Serial IO Hardware Setting (4-PORT / 2)
To install a Moxa Smartio/Industrio 4-port board in a VLC as the second serial board, the IO port and IRQ
settings of the board must be changed to 0x200 / IRQ 5 by means of the DOS based configuration utility
shipped with the board.
The following steps describe how to install the card into a running VLC.
1. Shut down the VLC, switch it off.
2. Open the housing.
3. Install the board in a free slot.
4. Install the jumper at the rounded corner of the board (it's the only jumper on this board).
5. Connect a VGA computer monitor and a keyboard to the VLC.
6. Switch on the unit.
7. Press 'F5' when the VLC asks to do so. The VLC only waits for 3 seconds at this point, so keep an
eye on the messages on the screen.
8. At the DOS prompt, enter MOXA
9. The configuration program first asks to select the card type (choose 'Smartio'), then it asks for the
board address. Enter 'A700'.
10. Set the port addresses and IRQs according to the table shown below:
IO Port 200
208
210
218
IRQ
5
5
5
5
Speed
Normal Normal Normal Normal
Int.Vec.
11. Press F10 to save the changes.
12. Remove the jumper from the board.
13. Close the housing and reboot the VLC (CTRL+ALT+DEL)
The RS485 version of the 4-port card additionally has 4 jumpers to enable the line termination resistors and
eight dip switches to select the behavior of the RS485/RS422 ports. The VLC software uses a RS422 4-wire
cabling with most of the equipment. The switch positions to operate all ports in RS422 mode is shown
below:
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VLC-IM-2002 Page 23/39
