mycnc:modbus_setup
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mycnc:modbus_setup [2020/01/27 11:55] – ivan | mycnc:modbus_setup [2020/02/06 13:35] – ivan | ||
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This article is designed to introduce the reader to the myCNC Modbus setup, as well as serve as the main reference point for all myCNC Modbus documentation. | This article is designed to introduce the reader to the myCNC Modbus setup, as well as serve as the main reference point for all myCNC Modbus documentation. | ||
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+ | //Note that on the ET10 control board, Port #1 (A/B) is used for all Modbus communication by default. Port #0 (A/B) is reserved for special purpose applications. Please contact the myCNC development team for implementing a special purpose application through port #0.// | ||
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+ | ====Low-level vs high-level access==== | ||
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+ | Modbus communication can either be done through high-level access (especially useful for cases where using spindle control through an inverter such as a Delta VFD, Fuling DZB, etc), or through low-level access which allows the user to program the process via a PLC procedure. | ||
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+ | High-level access is preferable for its ease of use. The settings for different inverters can be preloaded by going into Settings > Config > Technology > Mill/Lathe > Spindle, and the myCNC system will automatically attempt to send the message again should the sending fail (up to four times). For high-level access, please set the check mark to ON in the **RS485/ | ||
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+ | Low-level access is preferable for direct access to the hardware. This allows to program the communication through PLC, and is a very flexible (albeit less straightforward) method. For low-level access the check mark in the **RS485/ | ||
====I/O expand cards mapping==== | ====I/O expand cards mapping==== | ||
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The transparent mapping of Modbus inputs/ | The transparent mapping of Modbus inputs/ | ||
- | < | + | < |
- | " | + | the " |
- | Config > Technology > Mill/Lathe > Spindle configuration dialog</ | + | Config > Technology > Mill/Lathe > Spindle configuration dialog. |
+ | That checkbox is useful for high-level access only. </ | ||
{{: | {{: | ||
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===Destination port=== | ===Destination port=== | ||
- | Destination port is the port to which the inputs are sent to. There is a number of assigned " | + | Destination port is the port to which the inputs are sent to. There is a number of assigned " |
===Input/ | ===Input/ |
mycnc/modbus_setup.txt · Last modified: 2020/07/03 11:26 by ivan