Double Compare - Cmpl(60) - Omron CQM1H - PROGRAM Programming Manual

Programmable controllers; inner boards

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Comparison Instructions

Compare data in IR 001

(which contains 0210) with

the given ranges.

5-19-4 DOUBLE COMPARE – CMPL(60)

The following example shows the comparisons made and the results provided

for BCMP(68). Here, the comparison is made during each cycle when IR

00000 is ON.

Lower limits

Ladder Symbols

Cp1 and Cp1+1 must be in the same data area.

Cp2 and Cp2+1 must be in the same data area.

Set the third operand to 000.

When the execution condition is OFF, CMPL(60) is not executed. When the

execution condition is ON, CMPL(60) joins the 4-digit hexadecimal content of

Cp1+1 with that of Cp1, and that of Cp2+1 with that of Cp2 to create two 8-

digit hexadecimal numbers, Cp+1,Cp1 and Cp2+1,Cp2. The two 8-digit num-

bers are then compared and the result is output to the GR, EQ, and LE flags

in the SR area.

Placing other instructions between CMPL(60) and the operation which

accesses the EQ, LE, and GR flags may change the status of these flags. Be

sure to access them before the desired status is changed.

Address Instruction

Upper limits

Operand Data Areas

Cp1: First word of first compare word pair

IR, SR, AR, DM, EM, HR, TIM/CNT, LR

Cp2: First word of second compare word pair

IR, SR, AR, DM, EM, HR, TIM/CNT, LR

Section 5-19

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