Filter
Top Products
2 Instructions
2-42
CP1E CPU Unit Instructions Reference Manual(W483)
Operation of Differentiated Instructions
If there is a differentiated instruction (DIFU, DIFD, or instruction prefixed by @ or %) between IL(002)
and ILC(003) instructions, that instruction will be executed when the interlock is cleared if the differenti-
ation condition of the instruction is satisfied by means of a change in the input condition between start-
ing and clearing of the interlock.
Example:
When a DIFFERENTIATE UP (DIFU(013)) instruction is used and the input condition is OFF when the
interlock starts and ON when the interlock is cleared, the DIFFERENTIATE UP (DIFU(013)) instruction
will be executed when the interlock is cleared.
i
Reference:
An IL(002) instruction operates in the same way as an MILH(517) instruction in relation to differentiated
instruction operation.
Timing Chart
IL
ILC
DIFU
10.00
1. When 0.00 is OFF (interlock starts), input condition 0.01 of DIFU is OFF.
2. Input condition 0.01 of DIFU goes from OFF to ON while 0.00 is OFF (interlock in effect),
3. When 0.00 goes from OFF to ON (interlock cleared), the DIFU instruction is executed if input condition 0.01 of DIFU is ON.
0.00
0.01
1 cycle
The DIFU(013) instruction is executed.
Not interlocked Interlocked
ON
0.00
0.01
10.00
OFF
OFF
ON
ON Differentiation condition is satisfied
OFF
ON
OFF
Not interlocked