Rockwell-automation 1794-IJ2XT FLEX I/O Frequency Input Modules User M Manual do Utilizador descarregar pdf (Página 58)

Publication 1794-6.5.11 - September 2011

48 Read and Write Configuration Maps for the FLEX I/O Module

Word 6 Bit 13 (15) Invert Select – Gate Input (channel 1) – Selects whether to invert the Gate input signal,

if not using an Active High (24V = On) 24V DC IEC 1+ sensor or “Normally Open” relay or

switch contact on the 24V DC Gate Input terminal. Allows compatibility with an Active

Low (0V = On) 24 V DC IEC 1+ sensor or “Normally Closed” relay contact on the 24V DC

Gate Input terminal.

0 = Normal (Active High, 24V = On),

1 = Invert input (Active Low, 0V = On)

Default = 0 – Normal (Active High, 24V = On)

Bit 14 (16) Wire Off Fault Select – Frequency Input (channel 1) – Selects whether to turn On or Off

the 24V DC Frequency input IEC 1+ hardware Wire Off (Lead Breakage) detection.

0 = Disable,

1 = Enable

Default: = 0 – Disable

Note: Customer devices must draw more than 0.4 mA in the On and Off State. To use

this feature with relays or switches, connect a shunt resistor (~ 50K) across the

contacts.

Bit 15 (17) Wire Off Fault Select – Gate Input (channel 1) – Selects whether to power On or Off the

24V DC Gate input IEC 1+ hardware Wire Off (Lead Breakage) detection.

0 = Disable,

1 = Enable

Default = 0 – Disable

Note: Customer devices must draw more than 4 mA in the On and Off State. To use this

feature with relays or switches, connect a shunt resistor (~ 50K) across the contacts.

Input Map

Bit 15141312111009080706050403020100

Word Read

0 Frequency 0…32,767 or 0.0…3,276.7 Channel 0

1 % Full Scale 0.0…3,276.7% Channel 0 or Acceleration -32,768…32,767 Channel 0

2 Frequency 0…32,767 or 0.0…3,276.7 Channel 1

3 % Full Scale 0.0…3,276.7% Channel 1 or Acceleration -32,768…32,767 Channel 1

4 R R Direction

Ch 0

F/A

Ch 0

MPA

Ch 0

R R Direction

Ch 1

F/A

Ch 1

MPA

Ch 1

5 Reserved Diagnostic Status

Channel 0

Reserved Diagnostic Status

Channel 1

6 Reserved

Where: R = Reserved

GS = Gate state

F/A = Frequency/Acceleration alarm

WO = Wire-off alarm

MPA = Missing pulse alarm

Bit/Word Definitions for the Block Transfer Write Words

Word Bit

Definition

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 86 87

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