Maple Systems MAPware-7000 - Manual (Page 19)

11 MAPware-7000 Ladder Logic Guide
1010-1041 rev. 00
Instruction Name Symbol Description Execution
Time (μSec)
Disable Interrupt Prevents execution of interrupt
programs.
Watchdog Timer
Reset The built-in watchdog timer resets the
HMC7000 if timeout exceeds 200 msec.
This instruction extends that time by up
to an additional 100 msec. 1.0 μsec
Step Sequence
initialize This function initializes a step sequencer.
It clears n bit registers starting with
Operand A, then sets Operand A. 3.5 μsec to
86.8 μsec
Step Sequence input If input to this function is ON and
Operand A is ON, then turns the output
ON. 1.2 μsec
Step Sequence output When input is ON, this functions resets all
bit registers of the step sequencer, then
sets Operand A. 1.9 μsec
Functions Instructions
These are instructions which perform complex functions.
Instruction Name Symbol Description Execution
Time (μSec)
Moving Average Calculates the average value of last n
scan values of A, and stores the result in
C. 5.7 to 45.5
μsec
Digital Filter Filters the value of A by filter constant
specified by B, and stores the result in C. 28.4 μsec
PID 1,4 Performs PID control (pre-derivative real
PID algorithm):
Process value (PV): A
Set value (SV): A+1
PID parameters: B
Manipulation value (MV): C
35.9-44.7 μsec