Mitsubishi Electric MELSEC FX Series - Page 540

7 Applied Instructions
7.14 Positioning Control
538
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
Cautions
1) When handling 32-bit data in structured program, you cannot designate 16-bit device directly unlike the
simple project.
When handling 32-bit data, please use the label.
However, the 32-bit counter is a 32-bit long device, and 32-bit data can be specified directly.
When specifying the device, use the global label.
2) Applicable devices are limited.
S1: Please specify Y000, Y001, Y002 of transistor output of basic unit, or Y000, Y001, Y002
*2
, Y003
*2
of
high speed output special adapter
*1
.
*1. High speed output special adapter can be connected only in FX
3U PLC.
*2. When using Y002, Y003 in high speed output special adapter, a second high speed output
special adapter is needed.
Points
• When using FX3U PLC of relay output type, high speed output special adapter is needed.
• The output of high speed output special adapter is a differential line driver.
S2: When high speed output special adapter is used at the pulse output destination in the FX
3U PLC, as
the rotating direction signal, use the output shown in the table below.
When built-in transistor output is ussed at the pulse output destination in the FX
3U and FX3UC PLCs,
as the rotating direction signal, use the transistor output.
S3: In D
.b, index (V, Z) decoration is disabled.
3) Number of output pulses after interrupt is specified (specified by ).
The setting range is as follows.
a) In the case of 16-bit operation
-32,768 to +32,767 (excluding 0)
b) In the case of 32-bit operation
-999,999 to +999,999 (excluding 0)
4) Output pulse frequency is specified (specified by ).
The setting range is as follows.
a) In the case of 16-bit operation
10 to 32,767 (Hz)
b) In the case of 32-bit operation
5) Output number of rotating direction signal
Operation changes as follows depending on polarity of output pulse frequency.
[+ (Positive)] → : ON
[- (Negative)] → : OFF
Connection position of high speed
output special adapter
Pulse output
Rotating direction
signal
First unit
=Y000 =Y004
=Y001 =Y005
Second unit
=Y002 =Y006
=Y003 =Y007
Pulse output destination Setting range
FX
3U PLC High speed output special adapter 10 to 200,000 (HZ)
FX3U, FX3UC PLCs Basic unit (transistor output) 10 to 100,000 (HZ)