Modbus – IAI America ROBO Cylinder Series User Manual

Page 256

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6. Modbus

ASCII

248

Modbus

6.5.6 Pause <<STP>>

(1) Function

If the pause command is transmitted during movement, the actuator decelerates and stops. If the

status is set back to normal again, the actuator resumes moving for the remaining distance.

As long as the pause command is being transmitted, all motor movement is inhibited.

If the alarm reset command bit is set while the actuator is paused, the remaining travel will be

cancelled.

If this bit is set during home return, the movement command will be held if the actuator has not yet

reversed after contacting the mechanical end. If the actuator has already reversed after contacting

the mechanical end, home return will be repeated from the beginning.

(2) Query format

Field

Number of

characters

ASCII mode

character string

(fixed)

Remarks

Header

1

‘:’

Slave address [H]

2

Arbitrary

Axis number + 1 (01

H

to 10

H

)

Function code [H]

2

‘0’, ‘5’

Write to a single coil DO.

Start address [H]

4

‘0’, ‘4’ ‘0’, ‘A’

Pause command

Changed data [H]

4

Arbitrary

Pause command: ‘F’, ‘F’, ‘0’, ‘0’

Normal: ‘0’, ‘0’, ‘0’, ‘0’

Error check [H]

2

LRC calculation

result

Trailer

2

‘CR’, ‘LF’

Total number of bytes

17

(3) Response

If the change is successful, the response message will be the same as the query.

If invalid data is sent, an exception response (refer to section 7) will be returned, or no response will

be returned.

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