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Programming manual M238 | 3 MB - BERGER - POSITEC

Programming manual M238 | 3 MB - BERGER - POSITEC

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Modicon <strong>M238</strong> Logic Controller<br />

<strong>M238</strong> - Controller Performance)<br />

EIO0000000384 04/2012<br />

Processing Performance<br />

Introduction<br />

Logic Processing<br />

Controller Performance<br />

D<br />

This chapter provides information about the Modicon <strong>M238</strong> Logic Controller<br />

processing performance.<br />

The following table shows logic processing performance for various logical<br />

instructions:<br />

IL Instruction Type Duration for 1000 instructions<br />

Addition/subtraction/multiplication of INT 439 μs<br />

Addition/subtraction/multiplication of DINT 506 μs<br />

Addition/subtraction/multiplication of REAL 5111 μs<br />

Addition/subtraction/multiplication of LREAL 9535 μs<br />

Division of REAL 7250 μs<br />

Division of LREAL 23045 μs<br />

Operation on BOOLEAN, e.g. Status:= Status and<br />

value<br />

971 μs<br />

LD INT + ST INT 420 μs<br />

LD DINT + ST DINT 459 μs<br />

LD REAL + ST REAL 648 μs<br />

LD LREAL + ST LREAL 1235 μs<br />

EIO0000000384 04/2012 241

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