Chapter 2 Positioning Dedicated Signals - Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual

2
POSITIONING DEDICATED SIGNALS
The internal signals of the Motion CPU and the external signals to the Motion CPU are used as positioning signals.
Internal signals
The following five devices of the Motion CPU are used as the internal signals of the Motion CPU.
MELSEC iQ-R Motion device assignment and Q series Motion compatible device assignment are available. The ranges used
for devices differs depending on the device assignment method used.
Device name
Internal relay (M)
Special relay (SM)
Data register (D)
Motion register (#)
Special register (SD)
Refer to the following for details on device assignment method.
MELSEC iQ-R Motion Controller Programming Manual (Common)
External signals
The external input signals to the Motion CPU are shown below.
External input signals
Upper/lower limit switch input
Stop signal
Proximity dog signal
Speed/position switching signal
Manual pulse generator input
Forced stop signal
• Configuration between modules
PLC CPU
PLC control
processor
Input module
• Upper limit switch input
• Lower limit switch input
• Proximity dog/
Speed/Position switching signal
• Stop signal
• Forced stop signal (All axes)
*1 Motion CPU controlled module
2 POSITIONING DEDICATED SIGNALS
22
Device range
MELSEC iQ-R Motion device assignment
M16000 to M49151 (33152 points)
SM0 to SM4095 (4096 points)
D32000 to D57343 (25344 points)

SD0 to SD4095 (4096 points)
Description
The upper/lower limit of the positioning range is controlled.
This signal makes the starting axis stop.
ON/OFF signal from the proximity dog.
Signal for switching from speed to position.
Signal from the manual pulse generator.
Signal for forced stop of the servo amplifier.
Device memory
CPU buffer memory
CPU buffer memory
(fixed-cycle area)
R series PLC system bus
Intelligent function module
(high-speed counter module)
Manual pulse
generator input
Motion CPU
Device memory
Motion control
processor
CPU buffer memory
CPU buffer memory
(fixed-cycle area)
Intelligent function
*1
*1
module
Q series Motion compatible device assignment
M2000 to M3839 (1840 points)
M8192 to M12287 (4096 points)
D0 to D799 (800 points)
D10240 to D19823 (9584 points)
#8000 to #8639 (640 points)
SSCNET(/H)
Servo
amplifier
M M
• Upper limit switch input
• Lower limit switch input
• Proximity dog/
Speed/Position switching signal