Logical controllers' programming 4- Treatment of Data 4.1- Comparison of Data Programming

Logical controllers' programming CMP This instruction allows to compare two numeric values being the result dice for the state of three special relays Comparison of Data comparison The instruction CMP is always preceded by a logical condition that when it is ON it allows the accomplishment of the comparison.

Logical controllers' programming Whenever this instruction is executed, the value contained in 001 is compared, with the value contained in Comparison of Data CMP

Logical controllers' programming 4.1- Comparison of Data CMP If 1 > 2 the relay is On If 1 < 2 the relay is On If 1 = 2 the relay is On

Logical controllers' programming 4.1- Comparison of Data CMP These special relays referred previously depends on controller for controller, for the that the user will have to discover in each controller which the relays that it allow to do it these functions.

Logical controllers' programming MOV The instruction MOVE it allows to copy the value contained in 001 for the expressed destiny in 002, whenever the logical condition that precedes this instruction is ON Transfer of Data

Logical controllers' programming Example of application of the instruction MOVE The instruction MOV copies the Counters's content (001) for the channel of exits (010). The Counter decrease to the rhythm of the pulse generated by the special relay Transfer of data

Logical controllers' programming Example of application of the instruction MOVE reset On When the counter reaches 0 (zero) automatically it gives him the counter's reset and east returns to the initial value. So that the function Move it is always executed, it has of being always preceded by a special relay On 4.2- Transfer of data

Logical controllers' programming The function SHIFT allows to implement a flag displacement beginning in to Word 001 to end in to Word Displacement of Data SFT

Logical controllers' programming 4.3- Displacement of Data SFT smaller equal To Word 001 it should have a smaller address or equal to Word 002 and the two should belong to the same area of memory. This instruction has to always be controlled by three logical conditions.

Logical controllers' programming 4.3- Displacement of Data SFT  The first defines the state of the bit that enters in the channel 001. In the moment of the displacement, the bit 0 (zero) of the word 001 it will have the logical state of this condition.  The second, it defines the moment of the displacement, that is verified whenever there is a transition of OFF for On in this condition. On Off.  The third, are the condition of RESET. When its state is On, the bits of the words affected by the function SHIFT, are forced Off.