7i92 and modbus
- R6MF49T2
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20 Dec 2016 13:29 #84452
by R6MF49T2
7i92 and modbus was created by R6MF49T2
Hi,
I plan to buy 7i92 to control three-axis milling machine.
My spindle can be controlled by rs485 interface (modbus).
The Mesa site have firmware with name "7i92_7i78x2D.bit". From this I conclude that 7i92 board can be connected to the board 7i78, which has rs422 (easily converted to rs485).
Can the board 7i92 control the spindle by rs485 / rs422?
I plan to buy 7i92 to control three-axis milling machine.
My spindle can be controlled by rs485 interface (modbus).
The Mesa site have firmware with name "7i92_7i78x2D.bit". From this I conclude that 7i92 board can be connected to the board 7i78, which has rs422 (easily converted to rs485).
Can the board 7i92 control the spindle by rs485 / rs422?
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- andypugh
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20 Dec 2016 13:34 #84453
by andypugh
Replied by andypugh on topic 7i92 and modbus
It would be possible in principle, but there is not an existing driver.
There are HAL components that can control RS485 spindle drives using either the serial port or a USB to serial converter.
For most spindle-based operations, as long as the spindle _feedback_ is realtime the spindle control does not have to be.
linuxcnc.org/docs/2.7/html/man/man1/gs2.1.html
linuxcnc.org/docs/2.7/html/man/man1/hy_vfd.1.html
linuxcnc.org/docs/2.7/html/man/man1/vfdb_vfd.1.html
linuxcnc.org/docs/2.7/html/man/man1/vfs11_vfd.1.html
I am using the HuanYang version on my lathe and it is working well.
There are HAL components that can control RS485 spindle drives using either the serial port or a USB to serial converter.
For most spindle-based operations, as long as the spindle _feedback_ is realtime the spindle control does not have to be.
linuxcnc.org/docs/2.7/html/man/man1/gs2.1.html
linuxcnc.org/docs/2.7/html/man/man1/hy_vfd.1.html
linuxcnc.org/docs/2.7/html/man/man1/vfdb_vfd.1.html
linuxcnc.org/docs/2.7/html/man/man1/vfs11_vfd.1.html
I am using the HuanYang version on my lathe and it is working well.
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- R6MF49T2
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20 Dec 2016 13:45 - 20 Dec 2016 13:56 #84457
by R6MF49T2
Replied by R6MF49T2 on topic 7i92 and modbus
I would like to computer was maximum far from the milling machine. In this case it would be convenient to use ethernet cable only.
Where i can I find an example of working rs422 with the board 7i92?
Where i can I find an example of working rs422 with the board 7i92?
Last edit: 20 Dec 2016 13:56 by R6MF49T2.
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