Mitsubishi Electric MELSEC iQ-R16MTCPU - Page 94

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4 AUXILIARY AND APPLIED FUNCTIONS
4.1 Limit Switch Output Function
Watch data
This data is used to perform the limit switch output function. This data is comparison data to output the ON/OFF signal. The
output device is ON/OFF-controlled according to the ON section setting.
As the watch data, motion control data, word device data or word device data (ring counter) can be used.
■Motion control data
Settable watch data is shown in the following table.
■Word device data/word device data (ring counter)
•Device
Word devices are used for watch data. Refer to device list for the range of word devices that can be set. (Page 75
Device List)
• Data type
The following data type is set as the data type to be compared.
• Ring counter value
When the watch data is the word device data (ring counter), the ring counter value is set.
Item Unit Data type Axis No. setting range Remarks
R64MTCPU R32MTCPU R16MTCPU
Feed current value Control unit 32-bit integer type 1 to 64 1 to 32 1 to 16 
Real current value
Servo command value pulse
Position feed back
Absolute position encoder single revolution
position
Absolute position encoder multiple revolution
position
 16-bit integer type
Deviation counter value pulse 32-bit integer type
Servo command speed pulse/s
Motor speed 0.01r/min
Motor current value 0.1% 16-bit integer type
Command generation axis feed current value Control unit 32-bit integer type
Command generation axis cumulative current
value
Command generation axis current value per cycle
Synchronous encoder axis current value Encoder axis
unit
1 to 12
Synchronous encoder axis current value per cycle
Cam axis current value per cycle Cam axis
cycle unit
1 to 64 1 to 32 1 to 16 Valid in
synchronous
control
Cam axis current value per cycle (Actual)
Data type Remarks
16-bit integer type 
32-bit integer type Set the device No. as an even No.
Data type Remarks
16-bit integer type H0001 to H7FFF
32-bit integer type K1 to K2147483647, H00000001 to H7FFFFFFF
Upper limit setting
Lower limit setting
Without output device
compensation time
ON section
setting
OFF
ON
OFF
Ring counter value
0