BECKHOFF BC8000 User Manual
Page 26

Appendix
26
BC8000
Relative byte
address
Bit position
Controller
process image
Position in the
block
46 0
%IB46.0
POS01
46 1
%IB46.1
POS01
46 2
%IB46.2
POS02
46 3
%IB46.3
POS02
46 4
%IB46.4
POS03
46 5
%IB46.5
POS03
46 6
%IB46.6
POS04
47 7
%IB46.7
POS04
47 0
%IB47.0
POS05
47 1
%IB47.1
POS05
47 2
%IB47.2
POS06
47 3
%IB47.3
POS06
47 4
%IB47.4
POS15
47 5
%IB47.5
POS15
47 6
%IB47.6
POS16
47 7
%IB47.7
POS16
48 0
%IB48.0
POS17
Portion for bit-oriented
data, INPUT
48 1
%IB48.1
POS17
Relative byte
address
Bit position
Controller process
image
Position in the
block
46 0
%QB46.0
POS07
46 1
%QB46.1
POS07
46 2
%QB46.2
POS08
46 3
%QB46.3
POS08
46 4
%QB46.4
POS18
Portion for bit-oriented
data, OUTPUT
46 5
%QB46.5
POS18
Positions POS14 and POS21 are not relevant to data exchange. They do
not appear in the list. If a byte is not fully utilized, e.g. %QB46, the bus
terminal controller pads the remaining bits of the byte with zeros.
i
Note
If the KL6001-0020 is removed after successful programming of the
interface, all terminals after address 45 shift 6 bytes downward, that is to
address 40.
The distribution of the process image in the bus terminal controller in
overview:
Output data in the bus
terminal controller
O0
...
byte-oriented data
...
O45
O46.0
bit-oriented data
O46.5
Input data in the bus
terminal controller
I0
...
byte-oriented data
...
I45
I46.0
...
bit-oriented data
...
I48.2