Rockwell-automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual Instrukcja Użytkownika Pobierz pdf (Strona 50)

Publication 1794-UM064B-EN-P - May 2014

38 Communicate With Your Module

1794-IRT8 Word/Bit Descriptions for Block Transfer Words

Word Dec. Bits

(Octal Bits)

Description

Write Word 0 00…02 Inpt Filter Cutoff Bits

Bit 02 01 00 Filter Time Constants – Actual filtering depends on the module’s mode

of operation.

0 0 0 Hardware filtering only (default filtering).

00125 ms

010100 ms

011250 ms

100500 ms

1011 s

1102 s

1115 s

03…05 Reference Junction – Used when input type is set to thermocouple and sensor mode is set to internal

compensation. Sets a fixed reference junction to compensate all thermocouple channels.

Bit 05 04 03 Reference Junction

0000 °C

00120 °C

01025 °C

01130 °C

10040 °C

10150 °C

11060 °C

11170 °C

06…07 Fault Mode Bits – When a bit is set (1), fault mode is enabled for that channel. Bit 06 corresponds to

channels 0…3; bit 07 corresponds to channels 4…7.

0 = disabled

1 = enable wire-off detection

08…11

(10…13)

Data Format – Module defaults to -4000...10000 in millivolt mode, and 0...5000 in ohms mode with implied

decimal points (for example -40.00, 0.0 Ω ).

Bit 11 10 09 08 Data type for channels 0-7

0 0 0 0 °C (implies decimal point XXXX.X)

0 0 0 1 °F (implies decimal point XXXX.X)

0 0 1 0 °K (implies decimal point XXXX.X)

0 0 1 1 -32767...3267

01000...65535

0101...1111 not used

12…15

(14…17)

Not used

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 152 153

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