11/20/2023 3:19 PM | |
Joined: 6/13/2017 Last visit: 9/12/2024 Posts: 20 Rating: (0) |
You are absolutely right, but this is our first (and hoping last) project with the canopen standard. Also I had no idea that it was so complicated, I had experience with profinet to profinet, ethernet, modbus and profibus so I tought that was easy like those or at least more intuitive to implement.. Also our local dealer for Siemens (and, as he said, even Siemens Italy) can't help me because they don't know how it works (since it is not one of their protocol.. absurd situation). Anyway to do some bench tests I found this from HMS (it is already one of our suppliers) and another one from amazon Italy. https://www.amazon.it/s?k=usb+can+open&__mk_it_IT=%C3%85M%C3%85%C5%BD%C3%95%C3%91&ref=nb_sb_noss Price a part, do you think that even the cheapest amazon can work for me? Euromap requires can 2.0A About your last point (update), it was an option I had already consider, I have an inverter from Nidec and some ESP32 that can work with canopen. Last thing, which software do you use to configure this devices? something proprietary or there are some opensource alternatives? |
11/20/2023 4:59 PM | |
Joined: 4/28/2015 Last visit: 2/7/2024 Posts: 10533 Rating: (820)
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Hello,
IXXAT's V2 adapter is that my mentioned from my this description but I don't have it: HMS have typical USB-CAN adapter (v2 as expected generally with their SW and products) they supported all about that products generally but you need be careful here. As I said, it is also depended to SW used for configuration and diagnostic of network. HMS/ANYBUS/IXXAT use for their products specific SW for cfg and diagnostic and here you can't use other cheap USB-CAN adapter logically know how is secured. Also is generally ok to configure any CANopen devices with their SW and that USB CAN adapter because here is standard with EDS files import to library so it is genraly ok. Their SW is quite good, I'm use it because I have ET200S 1SI CANopen module and X-Gateway Pn?CANopen. On other side, CANopen devices and network can be configured via any SW that support specific protocol (CANopen here), also manually is possible. Here is also one negative thing, imagine you have to configure some device with cfg about 80 lines of CANopen SDOs commands All is about support of specific adapter with specific SW (as I've described before). Forget that cheap CAN adapters, tehy can be maybe used for diagnostic but with what SW? here you need be careful because speed plays here important role, on CANopen std you can work on 1000KBit so if that cheap adapters will work is questionable, also if reliably. Again pls, I think that my mentioned companies are ok with their portfolio, it is only required to call them. If you're not part of any company it can be hard to pay that big money for products but this isn't nothing strange. Simply, all serious companies offer to their HW products also SW for cfg and diagnostic. For your last question, pls look again carefully to my posts where is clear that also specific SW is offered to HW products from that Companies (HMS, ESD,...). i think that IXXAT V2 compact is like standard in this field but all depends also what exactly products you have. I think (hope I'm not wrong so check better IXXAT products) that if you have device with J1939 protocol, I think that V2 compact can't be used here only their Automotive RJ45 adapter so as I said, you need select products very carefully and with possible future expectations. You are absolutely right, but this is our first (and hoping last) project with the canopen standard. Also I had no idea that it was so complicated, I had experience with profinet to profinet, ethernet, modbus and profibus so I tought that was easy like those or at least more intuitive to implement. Look, I can't imagine this protocol generaly to be not complicated in case of its very big reliability and functionality as is in automotive area. Speed and safety first and good diagnostic. Really you must accept that with so many possibilities with cfg, functionality and diagnostic. No one will ask you if you like or don't like this system. it is builded for specific areas of controls and does its job perfectly without any doubts. It is simply one good one compared to typical Profibus, Profinet and Modbus what are very good and also mostly used but we can say for sure that not aplicable in some environment with specific needs. On other side I like this base CAN with that more overlay-ed protocols due really fantastic idea of functionality and diagnostic, reliability.
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Last edited by: Duris_I at: 11/20/2023 17:03:23Last edited by: Duris_I at: 11/20/2023 17:11:42Last edited by: Duris_I at: 11/20/2023 17:14:06Last edited by: Duris_I at: 11/20/2023 17:52:14Last edited by: Duris_I at: 11/20/2023 17:53:12With best regards... |
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