Industrial-data-systems IDS Scale Basic Instrukcja Użytkownika Pobierz pdf (Strona 32)

Scale Basic 4.2E Reference

Sign [r] 207 [r]

Purpose: to set condition codes based on the value in register [r]. Positive is set if the register is

greater than 0, Negative is set if the register is less than 0, Zero is set if the register is zero.

Remarks:

Example: Check for scale below zero.

Sign, Gross set condition codes using the Gross weight register

If, Negative If Gross weight < 0

End Exit

End if End if

Sub [r] = [a] - [b] 201 [r] [a] [b]

Purpose: subtract register[b] from register [a], put the result into register [r].

Remarks: sets condition codes Positive, Negative, and Zero to reflect results.

Example: Sub, Memory1, Memory2, Memory3 Memory1 = Memory2 - Memory3

Suspend / Resume 249 / 250

Purpose: Suspend stops a function from executing until a Resume is executed.

Remarks: the Suspend instruction is executed in a scale basic function, the Resume instruction

is executed in an event monitor.

Example: A filling operation stops, waits 4 seconds, then stores the gross weight in Memory1.

Timer 1 is configured for 4 second time-out and execute function Resume.

Timer1: Time: 40

Function: Resume.

Fn. 1: Relay off, 1 turn off fill relay

Timer on, 1 turn on settle timer

Suspend wait for scale to settle. Timer1 executes Resume

Copy, Memory1, Gross Memory1 = Gross weight

The above example could use motion detect to wait for scale stable condition.

Set pt 1: Upper register False

Lower register Motion

Execute function Resume

Fn. 1: Relay off, 1 turn off fill relay

Set pt on, 1 turn on motion detect monitor

Suspend Setpoint monitor 1 executes Resume

Copy, Memory1, Gross Memory1 = Gross weight

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Industrial-data-systems IDS Scale Basic Instrukcja Użytkownika Strona 32