Using drive with PLC - Revision history

Tero K at 16:30, 14 December 2017

2017-12-14T16:30:43Z

Tero K at 16:28, 14 December 2017

2017-12-14T16:28:52Z

Tero K: Created page with "Typical step & direction connection scheme with PLC Granite Devices drives are compatible with virtually all PLC syste..."

2017-12-14T16:25:52Z

Created page with "Typical step & direction connection scheme with PLC Granite Devices drives are compatible with virtually all PLC syste..."

New page

[[File:Drive plc connection step dir.svg|thumbnail|Typical step & direction connection scheme with PLC]]
Granite Devices drives are compatible with virtually all [[PLC]] systems through several connection methods.
==Connection types==
===Pulse & direction with motion control PLC===
In pulse & direction mode, PLC sends stream of pulses with direction signal to modify motor position incrementally. This is the de-facto standard for driving stepping motors. However with Granite Devices drives, any motor type can be operated with step & direction interface.

*Choose PLC with pulse & direction (a.k.a. step & direction or stepper interface). Output level 5V single ended or RS422.
*Use PLC's general purpose inputs & outputs (GPIO) to control and read status signals of drive, such as:
**Drive enable (output)
**Fault clear (output)
**Drive fault status (input)
*PLC should have motion control functionality inside for trajectory generation
===Pulse & direction without motion control PLC===
This is similar to traditional step & direction, but can be implemented 100% by PLC software and with just 5V GPIO terminals.

Controlling position smoothly over software generated step pulses is possible thanks to [[pulse burst positioning|pulse burst positioning (read this page for usage)]] support in Granite Devices drives.

PLC requirements then are:
*5 Volt GPIO lines. Typically used:
**drive enable (output)
**fault clear (output)
**drive fault status (input)
**step (output)
**direction (output)
===SimpleMotion===
If PLC has programmable RS485 serial interface, with 460800 PBS baudrate support, it is possible to convert SimpleMotion library to PLC and control drives with reduced amount of wires and with increased set of functionality.

Drawback of this method is the extra work of porting SimpleMotion C library to PLC. If you implement SimpleMotion for PLC, and wish get good karma by contributing your work to the community, please [[Granite Devices support|contact us]].

[[Category:Application]]
[[Category:Argon_user_guide]]
[[Category:Argon_wiring]]
[[Category:IONI_user_guide]]

@@ Line 5: / Line 5: @@
 In pulse & direction mode, PLC sends stream of pulses with direction signal to modify motor position incrementally. This is the de-facto standard for driving stepping motors. However with Granite Devices drives, any motor type can be operated with step & direction interface.
-*Choose PLC with pulse & direction (a.k.a. step & direction or stepper interface). Output level 5V single ended or RS422. As an example, see [https://www.beckhoff.com/english.asp?ethercat/el2522.htm EL2522] from Beckhoff that is compatible interface device.
+*Choose PLC with pulse & direction (a.k.a. step & direction or stepper interface). Output level 5V single ended or RS422. As an example, see [https://www.beckhoff.com/english.asp?ethercat/el2522.htm EL2521] from Beckhoff that is compatible interface device.
 *Use PLC's general purpose inputs & outputs (GPIO) to control and read status signals of drive, such as:
 **Drive enable (output)
@@ Line 24: / Line 24: @@
 **direction  (output)
 ===SimpleMotion===
-If PLC has programmable RS485 serial interface, with 460800 PBS baudrate support, it is possible to convert SimpleMotion library to PLC and control drives with reduced amount of wires and with increased set of functionality.
+If PLC has programmable RS485 serial interface with 460800 PBS baudrate support, it is possible to convert SimpleMotion library to PLC and control drives with reduced amount of wires and with increased set of functionality.
-Drawback of this method is the extra work of porting SimpleMotion C library to PLC.  If you implement SimpleMotion for PLC, and wish get good karma by contributing your work to the community, please [[Granite Devices support|contact us]].
+Drawback of this method is the extra work of porting SimpleMotion C library to PLC. If you implement SimpleMotion for PLC, and wish get good karma by contributing your work to the community, please [[Granite Devices support|contact us]].
 [[Category:Application]]