National Instruments GPIB-MAC User Manual page 68

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November 1985
If this is the first function you call that requires GPIB
controller capability, and you have not disabled System
Controller capability with rsc, the GPIB-MAC sends
Interface Clear (IFC) to make itself CIC. It also asserts
Remote Enable.
If you passed control to some other GPIB device,
control must be passed back to you or you must send
IFC to make yourself CIC before making this call.
Otherwise, the ECIC error will be posted.
If the address of the GPIB-MAC is included in
GPIB-MAC disables itself from responding to parallel
polls.
Refer also to
parallel polls.
Examples:
1. PRINT #l,"ppu 14"
2. PRINT #l,"PPU"
57
SECTION FOUR - FUNCTIONS
ist,
and to Appendix F on
'Send the PPU command to device 14.
'Send the PPU command to all devices.

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