AH500 Programming Manual API 1103 Symbol: S ： Initial device in which the value is shifted Word D ： Initial device in which the value is shifted Word n 1 ： Length of the data which is shifted Word n 2 ： Number of bits forming a group Word Explanation: 1. The data in the n 1 word devices starting from D is divided into groups ( n 2 words as a group), and these groups are shifted to the left. The data in the n 2 word devices starting from S are shifted to the devices starting from D to fill the vacancy. 2. Generally, the pulse instruction WSFLP is used. 3. The operand n 1 should be within the range between 1 and 512. The operand n 2 should be within the range between 1 and n 1 . Example 1: 1.
When X0.0 is switched from OFF to ON, the data in the sixteen word devices starting from D20 is divided into groups (four words as a group), and these groups are shifted to the left. 2. The shift of the data in the word devices to the left during a scan is illustrated as follows.
D35~D32 → Being carried D31~D28 → D35~D32 D27~D24 → D31~D28 D23~D20 → D27~D24 D13~D10 → D23~D20 6-242 Instruction code Operand Function WSFL P S, D, n , n 1 2 Shifting the data in the word devices to the left Device X Y M S T C HC D L SM SR E PR K 16# “$” DF S D n 1 n 2 Pulse instruction 16-bit instruction (9 steps) 32-bit instruction AH500 AH500 -