AH500 Programming Manual API 1702 Symbol: S 1 ： Initial input device Bit S 2 ： For system use only Word D 1 ： Initial output device Bit D 2 ： Device in which the value is stored Word n ： Number of DIP switches Word Explanation: 1. The four or eight external inputs starting from the input specified by S 1 are connected to the four external outputs starting from the output specified by D 1 to form a four-digit DIP switch or two four-digit DIP switches. The value that users enter by pressing the DIP switch is stored in D 2 . Whether there is one four-digit DIP switch or two four-digit DIP switches depends on n . 2. If n is 1, the operand D 2 occupies one register.
If n is 2, the operand D 2 occupies two registers. 3. S 2 and S 2 +1, which are for system use only, occupy two devices. Please do not alter the values in these devices. 4. After the execution of the instruction is complete, SM694 is ON for a scan cycle. 5. When the conditional contact is not enabled, the four external outputs starting from the output specified by D 1 keep OFF. 6. When the on-line editing is used, please reset the conditional contact to initialize the instruction. Example: 1. X0.0~X0.3 are connected to Y0.0~Y0.3 to form the first DIP switch, and X0.4~X0.7 are connected to Y0.0~Y0.3 to form the second DIP switch. When X1.0 is ON, the instruction is executed.
The value that users enter by pressing the first DIP switch is converted into the binary value, and the conversion result is stored in D20. The value that users enter by pressing the second DIP switch is converted into the binary value, and the conversion result is stored in D21. 2. When X1.0 is ON, Y0.0~Y0.3 are ON cyclically. After the execution of the instruction is 6-384 Instruction code Operand Function DSW S, D , D , n 1 2 DIP switch 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 -