SKU: PCDVP023000
Product Type: PLC Programming / Communication Cable
Connector Type: DB9 Male to Mini DIN 8P Serial Cable
Cable Length: 3 Meter
Brand: Smidnya / Smidmart

1. Overview

The PC - Delta PLC DVP Series Programming Cable (3 Meter) is a dedicated communication cable used for programming and data transfer between a PC/laptop and Delta DVP Series PLCs. It supports reliable communication for:

• Program upload / download

• PLC monitoring

• Commissioning

• Maintenance and troubleshooting

Its 3-meter length provides flexibility during field setup and service work. The cable is designed for stable communication in industrial environments.

2. Applications

This cable is commonly used for:

• PLC program upload/download

• Online monitoring of PLC data

• Machine commissioning

• Parameter setting

• Maintenance & troubleshooting

• Service support in control panels

3. Compatibility

Supported Devices

• Delta DVP Series PLCs (communication port must match Mini DIN 8P interface)

PC/Laptop Side

• PC/Laptop with RS-232 (DB9) COM port

• If no COM port is available (common in modern laptops), use:

  • USB to RS232 converter (recommended industrial-grade adapter)

Important: Compatibility depends on the PLC communication port type. Always verify the port before connection.

4. Connector Details

• Connector A: DB9 Male

• Connector B: Mini DIN 8P Male

• Cable Type: Serial communication / programming cable

• Length: 3 Meter

5. Pinout / Wiring Reference

Use the official pinout / mapping image for this cable in this section (recommended to attach the image in KB article attachments or embed it in article body).

Important Note

• Always verify PLC/HMI communication port pinout before connecting.

• Incorrect pin mapping or forced insertion may cause communication failure or port damage.

6. How to Use (Step-by-Step)

Method A: PC with DB9 COM Port

1. Turn off/idle the machine safely (as per plant SOP).

2. Connect the Mini DIN 8P end to the Delta DVP PLC communication port.

3. Connect the DB9 Male end to the PC COM port.

4. Open the Delta PLC programming software.

5. Select the correct COM port in software settings.

6. Configure communication parameters (baud rate, parity, stop bits, etc.) as required.

7. Click Connect/Test Communication.

8. Start upload/download/monitoring as needed.

Method B: Laptop without DB9 COM Port

1. Connect a USB to RS232 converter to the laptop.

2. Install converter driver (if required).

3. Connect the cable DB9 end to the converter.

4. Connect Mini DIN 8P end to the PLC.

5. Open Device Manager and confirm assigned COM port number.

6. Select the same COM port in Delta software.

7. Test communication and proceed.

7. Common Issues & Solutions (Troubleshooting)

7.1 PLC Not Communicating

Possible causes

• Wrong COM port selected

• Wrong communication settings

• Loose connection

• Unsupported converter / faulty adapter

• Incorrect pinout assumption

Solutions

• Check and select the correct COM port

• Verify baud rate / parity / stop bit settings

• Reconnect both ends firmly

• Test with another USB-RS232 converter

• Verify PLC port type and cable compatibility

• Restart software and reconnect

7.2 COM Port Not Showing on Laptop

Possible causes

• USB-RS232 driver not installed

• Converter not detected

• Faulty USB port/cable

Solutions

• Install / reinstall the USB-RS232 driver

• Try another USB port

• Check Device Manager for port detection

• Replace converter if needed

7.3 Intermittent Communication / Disconnects

Possible causes

• Loose DB9 connector

• Noise interference from power cables/VFD lines

• Poor quality USB-RS232 converter

• Damaged cable

Solutions

• Tighten and secure connectors

• Route communication cable away from high-power cables

• Use shielded / industrial-grade adapter

• Inspect cable for cuts, bends, or connector damage

• Test on another PC/laptop

7.4 Laptop Has No DB9 Serial Port

Solution

• Use a USB to RS232 converter

• Prefer converters with stable drivers for industrial use

7.5 Software Connects But Upload/Download Fails

Possible causes

• PLC in RUN mode restrictions (depending on software/PLC settings)

• Incorrect station/address settings

• Program/software version mismatch

Solutions

• Check PLC mode and connection settings

• Confirm software communication parameters

• Retry with correct PLC model selection in software

8. Safety & Handling Guidelines

• Do not force connector insertion

• Check connector orientation before plugging in

• Avoid sharp bends / twisting of cable

• Keep away from moisture, oil, and physical crushing

• Disconnect carefully after use

• Store in a dry, dust-free place

9. Technical Specifications

10. FAQs

Q1. Is this cable compatible with all Delta PLCs?

Not necessarily. It is intended for Delta DVP Series PLCs with matching communication port type. Please verify the PLC port before purchase/use.

Q2. Can I use this cable directly with a laptop?

Yes, if the laptop has a DB9 serial port. Otherwise, use a USB to RS232 converter.

Q3. Why is communication not starting even after connection?

Common reasons include wrong COM port, wrong communication settings, or unsupported USB-RS232 converter. Follow the troubleshooting steps above.

Q4. Can this cable be used for continuous machine communication?

This cable is generally used for programming, monitoring, setup, and troubleshooting. For permanent communication setups, confirm application requirements and interface specifications.

Q5. Does cable length affect communication?

A 3-meter cable is generally suitable for programming/service use. In noisy environments, routing and shielding quality matter.

11. When to Contact Smidnya Support

Contact support if:

• You are unsure about PLC port compatibility

• Communication fails after trying the troubleshooting steps

• You need the correct USB-RS232 converter recommendation

• You want a cable for a different PLC/HMI model

• You need installation / commissioning assistance