Fb Details - Mitsubishi Electric MELSEC iQ-F Series Manual

FB details

Available device
Target module
FX5UJ CPU module
FX5U CPU module
FX5UC CPU module
High-speed counter module
Basic specifications
Item
Language
Number of steps
The amount of label usage
The number of index register
usage
The amount of file register usage
FB dependence
FB compilation method
FB operation
Processing
• By turning on i_bEN (Execution command), the rotation speed calculated based on the values of CH1 measurement unit
time (Un\G228 to Un\G229)/CH2 measurement unit time (Un\G428 to Un\G429), CH1 number of pulses per rotation
(Un\G230 to Un\G231)/CH2 number of pulses per rotation (Un\G430 to Un\G431) is read from the buffer memory.
• After i_bEN (Execution command) turns on, o_bOK (Normal completion) turns on when rotation speed measurement of the
target channel starts.
• When o_bOK (Normal completion) is on, if the rotation speed of the target channel is updated, o_bUpdate (Rotation speed
measurement value update flag) is turned on, and the updated value is stored in o_dRotationVal (Rotation speed
measurement value).
• o_bUpdate (Rotation speed measurement value update flag) is on for only one scan.
2 HIGH-SPEED COUNTER MODULE FB
24
2.4 M+FX5-2HC_RotationSpeedMeasure (Rotation Speed Measurement)
Firmware Version
1.060 or later
1.300 or later
1.300 or later
1.000 or later
Description
Ladder diagram
570 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
• Label: 336 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.
GX Works3 Operating Manual
• Index register: 0 points
• Long index register: 0 points
File register: 0 points (Word)
No dependence
Macro type
Always executed
Engineering tool
GX Works3 Version 1.100E or later
GX Works3 Version 1.100E or later
GX Works3 Version 1.100E or later
GX Works3 Version 1.100E or later