Measurement-computing CIO-DAS08-AOH Manuel d'utilisateur télécharger pdf (Page 8)

3.4 WAIT STATE

A wait state may be enabled on the CIO-DAS08-AOx by selecting WAIT

STATE ON at the jumper provided on the board. Enabling the wait state

causes the personal computer's bus transfer rate to slow down whenever the

CIO-DAS08-AOx is written to or read from.

The wait state jumper is provided in case you one day own a personal

computer with an I/O bus transfer rate which is too fast for the

CIO-DAS08-AOx. If your board were to fail sporadically in random ways,

you could try using it with the wait state ON.

Figure 3-4. Wait State Jumper Block

3.5 D/A RANGE SWITCH

The analog output voltage range is selectable. A set of DIP switches, one set of six per channel, allow you to choose a range

for each channel (Figure 3-5 and Table 3-3). .

Figure 3-5. Analog Output Range Switches - Typical

Table 3-3. Analog Output Range Select Switches Coding

UDDDUD0-1.67

DUDDUD0-2.5V

DDUDUD0-5V

DDDUUD0-10V

UDDDDU+/-1.67V

DUDDDU+/-2.5V

DDUDDU+/-5V

DDDUDU+/-10V

S6S5S4S3S2S1RANGE

RANGE SELECTION SWITCH SETTINGS - U = Up, D = Down

WAIT

STATE

wait state is not selected on this

jumper block. For a wait state,

place the jumper on the two

leftmost pins.

WAIT STATE JUMPER BLOCK - A

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 31 32

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Measurement-computing CIO-DAS08-AOH Manuel d'utilisateur Page 8