IEEE-488 PROGRAMMING
4.6 TIMING CONSIDERATIONS
A consideration for the IEEE-466 programming is trans-
mission times of data over the bus and the time it takes
for the Model 263 to perform the tasks defined by device-
dependent commands.
Typically, a command string sent to the Model 263 will
transmit at a rate of one character per millisecond. For ex-
ample, the command string “FlZlOlX” will typically take
7msec to transmit from the controller to the Model 263.
The time it takes for the Model 263 to perform the tasks
of the command string is typically 16msec. This is the time
from “X” to “instrument configured”.
When the Model 263 is sending a reading to the controller,
the transmission rate will typically be one character per
0.2msec. The output of the Model 263 is refreshed once
per second. Thus, the Model 263 will only place one
reading per second on the bus.
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