Rockwell-automation SA3100 Distributed Power System Drv Config,Program Manuale Utente Scaricare il pdf (Pagina 46)

3-8

SA3100 Drive Configuration and Programming

3.2.2 Analog Data Formats

Data is returned from the Flex I/O module’s analog-to-digital converter with 12-bit

resolution. The value is left-justified into a 16-bit field, reserving the most significant bit

for a sign bit.

A/D Unipolar Data

11 10 09 08 07 06 05 04 03 02 01 00

⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓

Analog Value 0*141312111009080706050403020100

Input

* = Always positive

A/D Bipolar Data S 10 09 08 07 06 05 04 03 02 01 00

⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓

Analog Value S 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

D/A Data

S 111009080706050403020100

Output

⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓

Analog Value S 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Table 3.5 – Analog Data

Current

(mA)

4-20mA

Mode

0-20mA

Mode Voltage (V)

+/- 10 Volt Mode

0-10 Volt

ModeInput Output

-10.5 -32768 -32768

0 0 -10.0 -31200 -31208

1 1560 -9.0 -28080 -28088

2 3120 -8.0 -24960 -24968

3 4680 -7.0 -21840 -21848

4 0 6240 -6.0 -18720 -18728

5 1927 7800 -5.0 -15600 -15608

6 3854 9360 -4.0 -12480 -12488

7 5782 10920 -3.0 -9360 -9368

8 7710 12480 -2.0 -6240 -6248

9 9637 14040 -1.0 -3120 -3128

10 11565 15600 0 0 0 0

11 13492 17160 1.0 3120 3120 3120

12 15420 18720 2.0 6240 6240 6240

13 17347 20280 3.0 9360 9360 9360

14 19275 21840 4.0 12480 12480 12480

15 21202 23400 5.0 15600 15600 15600

16 23130 24960 6.0 18720 18728 18728

17 25057 26520 7.0 21840 21848 21848

18 26985 28080 8.0 24960 24968 24968

19 28912 29640 9.0 28080 28088 28088

20 30840 31200 10.0 31200 31208 31208

21 32767 32760 10.5 32752 32760 32760

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 161 162

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