Hello everyone, I have a FX2N PLC and I am in need of a programming cable, specifically the SC-09 model. Unfortunately, acquiring this cable is proving to be a challenge. I require the cable for transferring ladder logic from my PC to the PLC. I am exploring three potential solutions: 1. Creating a programming cable using online tutorials and resources. However, I am aware that the PLC port is RS422 while the PC port is RS232. How can I make this work? 2. Utilizing a RS485 to USB converter. Is this a feasible option and if so, how should the wiring be configured considering the PLC port is RS422? What about issues with full or half duplex communication? 3. Exploring the possibility of using a RS422 to RS232 converter. Are there any drawbacks or advantages to this approach? Please provide insights on the advantages and disadvantages of each of these options.
The SC-09 is a popular RS422 to RS232 converter that consists of two cables: an 8-pin mini-DIN to 25-pin D-sub RS422 cable, and a 24-pin to 9-pin D-sub on the RS422 to RS232 converter. This cable is commonly used and can be easily obtained or assembled from various sources.
Find SC09 cables on eBay that are compatible with devices using either the mini 8 pin or an adapter from 25 pin to 8 pin mini. While some have seen a resistor bodge online, I have not tried it myself. Ensure you have the necessary driver (com port) for USB clone cables - it may require a USB driver or a virtual com port. If you obtain the SC09 cable but lack a 232 com port, use a USB to 232 converter. For Windows 10/11 users, ensure your USB/232 driver has the latest chipset like the PL2303. Consider purchasing a UGREEN converter from Amazon for a reliable connection.
Looking to ship globally? Discover our top-of-the-line Mitsubishi PLC Cable USB SC09-FX MELSEC SC-09 USB-FXPLC Cables, PLC Trainers, and Industrial Automation Supplies at www.plccable.com. Additionally, we offer an RS422 option for your convenience.
Hi there, All three of your potential solutions could work, but each comes with its own challenges. Making your own programming cable might appear cost-effective, but it requires technical skill to ensure the right translation between RS422 and RS232. As for the RS485 to USB converter, yes, it can work if properly wired. The main issue is ensuring full duplex communication, as some converters only support half-duplex. Meanwhile, using an RS422 to RS232 converter tends to be the most straightforward option. It's designed specifically to bridge the difference between the two formats. The key here is to ensure you purchase a high-quality converter to avoid potential data loss. Also remember, irrespective of whichever approach you decide to go with, always ensure your connections are correct to prevent damaging your PLC or PC.
Your dilemma is definitely a common one among those of us working with PLCs. Option 1 can be cost-effective and educational, but its success heavily depends on your ability and comfort level when it comes to handling electronics. Things can get tricky with RS422 and RS232 differences, not to mention the risk of harming your PLC or PC if not correctly wired. As for option 2, the RS485 to USB converter approach can certainly work, but do bear in mind that RS485 is basically an improved version of RS422, so wiring changes are likely needed. Duplex communication could still potentially pose a challenge. The third option, using a direct RS422 to RS232 converter, is perhaps the safest bet, but tends to be the more expensive solution. Your choice should reflect your budgetary constraints and technical expertise, so weigh your options thoroughly!
Hey! Sounds like you're in a tricky spot, but in my opinion, each of the solutions you listed has its pros and cons. In the case of building your own cable, it could be an educational and low-cost solution, but it might be complex since RS422 and RS232 have different voltage and wiring protocols. As for the RS485 to USB converter, its feasibility depends on the availability of drivers, compatibility with your PLC and also implies handling twisted pair cabling to handle the duplex communication (leveraging a converter may introduce signal issues). The RS422 to RS232 converter sounds like a more direct solution as it'll be just converting the existing signal, but again, drivers and compatibility play an essential role. My personal preference would lean towards finding a genuine SC-09 if that’s possible as it would ensure total compatibility, though I understand your predicament. Hope this helps!
Hey there! It sounds like you're in a bit of a bind with the cable situation. For option 1, building your own cable can be tricky since you’ll need to properly handle the RS422 to RS232 conversion, but there are definitely tutorials and schematics available to guide you through the wiring specifics. Just keep in mind that you’ll need to ensure you’re correctly managing the signal levels since they operate differently. As for the RS485 to USB converter (option 2), it could work, but you might face challenges with the full/half-duplex setup, depending on your PLC’s requirements. Generally, transmission over RS485 is more robust over long distances, but you’d have to check the compatibility since RS422 and RS485 have distinct differences. Lastly, using an RS422 to RS232 converter (option 3) tends to be the simplest approach, giving you better reliability and easier communication – just watch out for the pinout and configuration issues. Each option has its merits, but go with what aligns best with your comfort level and project needs! Good luck!
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Answer: 1. How can I create a programming cable for FX2N PLC when the PLC port is RS422 and the PC port is RS232? - You can make this work by following online tutorials and using resources that provide guidance on converting between RS422 and RS232 ports.
Answer: - Yes, using a RS485 to USB converter is a feasible option. Ensure the wiring is configured properly, considering the PLC port is RS422, and be mindful of issues related to full or half duplex communication.
Answer: - The advantages of using a RS422 to RS232 converter include compatibility with different port types. Drawbacks may include potential signal interference or limitations in data transfer speeds.
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