Industrial Data Systems IDS Scale Basic - Manual (Page 33)

Scale Basic 4.2E Reference
Timer off / Timer on (n) 225 [n] / 224 [n]
Purpose: to activate / de-activate a timer.
Remarks: the active timers are scanned by the event monitor. When an active timer counts
down to 0 (times out) it activates a scale basic function and de-activates itself. Timer off 0
turns off all timers. NOTE: timer 5 is a special timer. It is an ‘auto-reload’ timer. When it
times out, it automatically restarts itself, and then executes a scale basic function. The Timer
off instruction must be executed to turn off timer 5.
Example: keyboard key F1 activates function 1. Function 1 starts a relay output cycle where
relay 1 turns on in 5 second intervals. Relay 1 turns off based on the number of tenths of
seconds entered into Memory1.
Timer1: Time: 1 time interval = 0.1 seconds
Function User3 execute function 3: turn off relay 1
Timer2: Time: 20 time interval = 2.0 seconds
Function: Resume execute Resume (used for Prompt pause)
.
Timer5: Time: 50 time interval = 5.0 seconds
Function: User2 turn on relay1, turn on timer 1
Fn. 1: All off Begin with all setpoints, timers, and relays off.
Prompt “ONTIME” prompt for on time data entry.
Timer On, 2 turn on prompt pause timer
Suspend suspend for 2 seconds
Dp adjust, Memory1, 1 set memory1 for 1 decimal position
Get data, Memory1 get ON time
If not Clear key if NOT Clear key
Timer on 5 turn on timer 5 (auto-reload timer)
Goto User2 GOTO user function 2
End if end if
End End of function
Fn. 2: Relay on, 1 Turn on relay 1
Timer on, 1 Turn on timer 1
Copy Memory2, Memory1 copy ON time to Memory2
End End of function: note timer 5 restarts itself.
Fn. 3: Dec Memory2 subtract 1 from ON time interval
If Positive If ON time > 0
Timer on, 1 re-activate timer 1
Else Else
Relay off, 1 Turn off relay 1
End if End if
End End of function