Industrial Data Systems IDS Scale Basic - Manual (Page 23)

Scale Basic 4.2E Reference
Remarks: sets condition codes Positive, Negative, and Zero to reflect results. The decimal
position of the result before the divide determines the decimal position of the result after the
divide. Divide by 0 sets the result to 0. NOTE: it is preferable to do a multiply instead of a
divide (see Mul example).
Example: convert net weight pounds to tons. Register Fixed43 is set to 2000.
Dp adjust, Memory1, 2 Set memory1 decimal position = 0.00
Div, Memory1, Net, Fixed43 Memory1 = Net / Fixed43
Dp adjust [r] 212 [r]
Purpose: set the decimal position of a register.
Remarks: if the new decimal position is less than the previous decimal position, the result is
rounded up by adding 5 to the most significant digit being dropped. Do not use a decimal
position greater than 9.
Example:
Memory1 contains 0.425
Dp adjust, Memory1, 2 Set memory decimal position to 2 (0.00)
The result = (0.425 + 0.005) / 10 = 0.43
Else (see if instruction) 251
End if (see If instruction) 240
End 255
Purpose: to end a function.
Remarks: every function should have an End statement
Example:
Relay off, 1 Turn off relay 1
End End of function.
Erase id [r] 236 [r]
Purpose: erase an Id in memory. Use the Id number in the register to find the Id and erase it.
Remarks: condition code Positive is set true if the Id is found, condition code Zero is set true if
the Id is not found.
Example: Get an Id number from the keyboard, then erase the ID from memory.
Prompt, “ID” Prompt the user to enter an Id number
Get data, Memory1 Get an Id number. Put it into Memory1
Erase id, Memory1 Find the Id record pointed to by Memory1. Erase it.
Error msg (error no.) 239 [nnn]
Purpose: to display user definable error messages on the display in the form “Err xxx” where
xxx is a number between 1 and 255.