Mitsubishi Electronics Q172HCPU, Q173HCPU 3. POSITIONING DEDICATED SIGNALS, (1), (2), Internal signals, External signals, 3 POSITIONING DEDICATED SIGNALS

3 POSITIONING DEDICATED SIGNALS

3. POSITIONING DEDICATED SIGNALS

The internal signals of the Motion CPU and the external signals to the Motion CPU are used as positioning signals.

(1)

Internal signals

The following five devices of the Motion CPU are used as the internal signals of

the Motion CPU.

• Internal relay (M) ..............................

M2000 to M3839 (1840 points)

• Special relay (SP.M)

M9073 to M9079 (7 points)

..............................• Data register (D)

D0 to D799 (800 points)

3

• Motion register (#)

#8000 to #8191 (192 points)

• Special register (SP.D)

D9112 and D9180 to D9201 (23 points)

(2)

External signals

The external input signals to the Motion CPU are shown below.

• Upper/lower limit switch input ..........

The upper/lower limit of the positioning

range is controlled.

• Stop signal .......................................

This signal makes the starting axis stop.

• Proximity dog signal ........................

ON/OFF signal from the proximity dog.

• Speed/position switching signal

......Signal for switching from speed to position.

• Manual pulse generator input ..........

Signal from the manual pulse generator.

Configuration between modules

PLC CPU

Motion CPU

1)

2)

PLC control

Device memory

Device memory

Motion control

processor

processor

Shared CPU

Shared CPU

memory

PLC bus

memory

SSCNET

Servo amplifier

Sensor, solenoid, etc. PLC intelligent function

Motion control dedicated I/F

M

M Servomotor

(DI/O)

module (A/D, D/A, etc.)

(DOG signal, manual

pulse generator)

Note) : Device memory data : 1) = 2)

Fig.3.1 Flow of the internal signals/external signals

3 - 1