Rockwell-automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User M Instrukcja Użytkownika Pobierz pdf (Strona 60)

2–40 How Communication Takes Place and I/O Image Table Mapping

Publication 1794ĆUM057B-EN-P - November 2001

Configuring Your Input Channel

Input Channel Configuration

03 02 01 00 Set these bits for Channel 0

07 06 05 04 Set these bits for Channel 1

11 10 09 08 Set these bits for Channel 2

15 14 13 12 Set these bits for Channel 3

Bit Settings

Input

Values

Data Format

% Underrange/

% Overrange

Input Range

Hexadecimal Decimal

Module Update Rate

(RTSI = 0) (RTSI = 0), IT=1

0 0 0 0 Channel not configured

0 0 0 1 4-20mA signed 2's complement 4% Under; 4% Over <0000-7878> <0000-30840> 7.5ms 5.0ms

0 0 1 0 +10V signed 2's complement 2% Under, 2% Over <831F-7CE1> <-31969-31969> 2.5ms 2.5ms

0 0 1 1 +5V signed 2's complement 4% Under, 4% Over <8618-79E8> <-31208-31208> 2.5ms 2.5ms

0 1 0 0 0-20mA signed 2's complement % 0% Under, 4% Over 0-2710> 0-10000> 7.5ms 5.0ms

0 1 0 1 4Ć20mA signed 2's complement % 4% Under, 4% Over <0-2710> <0-10000> 7.5ms 5.0ms

0 1 1 0 0-10V signed 2's complement % 0% Under, 2% Over 0-2710> 0-10000> 5.0ms 5.0ms

0 1 1 1 +10V signed 2's complement % 2% Under, 2% Over <-D8F0-2710> <-10000-10000> 5.0ms 5.0ms

1 0 0 0 0-20mA binary 0% Under, 4% Over 0000-F3CF> 0000-62415> 2.5ms 2.5ms

1 0 0 1 4-20mA

binary 4% Under, 4% Over 0000-F0F1> 0000-61681> 7.5ms 5.0ms

1 0 1 0 0-10V binary 0% Under, 2% Over 0000-F9C2> 0000-63938> 2.5ms 2.5ms

1 0 1 1 0-5V binary 0% Under, 4% Over 0000-F3CF> 0000-62415> 2.5ms 2.5ms

1 1 0 0 +20mA offset binary, 8000H = 0mA 4% Under, 4% Over <0618-F9E8> <1560-63976> 2.5ms 2.5ms

1 1 0 1 4-20mA offset binary, 8000H = 4mA 4% Under, 4% Over <8000-F878> <32768-63608> 7.5ms 5.0ms

1 1 1 0 +10V offset binary, 8000H = 0V 2% Under, 2% Over <031F-FCE1> <799-64737> 2.5ms 2.5ms

1 1 1 1 +5V offset binary, 8000H = 0V 4% Under, 4% Over <0618-F9E8> <1560-63976> 2.5ms 2.5ms

Underrange for 4Ć20mA occurs in the blind area below 0 (3.2mA).

2 < and > indicate the overrun beyond actual range (about 5%).

Word/Bit Descriptions for the 1794-IF4I Isolated Analog Input

Module

Word

Decimal Bit

(Octal Bit)

Definition

Read Word 1

Bits 00-15

(00-17)

Channel 0 analog data - Real time input data per your configuration

Read Word 2

Bits 00-15

(00-17)

Channel 1 analog data - Real time input data per your configuration

Read Word 3

Bits 00-15

(00-17)

Channel 2 analog data - Real time input data per your configuration

Read Word 4

Bits 00-15

(00-17)

Channel 3 analog data - Real time input data per your configuration

Read Word 5

Bits 00-15

(00-17)

Real Time Sample. The elapsed time in increments programmed by the real

time sample interval.

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 123 124

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