Mapping
As already described in the Terminal Configuration section, each Bus Terminal is mapped in the Bus Coupler. In the delivery state, this mapping occurs with the default settings of the Bus Coupler for this terminal. The default setting can be changed with the KS2000 configuration software or with a master configuration software (e.g. TwinCAT System Manager or ComProfibus).
If the terminals are fully evaluated, they occupy memory space in the input and output process image.
The following tables provide information about the terminal mapping, depending on the conditions set in the Bus Coupler.
Key
- Complete evaluation:
The terminal is mapped with control and status byte. - Motorola format:
Motorola or Intel format can be set. - Word alignment:
The terminal is at word limit in the Bus Coupler. - Ch n SB:
status byte for channel n (appears in the input process image). - Ch n CB:
control byte for channel n (appears in the output process image). - Ch n D0:
channel n, data byte 0 (byte with the lowest value) - Ch n D1:
channel n, data byte 1 (byte with the highest value) - "-":
This byte is not used or occupied by the terminal. - res.: reserved:
This byte occupies process data memory, although it is not used.
Further Information