AH500 Programming Manual Symbol: S 1 ： Initial input device Bit S 2 ： For system use only Word D 1 ： Device in which the setting value is stored Word D 2 ： Initial output device Bit n ： Positive/Negative logic Word Explanation: 1. If the instruction is executed, S 1 is defined as the down arrow, S 1 +1 is defined as the up arrow, S 1 +2 is defined as the right arrow, and S 1 +3 is defined as the left arrow. The setting value is stored in D 1 , and it should be within the range between 0 and 9,999. 2. The operand S 1 occupies four consecutive bit devices. 3. S 2 is for system use only. Please do not alter the value in it. 4. The operand D 2 occupies eight consecutive bit devices. 5.
When the conditional contact is not enabled, the eight bit devices starting from the bit device specified by D 2 keep OFF. 6. The operand n should be within the range between 0 and 3. Please refer to the additional remark on the instruction SEGL for more information. 7. When the on-line editing is used, please reset the conditional contact to initialize the instruction. Example: 1. If the instruction is executed, X0.0 is defined as the down arrow, X0.1 is defined as the up arrow, X0.2 is defined as the right arrow, and X0.3 is defined as the left arrow. The setting value is stored in D20, and it should be within the range between 0 and 9,999. 2.
When X1.0 is ON, the digit in the place 10 3 is selected. If the left arrow is pressed, the places are selected in sequence (10 3 →10 0 →10 1 →10 2 →10 3 →10 0 ). 3. If the right arrow is pressed, the places are selected in sequence (10 3 →10 2 →10 1 →10 0 →10 3 →10 2 ). The LED indicators with the corresponding places are connected to Y0.4~Y0.7. When the digits in the places are selected in sequence, the LED indicators are ON in sequence. 4. If the up arrow is pressed, the digit in the place selected changes (0→1→2→…8→9→0→1). If the down arrow is pressed, the digit in the place selected changes (0→9→8→…1→0→9). The new digit is shown on seven-segment display.
6-386 API Instruction code Operand Function 1703 ARWS S, D , D , n 1 2 Arrow keys Device X Y M S T C HC D L SM SR E PR K 16# “$” DF S 1 S 2 D 1 D 2 n Pulse instruction 16-bit instruction (9 steps) 32-bit instruction - AH500 -