Mapping - Beckhoff KS31 2 Series Manual

Data structures
KL3172-0000
Voltage
0 V
2 V
KL3172-0500
Voltage
0 V
500 mV
KL3172-1000
Voltage
0 V
1 V
KL3182-0000
Voltage
-2 V
+2 V
5.2

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
42
Decimal
0
65535
Decimal
0
65535
Decimal
0
65535
Decimal
-32768
+32767
Version: 2.6.0
Hexadecimal
0x0000
0xFFFF
Hexadecimal
0x0000
0xFFFF
Hexadecimal
0x0000
0xFFFF
Hexadecimal
0x8000
0x7FFF
KL31x2/KS31x2