AH500 Programming Manual 2. The operation equation: D0=(500Ч168)ч1,000+(-4)=80 Destination value D Slope=168 Offset=-4 Source value S 1 0 =500 Example 2: 1. Suppose the values in S 1 , S 2 , and S 3 are 500, -168, and 534 respectively. When X0.0 is ON, the instruction SCAL is executed, and the scale value is stored in D10. 2. The operation equation: D10=(500Ч-168)ч1,000+534=450 Additional remark: 1. Only when the slope and the offset are known can the instruction SCAL be used. If the slope and the offset are unknown, users are suggested to use the instruction SCLP to perform the 6-100