beautypg.com

Rockwell Automation 1797-OE8 FLEX Ex Analog Modules User Manual User Manual

Page 31

background image

Publication 1797-6.5.1 - May 2005

Understanding Configurable FLEX Ex Analog Module Features 2-15

Bit/Word Description for the Analog Input Modules
(1797-IE8 and -IE8NF)

Table 2.8 Fault Mode - Write Words 0 and 1

Table 2.9 “Add-On” Filter Selections - Write Words 0 and 1

Table 2.10 Remote Transmitter Error Up/Down - Write Words 0 and 1

Word 0

Bit 00

Fault enable for channels 0-3

Word 1

Bit 00

Fault enable for channels 4-7

Where:

0 = disabled
1 = enable with wire-off and overload or short circuit

Word

Bits

Description

0

07 06 05 Channels 0-3

1

07 06 05 Channels 4-7

0

0

0

Hardware filtering only (default filtering)

(1)

(1)

1797-IE8NF is reserved.

0

0

1

40Hz (25ms)

(1)

0

1

0

20Hz (50ms)

(1)

0

1

1

10Hz (100ms)

1

0

0

4Hz (250ms)

1

0

1

2Hz (500ms)

1

1

0

1Hz (1s)

1

1

1

0.5Hz (2s)

Word 0

Bit 08

Up/down channels 0-3

Word 1

Bit 08

Up/down channels 4-7

Where:

0 = remote fault is enabled by transmitter overrange
1 = remote fault is enabled by transmitter underrange