Rockwell Automation 9220-KTCT INSTL.INSTR CONTROLNET ISA/EISA - Manual (Page 7)

ControlNet ISA/EISA Bus Tool Installation Instructions 7
9220-5.1 — November 1996
Selecting the Base I/O Space Address Location
The host addresses I/O devices on the 9220-KTCT card by using their
I/O space address. The host addresses individual devices through
registers that have addresses based on the I/O space base address.
The registers are 2 bytes long.
The 9220-KTCT is preset to base I/O space address 220. If this address
has been allocated to other interface cards or expansion memory cards
installed in your computer system, you must change the 9220-KTCT’s
switch settings to an open address.
To select a new base I/O space address:
1. Select a new base I/O space address for the card (i.e., to determine the
switch settings for the new address) using the I/O map area of your
host computer’s memory, and Worksheet D, on page 8. Be sure to
choose a block that is 2 bytes long.
Important: The 9220-KTCT card requires 2 bytes of I/O space
for each device.
2. Set the switches to the new base I/O address, using the guide below:
up (1)
down (0)
1 2 3 4
MSB LSB
Front View
up (1)
down (0)
Side View Front View
S3
3. Fill in Worksheet E, on page 9.
4. Follow the instructions that begin on page10.