AGFA QCR-Z, Operator'S Manual

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Installation
PROGRAMMING THE GPIB DEVICE ADDRESS
The QCR-Z is compatible with most PC systems. Knowing the rate of
data transfer from your computer will help you determine the best
operating mode for the QCR-Z.
If your bus speed is less than 8Mhz, the QCR-Z should be set to
"buffered" mode. Buffered mode activates a two scan line (8K) memory
within the QCR-Z. This helps to minimize data transfer problems
associated with slower computers.
If your computer's bus speed is 8 Mhz or higher, the QCR-Z should be
set to "un-buffered" mode. A typical PC-AT uses the un-buffered
operating mode.
Activating the buffer when using faster computers can lead to data
transfer errors.
SETTING THE GPIB DIP SWITCHES
The QCR-Z is assigned a GPIB address as part of its communication
protocol with the host. The address is set during manufacturing to 02
using a DIP switch located on the inside of the display panel. You may
set the address to one of thirty possible choices.
To change the QCR-Z's GPIB address perform the following steps:
1. Turn off the QCR-Z.
2. Remove the top cover by unscrewing the eight mounting screws.
3. Locate the eight bit DIP switch on the inside of the front panel.
4. Set the primary address bits A5 to A2 (8 to 5 on the DIP switch).
The address bit designations are per IEEE 488 standard. A5 is the
most significant bit, A1 is the least significant bit. The remaining
switches are for extended addressing that is not currently available.
These switches should be set to "1" for normal operation.
5. Replace the top cover and screws.
6. Power on the QCR-Z. The host computer will read the new address.
3-5 QCR-Z Operator's Guide Version 4