VMM-D3/D4 Shutter Driver
22
controller in the chain. Figure 6 illustrates connecting two controllers from a single serial port.
Once connected, each unit will require a unique address in the chain. This is accomplished by
adjusting the octal switch labeled SW1 located beneath the 9-Pin D-sub connector on the front
panel to the desired command range. Please see “SW1 Address Select” elsewhere in this manual
for a complete listing of the command range for each octal switch position. The specific
command range set will decode commands sent via the serial port. A set of “ALL” commands is
also available to control all units connected to the serial port. For a single unit not requiring a
daisy-chain configuration, a
910RS
cable (not supplied) can be used. Please refer to Figure 6.
Figure 6: VMM-D3 Daisy-Chain Cable Configuration
RS-232C Test Program
The following is a test program written to test the input commands to the RS-232C interface of
the
VMM-D3/D4
controllers. This program and LabView programs (not listed) are available by
downloading from the
RESOURCES
section of our web site (www.
UNIBLITZ
.com), request
via e-mail (vincentassociates@
UNIBLITZ
.com), or calling (800) 828-6972. Other programs
may be available, please contact technical support for further information.
REM PROGRAM TO SEND COMMAND PULSES TO VMM-D3 RS232 INTERFACE,
XILINX CPLD.
VMM-D3 THREE CH SHUTTER DRIVER
R
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