Mitsubishi Electric MELSEC iQ-F Series Reference Manual page 24

■External public label
No. Name
(10) Rotation speed
■Global label (using latch label)
Refer to Page 26 Global Labels.
Function overview
Item
Applicable hardware and
software
Programming language
Number of basic steps
Used label amount
Function description
FB compiling method
FB operation type
Application example
3 SPECIFICATION
22
3.1 Details of the FB Library
Variable name Data type
pbo_uRevolvingSpeed Word [Unsigned]/
Bit string [16-bit]
Description
Target CPU
Applicable engineering tool
Ladder
1,555 step
The number of FB steps integrated in the program varies depending on the CPU module used, the input/output definition, and the
setting options of GX Works3. For the option settings of GX Works3, refer to the GX Works3 Operating Manual.
■Label
2.34 K point [WORD]
■Latch label
0 K point [WORD]
The used label amount integrated in the program varies depending on the device specified as a parameter and the option settings
of GX Works3. For the option settings of GX Works3, refer to the GX Works3 Operating Manual.
(1) By turning on i_bEN (Execution command), o_bOK (Normal completion) is turned on when the specified input label is in the
setting range.
(2) When i_bEN (Execution command) is turned off, o_b48CamOutput (Cam output) is all off and the FB stops.
(3) The cam output data at the position of i_dCounterValue (Current value) is output to the specified o_b48CamOutput (Cam
output) as follows.
• Only the number that is set to ON in i_b48CamOutputNo (Cam output number) is the cam output control target. (When this label
is off, the cam output is always off.)
*1
• The speed is calculated from the difference between the previous current value and present current value. The cam output
data after ON angle advance amount / OFF angle advance amount that is set in st4AngleAdvFunc (Angle advance function
setting) from i_dCounterValue (Current value) is output to o_b48CamOutput (Cam output).
o_b48CamOutput (Cam output) of each i_uCh (Channel number) is independent.
(4) The calculated speed is stored in pbo_uRevolvingSpeed (Rotation speed).
(5) When the setting value of i_uCh (Channel number) is out of range, o_bErr (Error completion) turns on, the error code 100
(hexadecimal) is stored in o_uErrId (Error code), and FB processing stops.
For details of the error code, refer to Page 25 Error code.
(6) When the input value of i_uCounterValue (Current value) is out of range, o_bErr (Error completion) turns on, the error code 101
(hexadecimal) is stored in o_uErrId (Error code), and FB processing stops.
For details of the error code, refer to Page 25 Error code.
Macro type
Real-time execution
Refer to Page 33 Program Example.
Default value Description
0 Stores the calculation result of rotation speed.
(Unit: rpm)
FX5U CPU, FX5UC CPU
GX Works3 Version 1.050C or later