ORB (Or Block): Multitouch circuits connected in parallel directive.
ANB (And Block): Multitouch circuit block directives connected in series.
Multitouch ORB instructions circuit block (usually a series circuit) circuit in front of and parallel, with no component number, equivalent circuit between a vertical line on the right. Parallel circuit to start contacts with LD or LDI instruction, after completing the circuit internal connections, parallel with the circuit in front of it with ORB directives.
ANB command multitouch circuit block (usually parallel circuit block) and in front of the anb, with no component number.
ANB instruction is equivalent to two serial connections between circuit blocks, which can also be viewed as the circuit on the right block of LD.
Series circuit to start contacts with LD or LDI instruction, after completing the two circuit internal connections, with ANB command to concatenate it with the front of the circuit.
PLC ONE 