Mitsubishi Electronics FX2N-8AD ユーザーズマニュアル

FX2N-8AD Analog input block

8-20

When using only the voltage input mode and the current input mode, you can improve the A/D
conversion timing (to 1/4 of the normal timing) for only one channel among CH1 to CH8.
However, the conversion timing becomes slower in other channels (to twice of the normal
timing).
To select a channel, write "K1" (for CH1) to "K8" (for CH8) to BFM #24.
(When you write "K0", the high-speed conversion function is not available.)

•

When the thermocouple input mode is used in one or more channels, the high-speed
conversion function is not available.

Example: When BFM #24 is set to "K1"

Conversion channel

1      2      1      3      1      4      1      5      1      6      1      7      1      8

Conversion timing of CH1: 500 

µ

s x 2 = 1 ms

Conversion timing of other channels: 500 

µ

s x 2 x 8 (CH) = 8 ms

(Usual conversion timing of each channel: 500 

µ

s x 8 (CH) = 4 ms)