Both I-7188EN and PDS-700 have built-in a VxComm firmware for virtual COM applications.
PDS-700 is the enhanced version of I-7188EN and has very high compatibility with the I-7188EN. But please note that the firmware of I-7188EN and PDS-700 are only compatibility in source code level,thus you cannot run the firmware of I-7188EN in PDS-700 directly.
Most functions for I-7188EN are also available for the PDS-700. For upgrading your own firmware to the PDS-700, it is just required to recompile and link with the lib of PDS-700 without source code modification.
For better performance, PDS-700 has improvements in the following features:
1. PDS-700 series have the CPU frequency 2 times higher than 7188EN (40MHz ¡÷ 80MHZ), bigger SDRAM (384 KB ¡÷ 512KB), EEPROM (2 KB ¡÷ 16KB) and lower power consumption.
2. For better Ethernet performance, PDS-700 supports 10/100 Base-TX Ethernet (Auto-negotiating, auto MDI/MDI-X, LED indicator).
I-7188EN only supports 10BASE-Tx Ethernet.
3. PDS-700 supports more models that allow you to choose, and it has more features such as Frame-Ground design for ESD protection and Virtual I/O.
4.Comparison Sheet of I-7188EN and PDS-700:
| |
I-7188EN |
PDS-700 |
| OS |
MiniOS7 |
MiniOS7 |
| CPU |
80188-40 MHz |
80186-80 MHz |
| SDRAM/Flash |
384 KB/512 KB |
512 KB/512 KB |
| Ethernet |
10 M |
10/100 M |
| EEPROM |
2 KB |
16 KB |
| Frame Ground |
- |
Yes |
| ESD Protection |
- |
+/-4 kV |
| Total Models |
8 |
10+ |
| Models with DI/DO |
2 |
5 |
| Virtual COM |
Yes |
Yes |
| irtual I/O |
- |
Yes |
