| ??? 09/06/08 09:23 Read: times |
#157996 - 2 chips... Responding to: ???'s previous message |
Interface is through serial port. The following would be the requirements for different measurements.
1. single phase UPS - 2 EM chips, 1 controller with 2 serial ports 2. 3 ph in 1 ph out UPS : 4 EM chips (or 2), 1 controller with 4 serial ports or 2 serial ports. 3. 3 ph in 3 ph out - 2 3 phase EM chips (cost is almost 5 times the cost of 1 ph EM chip) or 6 1 ph EM chips - 1controller with 2 serial ports or 6 serial ports. The above situation puts me in a spot!! pulse output cannot be used since I won't be able to measure anything. |
| Topic | Author | Date |
| Energy meter chips for non-energy meter applicatio | 01/01/70 00:00 | |
| Not necessarily | 01/01/70 00:00 | |
| 2 chips... | 01/01/70 00:00 | |
| RS-485 is the answer | 01/01/70 00:00 | |
| SPI is available | 01/01/70 00:00 | |
| How much filtering? | 01/01/70 00:00 | |
| 15 cycles is fine!! | 01/01/70 00:00 | |
| 5 to 6% accuracy | 01/01/70 00:00 | |
| 5 to 6% accuracy ??? | 01/01/70 00:00 | |
Accuracy | 01/01/70 00:00 | |
| APFC not APF | 01/01/70 00:00 |