BECKHOFF BK7000 - Manual (Page 25)

Appendix
BK 7000 24
Appendix
Sample arrangement of a process image in
the bus coupler
The following example will illustrate the assignment of input/output chan-
nels to the process image. Our sample construction is to consist of the
following bus terminal components:
For this configuration
Position Function component on the track
the bus coupler will create POS01 Bus coupler
the list of assignments POS02 2-channel digital input
shown below POS03 2-channel digital input
POS04 2-channel digital input
POS05 2-channel digital input
POS06 2-channel digital input
POS07 2-channel digital output
POS08 2-channel digital output
POS09 2-channel digital output
POS10 2-channel analog input
POS11 2-channel analog output
POS12 2-channel analog output
POS13 2-channel analog input
POS14 Power input terminal
POS15 2-channel digital input
POS16 2-channel digital input
POS17 2-channel digital input
POS18 2-channel digital output
POS19 2-channel digital output
POS20 2-channel analog output
POS21 End terminal
Besides transfer of the user information signal, when using analog termi-
nals the control/status byte is also available via the process image by pa-
rameterisation of a three-byte channel (see PROFIBUS-DP).
Area for byte-oriented
data, analog outputs
Relative byte
address
Bit position Process image in
the control unit Position in the
block
0, 1 none O0, O1 POS11
2, 3 none O2, O3 POS11
4, 5 none O4, O5 POS12
6, 7, none O6, O7 POS12
8, 9 none O8, O9 POS20
10, 11 none O10, O11 POS20