176
Notes:
Description
• Multiplies the 32-bit data or 32-bit equivalent constant specified by S1 and the one specified by
S2 when the trigger turns ON.
The multiplied result is stored in D+3, D+2, D+1, and D (64-bit area).
■ Flag condition
• Error flag (R9007): Turns ON and keeps the ON state when the area specified using the index
modifier exceeds the limit. The error address is transferred to DT9017
and held. (See notes below.)
• Error flag (R9008): Turns ON for an instant when the area specified using the index modifier
exceeds the limit. The error address is transferred to DT9018. (See notes
below.)
• = flag (R900B): Turns ON for an instant when the calculated result is recognized as “0”.
Notes:
• Special data registers DT9017 and DT9018 are available only for FP1s with CPU
version 2.7 or later. (All FP1s with a suffix “B” on the part number have this function.)
• When using special internal relays R9008, and R900B as the flags for this
instruction, be sure to program the flags at the address immediately after the
instruction.
• Refer to page 223, “8-3. Table of Special Internal Relays”, for details about error
flags and = flag.
Multiplicand data Multiplier data Trigger turns ON Result (64-bit)
S1 : lower 16-bit S2 : lower 16-bit D
S1+1 : higher 16-bit
×
S2+1 : higher 16-bit D+1
D+2
D+3
• When processing 32-bit data, the higher 16-bit areas (S1+1, S2+1) are automatically decided if the lower
16-bit areas (S1, S2) are specified.
e.g., S1+1 (higher) = DT1, S1 (lower) = DT0
S2+1 (higher) = DT101, S2 (lower) = DT100
• The multiplied result is stored in the 64-bit area.
The areas (D+3, D+2, D+1) other than the lowest 16-bit area (D) are automatically decided when the
lowest 16-bit area is specified.
e.g., D = DT200
D+1 = DT201
D+2 = DT202
D+3 = DT203
6-3. Description of High-level Instructions
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