Modbus – IAI America ROBO Cylinder Series User Manual

Page 251

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6. Modbus

ASCII

243

Modbus

(4) Sample query

A sample query that turns the servo of a controller of axis No. 0 on is shown below.

Query: 01 05 04 03 FF 00 F4

Field

ASCII mode 8-bit data

Converted ASCII

code data [H]

Start

‘:’

3A

Slave address [H]

‘0’, ‘1’

3031

Function code [H]

‘0’, ‘5’

3035

Start address [H]

‘0’, ‘4’, ‘0’, ‘3’

30343033

Changed data [H]

‘F’, ‘F’, ‘0’, ‘0’

46463030

Error check [H]

‘F’, ‘4’ (In accordance with LRC calculation) 4634

End

‘CR’, ‘LF’

0D0A

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

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