Mitsubishi Electric MELSEC iQ-F Series

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2 HIGH-SPEED COUNTER MODULE FB

2.2 M+FX5-2HC_PulseMeasure (Pulse Width Measurement)

FB details

Available device

Basic specifications

Processing

• By turning on i_bEN (Execution command), pulse measurement is performed as set in i_uInputSignal (Input signal).

• After i_bEN (Execution command) turns on, o_bOK (Normal completion) turns on when pulse width measurement of the

target channel starts.

• When o_bOK (Normal completion) is on, if the pulse width measurement value of the target channel is updated,

o_bPulseUpdate (Pulse width measurement update flag) is turned on, and the updated value is stored in o_dPulseResult

(Pulse width measurement value).

• When o_bOK (Normal completion) is on, if the period measurement value of the target channel is updated,

o_bPeriodUpdate (Period measurement value update flag) is turned on, and the updated value is stored in

o_dPeriodResult (period measurement value).

• o_bPulseUpdate (Pulse width measurement update flag) and o_bPeriodUpdate (Period measurement value update flag)

are on for only one scan.

Target module Firmware Version Engineering tool

FX5UJ CPU module 1.060 or later GX Works3 Version 1.100E or later

FX5U CPU module 1.300 or later GX Works3 Version 1.100E or later

FX5UC CPU module 1.300 or later GX Works3 Version 1.100E or later

High-speed counter module 1.000 or later GX Works3 Version 1.100E or later

Item Description

Language Ladder diagram

Number of steps 832 steps

The number of steps of the FB embedded in a program depends on the CPU module used, the input/output definitions,

and the options setting of GX Works3. For the option settings of GX Works3, refer to the following.

GX Works3 Operating Manual

The amount of label usage • Label: 340 points (Word)

• Latch label: 0 points (Word)

The amount of labels used in the program varies depending on the CPU module used, the device specified in an

argument, and the option setting of GX Works3. For the option settings of GX Works3, refer to the following.

Mitsubishi Electric MELSEC iQ-F Series - FB Details