SCATECH EV1616DN - Example config
- jimwhiting
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23 Aug 2024 15:12 #308469
by jimwhiting
SCATECH EV1616DN - Example config was created by jimwhiting
Hopefully this will assist someone.
I have tested the SCATECH 16 in 16 out EtherCAT board. Below is my config.
I have tested the SCATECH 16 in 16 out EtherCAT board. Below is my config.
<slave idx="3" type="generic" vid="00000d37" pid="000f0001" configPdos="false" name="EV1616DN-V2.2">
<dcConf assignActivate="300" sync0Cycle="*1" sync0Shift="0"/>
<syncManager idx="2" dir="out">
<pdo idx="1601">
<pdoEntry idx="7010" subIdx="01" bitLen="1" halPin="out1" halType="bit"/>
<pdoEntry idx="7010" subIdx="02" bitLen="1" halPin="out2" halType="bit"/>
<pdoEntry idx="7010" subIdx="03" bitLen="1" halPin="out3" halType="bit"/>
<pdoEntry idx="7010" subIdx="04" bitLen="1" halPin="out4" halType="bit"/>
<pdoEntry idx="7010" subIdx="05" bitLen="1" halPin="out5" halType="bit"/>
<pdoEntry idx="7010" subIdx="06" bitLen="1" halPin="out6" halType="bit"/>
<pdoEntry idx="7010" subIdx="07" bitLen="1" halPin="out7" halType="bit"/>
<pdoEntry idx="7010" subIdx="08" bitLen="1" halPin="out8" halType="bit"/>
<pdoEntry idx="7010" subIdx="09" bitLen="1" halPin="out9" halType="bit"/>
<pdoEntry idx="7010" subIdx="0a" bitLen="1" halPin="out10" halType="bit"/>
<pdoEntry idx="7010" subIdx="0b" bitLen="1" halPin="out11" halType="bit"/>
<pdoEntry idx="7010" subIdx="0c" bitLen="1" halPin="out12" halType="bit"/>
<pdoEntry idx="7010" subIdx="0d" bitLen="1" halPin="out13" halType="bit"/>
<pdoEntry idx="7010" subIdx="0e" bitLen="1" halPin="out14" halType="bit"/>
<pdoEntry idx="7010" subIdx="0f" bitLen="1" halPin="out15" halType="bit"/>
<pdoEntry idx="7010" subIdx="10" bitLen="1" halPin="out16" halType="bit"/>
</pdo>
</syncManager>
<syncManager idx="3" dir="in">
<pdo idx="1a00">
<pdoEntry idx="6000" subIdx="01" bitLen="1" halPin="e-stop" halType="bit"/>
<pdoEntry idx="6000" subIdx="02" bitLen="1" halPin="carousel-unlocked" halType="bit"/>
<pdoEntry idx="6000" subIdx="03" bitLen="1" halPin="carousel-locked" halType="bit"/>
<pdoEntry idx="6000" subIdx="04" bitLen="1" halPin="input4" halType="bit"/>
<pdoEntry idx="6000" subIdx="05" bitLen="1" halPin="input5" halType="bit"/>
<pdoEntry idx="6000" subIdx="06" bitLen="1" halPin="input6" halType="bit"/>
<pdoEntry idx="6000" subIdx="07" bitLen="1" halPin="input7" halType="bit"/>
<pdoEntry idx="6000" subIdx="08" bitLen="1" halPin="input8" halType="bit"/>
<pdoEntry idx="6000" subIdx="09" bitLen="1" halPin="input9" halType="bit"/>
<pdoEntry idx="6000" subIdx="10" bitLen="1" halPin="input10" halType="bit"/>
<pdoEntry idx="6000" subIdx="11" bitLen="1" halPin="input11" halType="bit"/>
<pdoEntry idx="6000" subIdx="12" bitLen="1" halPin="input12" halType="bit"/>
<pdoEntry idx="6000" subIdx="13" bitLen="1" halPin="input13" halType="bit"/>
<pdoEntry idx="6000" subIdx="14" bitLen="1" halPin="input14" halType="bit"/>
<pdoEntry idx="6000" subIdx="15" bitLen="1" halPin="input15" halType="bit"/>
<pdoEntry idx="6000" subIdx="16" bitLen="1" halPin="input16" halType="bit"/>
</pdo>
</syncManager>
</slave>
The following user(s) said Thank You: tommylight, rodw
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- darrylb123
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14 Mar 2025 05:48 #323887
by darrylb123
Replied by darrylb123 on topic SCATECH EV1616DN - Example config
I just got a SCATECH EV1616DN module with the view of using it instead of parports. I have the hal operating the module.
I used github.com/pklopping/linuxcnc-ethercat-b...asic_digital_outputs for reference.
I'm lost as to how to integrate this back into a linuxcnc hal file generated by stepconf.
I assumed that I could simply change the parport references to lcec but, for example' there are no -reset pins etc.
Can you point me at an example of a compete configuration using ethercat?
I used github.com/pklopping/linuxcnc-ethercat-b...asic_digital_outputs for reference.
I'm lost as to how to integrate this back into a linuxcnc hal file generated by stepconf.
I assumed that I could simply change the parport references to lcec but, for example' there are no -reset pins etc.
Can you point me at an example of a compete configuration using ethercat?
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- unknown
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14 Mar 2025 06:52 #323889
by unknown
Replied by unknown on topic SCATECH EV1616DN - Example config
The hal_parport driver creates the pins & such and also talks directly to the parallel port hardware. I'm not sure if want you do is possible. I would imagine it would require a very special real time driver. I would also guess you wouldn't get any extra performance over using a parallel port as the step & direction timings would be created by the Linuxcnc software.
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- rodw
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14 Mar 2025 07:08 #323892
by rodw
Replied by rodw on topic SCATECH EV1616DN - Example config
you need to write your hal by hand. check the stiickies and start with an example config.
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- darrylb123
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14 Mar 2025 09:41 #323899
by darrylb123
Replied by darrylb123 on topic SCATECH EV1616DN - Example config
stiickies?
I have a working config using 2 parallel ports. Can I start with that?
I am using closed loop steppers.
I undestand that I will have to add invert pins etc.
The reset pin has me confused. Is it to generate a particular pulse width?
I have a working config using 2 parallel ports. Can I start with that?
I am using closed loop steppers.
I undestand that I will have to add invert pins etc.
The reset pin has me confused. Is it to generate a particular pulse width?
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14 Mar 2025 09:45 #323900
by darrylb123
Replied by darrylb123 on topic SCATECH EV1616DN - Example config
I'm not chasing better performance. I'm chasing a configuration that will work with modern hardware (no slots or parallel ports). I thought ethercat might be a means of getting there. I saw the above post and assumed that this hardware would do what I wanted.
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14 Mar 2025 11:51 #323915
by unknown
Replied by unknown on topic SCATECH EV1616DN - Example config
You're just making life hard for yourself if you want a reliable solution. But if you want to go down that path good luck.
Firstly I read this:
linuxcnc.org/docs/html/man/man9/hal_parport.9.html
Then read:
github.com/LinuxCNC/linuxcnc/blob/master...rivers/hal_parport.c
That should give you an insight into the hal parallel port driver works.
Now the task would be writing a realtime driver that mimics the functions of the haL-parport driver and talks to the the ethercat hardware. Once again the limiting factor will be the latency as this will affect the base thread period and the step speed.
Personally I think a Mesa card, 7i92 would be a simple upgrade to a 2 port parallel port system, is the way to go. This is the most mature & supported option.
There are also 2 really well supported & mature projects, Remora & Linuxcnc-RIO that can be used instead of want you want to do.
BTW I have created a couple of boards to use with an FPGA that can be used with Linuxcnc-RIO that will give you about 3x17 pin ports that can be used with a chinese breakout board, 1x12 pin port a 1x6 pin port and a 1x3 pin port.
This can also run modified Mesa 7c81 firmware to either connect to an RPi4/5 or (probably not of interest to you) to a PC via EPP interface.
I'm also toying with the idea of an Ethernet interface as well, but this is just in the "what if" stages.
Firstly I read this:
linuxcnc.org/docs/html/man/man9/hal_parport.9.html
Then read:
github.com/LinuxCNC/linuxcnc/blob/master...rivers/hal_parport.c
That should give you an insight into the hal parallel port driver works.
Now the task would be writing a realtime driver that mimics the functions of the haL-parport driver and talks to the the ethercat hardware. Once again the limiting factor will be the latency as this will affect the base thread period and the step speed.
Personally I think a Mesa card, 7i92 would be a simple upgrade to a 2 port parallel port system, is the way to go. This is the most mature & supported option.
There are also 2 really well supported & mature projects, Remora & Linuxcnc-RIO that can be used instead of want you want to do.
BTW I have created a couple of boards to use with an FPGA that can be used with Linuxcnc-RIO that will give you about 3x17 pin ports that can be used with a chinese breakout board, 1x12 pin port a 1x6 pin port and a 1x3 pin port.
This can also run modified Mesa 7c81 firmware to either connect to an RPi4/5 or (probably not of interest to you) to a PC via EPP interface.
I'm also toying with the idea of an Ethernet interface as well, but this is just in the "what if" stages.
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