Siemens SIMATIC ET 200pro Original Instructions Manual page 241

Every function comprises one or several blocks that are interconnected with one another.
Figure A-5
Most of the blocks can be adapted to specific applications using parameters.
You cannot change the signal interconnection within the block. However, the interconnection
between blocks can be changed by interconnecting the inputs of a block with the appropriate
outputs of another block.
The signal interconnection of the blocks is realized, contrary to electric circuitry, not using
cables, but in the software.
Figure A-6
Binectors and connectors
Connectors and binectors are used to exchange signals between the individual blocks:
● Connectors are used to interconnect "analog" signals. (e.g. MOP output speed)
● Binectors are used to interconnect "digital" signals. (e.g. 'Enable MOP up' command)
Figure A-7
Binector/connector outputs (CO/BO) are parameters that combine more than one binector
output in a single word (e.g. r0052 CO/BO: status word 1). Each bit in the word represents a
SIMATIC ET 200pro FC-2 converter
Operating Instructions, 04/2015, FW V4.7.3, A5E34257324B AB
Example of a block: Motorized potentiometer (MOP)
Example: Signal interconnection of two blocks for digital input 0
Symbols for binector and connector inputs and outputs
A.4 Interconnecting signals in the inverter
Appendix
241