Measurement-computing PC104-DAS16JR/12 Instrukcja Użytkownika Pobierz pdf (Strona 17)

WRITE

Writing any data to the register causes an immediate A/D conversion.

3.2.2 16-BIT BOARDS

A/D15

LSB

A/D14A/D13A/D12A/D11A/D10A/D9A/D8

01234567

A read/write register.

READ

On read, it contains the least significant eight digits of the Analog input data.

These eight bits of analog input data must be combined with the eight bits of

analog input data in BASE + 1, forming a complete 16 bit number. The data is in

the format 0 = minus full scale. 65,536 = +FS.

WRITE

Writing any data to the register causes an immediate A/D conversion.

BASE ADDRESS + 1

A/D7A/D6A/D5A/D4A/D3A/D2A/D1A/D0

MSB

01234567

A Read-only register.

On read the most significant A/D byte is read.

3.3 CHANNEL MUX SCAN LIMITS REGISTER

BASE ADDRESS + 2

CH L1CH L2CH L4CH L8CH H1CH H2CH H4CH H8

01234567

A read and write register.

READ

The current channel scan limits are read as one byte. The high channel number

scan limit is in the most significant 4 bits. The low channel scan limit is in the

least significant 4 bits.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 31 32

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Measurement-computing PC104-DAS16JR/12 Instrukcja Użytkownika Strona 17