Rockwell-automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual Uživatelský manuál stáhnout pdf (Strana 45)

Publication 1794-UM064B-EN-P - May 2014

Communicate With Your Module 33

1794-IT8 Word/Bit Descriptions

Word Decimal Bit Definition

Read Word 0 00…15 (00…17) Reserved

Read Word 1 00…15 (00…17) Channel 0 Input data

Read Word 2 00…15 (00…17) Channel 1 Input data

Read Word 3 00…15 (00…17) Channel 2 Input data

Read Word 4 00…15 (00…17) Channel 3 Input data

Read Word 5 00…15 (00…17) Channel 4 Input data

Read Word 6 00…15 (00…17) Channel 5 Input data

Read Word 7 00…15 (00…17) Channel 6 Input data

Read Word 8 00…15 (00…17) Channel 7 Input data

Read Word 9 00…07 (00…07) Underrange bits – These bits are set if the input signal is

below the input channel’s minimum range.

08…15 (10…17) Overrrange bits – These bits are set if 1), the input signal

is above the input channel’s maximum range, or 2), an open

detector is detected.

Read Word 10 00 Not used – set to 0.

01 Cold Junction sensor underrange bit – This bit is set if

the cold junction temperature is below 0 °C.

02 Cold Junction sensor overrange bit – This bit is set if

the cold junction temperature is above 70 °C.

03 Power Up bit – This bit is set (1) until configuration data is

received by the module.

04…06 Critical Fault bits – If these bits are anything other than

zero, return the module to the factory for repair.

07 Unused – Set to 0.

08 (10) Calibration Out of Range bit – Set to 1 if a reference

signal is out of range during calibration.

09 (11) Calibration Done bit – Set to 1 after an initiated

calibration cycle is complete.

10 (12) Calibration Bad bit – Set to 1 if the channel has not had a

valid calibration.

11…15 (13…17) Unused – Set to 0.

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 152 153

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Rockwell-automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual Uživatelský manuál Strana 45