Product Description
Serial Port Default Settings
| Parameter | Setting |
| Baud rate | 9600 |
| Verification Method | No Checksum |
| Stop Digit | 1 Stop Bit |
MODBUS-RTU Commands
1. 0x03: Read Holding Registers
| Byte Count |
Host sends |
e.g. |
Slave response |
e.g. |
| Byte0 | Slave address | 03 | Slave address | 03 |
| Bytel | Function code | 03 | Function code | 03 |
| Byte2 | Upper 8 bits address | 03 | Byte count | 04 |
| Byte3 | Low 8 bits address | E8 | High 8 bits word n | 00 |
| Byte4 | High 8 bits register count | 00 | Lower 8 bits word n | 00 |
| Byte5 | High 8 bits register count | 02 | High 8 bits word n | 00 |
| Byte6 | CRC16 | 45 | n lower 8 bits | 00 |
| Byte7 | CRC16 | 99 | CRC16 | D9 |
| Byte8 | - | - | CRC16 | F3 |
2. 0x06: Write Single Register
| Byte Count |
Host sends |
e.g. |
Slave response |
e.g. |
| Byte0 | Slave address | 03 | Slave address | 03 |
| Bytel | Function code | 06 | Function code | 06 |
| Byte2 | Upper 8 bits address | 03 | Upper 8 bits address | 03 |
| Byte3 | Low 8 bits address | E8 | Low 8 bits address | E8 |
| Byte4 | High 8 bits register count | 00 | Register count (high 8 bits) | 00 |
| Byte5 | Lower 8 bits register count | 02 | Register count (low 8 bits) | 02 |
| Byte6 | CRC16 | 89 | Lower 8 bits word n | 89 |
| Byte7 | CRC16 | 99 | CRC16 | 99 |
Instrument Address Setting
| S5 | S4 | S3 | S2 | S1 | Address |
| 0 | 0 | 0 | 0 | 0 | 1 |
| 0 | 0 | 0 | 0 | 1 | 2 |
| 0 | 0 | 0 | 1 | 0 | 3 |
| ... | ... | ... | ... | ... | ... |
| 1 | 1 | 1 | 1 | 1 | 32 |
Status & Fault Code Retrieval
| Value (Decimal) |
Description |
Cause of the Fault |
| 0 | Work status | Normal |
| 1 | Stopped | Normal |
| 2 | Undervoltage protection | AC input voltage too low |
| 3 | Overvoltage protection | AC input voltage too high |
| 4 | Over-temperature protection | Power supply overheating; check ventilation |
| 6-11 | Magnetron malfunction | Replace with a new magnetron |
| 255 | Communication failure | Check power supply and communication lines |
Frequently Asked Questions
Can I have a sample order?
Yes, sample order is acceptable to test and check quality for the first cooperation.
What about the lead time?
Most models are in stock. Sample lead time after receiving payment is typically 1-3 working days.
Do you have any MOQ limit?
Low MOQ; 1 piece for sample checking is available.
How do you ship the goods and how long does it take to arrive?
We often ship by DHL, UPS, FedEx, or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping are also optional.
Is it acceptable to print the buyer logo on the product?
Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Do you offer a guarantee for the products?
Yes, we offer a 1-year warranty for all power supplies.