SX-01635-000, Rev. 5 21
port.
All references to programming and structure will assume use of the National Instruments GPIB
interface package, IBIC (the Interface Bus Interactive Control software provided with National
Instruments GPIB boards to allow direct communications to the IEEE-488 bus). For other IEEE
interfaces, use these examples to form the correct program structure to generate the same
response.
When addressing the SC-5500 through the IEEE interface, common bus initialization, device
clears and device finds are required. Then, using the IBIC command structure, My Talk Address
and My Listen Address must be set for the communications board and the SC-5500. Then, when
addressing the SC-5500 to perform an instruction, an IBCMD (Interface Bus Command) state-
ment can be sent out to set up the nature of the communication occurring (i.e. SC-5500 as a
TALKER and the interface board as a LISTENER). Once the communication parameter has
been established, string commands as described in Appendix C can be sent to instruct the SC-
5500 to perform the required actions.
RS-232C Programming
The SC-5500 can be controlled through the RS-232 by use of a standard terminal program. You
will need to supply a NULL MODEM ADAPTER to use with a communications cable when
attaching the SC-5500 to a communications port of a computer. Once connected, the proper
communication parameters must be entered through the options panel of the SC-5500. The
default setting for serial communications on the SC-5500 are a baud rate of 9600, 8 data bits, no
parity and one stop bit. Once configured, simple commands may be sent across the serial line to
the SC-5500. RS-232C programming examples are provided in Appendix C.
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