ISPSoft User Manual DVP Series: M1000/ M1001. If users want to use a symbol whose data type is ARRAY, the expression format is Identifier[Index] , for example Ary [1] from the drop-down list of the above diagram. 11.2.3 And and OR Block Contacts in a function block diagram can be connected in series/parallel by means of an AND/OR block. The input nodes and the output nodes of an AND/OR block must represent Boolean devices or symbols whose data types are BOOL. An AND/OR block have 32 input nodes and 32 output nodes at most. Besides, an AND/OR block has at least one output node, or is connected to the next object. Graphic representation Example Example 1:
The contacts M0, M1, and M2 are assigned to the OR block, and the result of the operation is sent to M3. In other words, after M0, M1, and M2 are connected in parallel, the coil M3 will be driven if M0, M1, or M2 is ON. Example 2: The contacts M0, M1, and M2 are assigned to the AND block, and the result of the operation is sent to M3. In other words, after M0, M1, and M2 are connected in series, the coil M3 will be driven if M0, M1, and M2 are ON. 11-12