB1
Ch1 D1
CB1
1
SB2
Ch1 D0
CB2
Ch1 D0
2
Ch2 D0
Ch2 D1
Ch2 D0
Ch2 D1
 
 

Complete evaluation in Intel format with word alignment

Default mapping for Lightbus, EtherCAT and Ethernet coupler as well as Bus Terminal Controllers (BCxxxx, BXxxxx)

 
 
Address
Input data
Output data
Requirements
Word offset
High byte
Low byte
High byte
Low byte
Complete evaluation: yes
Motorola format: no
Word alignment: yes
0
reserved
SB1
reserved
CB1
1
Ch1 D1
Ch1 D0
Ch1 D1
Ch1 D0
2
reserved
SB2
reserved
CB2
3
Ch2 D1
Ch2 D0
Ch2 D1
Ch2 D0

Complete evaluation in Motorola format with word alignment

 
 
Address
Input data
Output data
Requirements
Word offset
High byte
Low byte
High byte
Low byte
Complete evaluation: yes
Motorola format: yes
Word alignment: yes
0
reserved
SB1
reserved
CB1
1
Ch1 D0
Ch1 D1
Ch1 D0
Ch1 D1
2
reserved
SB2
reserved
CB2
3
Ch2 D0
Ch2 D1
Ch2 D0
Ch2 D1
 
 

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.