VP-2111 and VH-2110 series compare table :

Hardware:
   Please refer Datasheet:
     ftp://ftp.icpdas.com/pub/cd/8000cd/napdos/vp-2000/document/data_sheet/
   or web page:
     http://www.icpdas.com/products/PAC/viewpac/selection_guide.htm
     
Software:

--------------------------------------------------------------------------------------------     
|       Model:           |       VP-2111        |        VH-2110       |use the same file? |
|------------------------|----------------------|----------------------|-------------------|
|       OS Image:        | vp2111_20090603.img  | VH2110_20100419.img  |        No         |
|------------------------|----------------------|----------------------|-------------------|
|         |     CPU:     |      VP2k.lib        |      VH2k.lib        |        No         |
|         |--------------|----------------------|----------------------|-------------------|
|         |     LCD:     |     vp2k_lcd.lib     |     vp2k_lcd.lib     |       Yes         |
|         |--------------|----------------------|----------------------|-------------------|
| Library | IO_in_Slot:  |  8017hl.lib and etc  |         None         |        -          |
|         |--------------|----------------------|----------------------|-------------------|
|         | 64MB Flash:  |    MFS_V211.lib      |         None         |        -          |
|         |--------------|----------------------|----------------------|-------------------|
|         |   TCP/IP:    |    tcp_dm32.lib      |      tcp_dm32.lib    |       Yes         |
|         |--------------|----------------------|----------------------|-------------------|
|         |   Framework: |    FW_09314.lib      |      FW_09314.lib    |       Yes         |
--------------------------------------------------------------------------------------------