ProgrammingABB Control - AC 31 Page 5-351SBC 260400 R1001-b 06.995.3. NAND operationThe output has a 0 status if all the inputs have a 1 status.%O62.00%I62.01%I62.00%I62.00%I62.01&%O62.00A NAND diagram has the same function as an OR diagram with the inputs inverted.%O62.00%I62.01%I62.00%I62.00%I62.01/%O62.005.4. Operation ORThe status of an OR diagram output is 1, if at least one of the inputs has a status of 1.The figure to the left represents a ladder diagram OR operation with three inputs. The numberof contacts, which may be placed in parallel, is unlimited.The diagram to the right represents the same function with a function block. The number ofinputs for an OR function block is limited to a maximum of 128.%O62.00%I62.01%I62.00%I62.00%I62.01/%I62.02%I62.02 %O62.00
