Rockwell-automation 1769-IF16V Compact High Density Analog Input Modul Manuel d'utilisateur télécharger pdf (Page 56)

56 Publication 1769-UM018A-EN-P - October 2008

Chapter 4 Module Diagnostics and Troubleshooting

Invalid Input Format Selected

These error codes occur when the 3-bit input format code for the

indicated channel is not one of the assigned input format codes for

the module.

See 1769-IF16C Module: Bit Definitions for Input Range and Input

Data Configuration Words on page 38 or 1769-IF16V Module: Bit

Definitions for Input Range and Input Data Configuration Words on

page 39 for details on the assigned input format codes for each

module.

Alarm Not Enabled

These error codes occur when a channel is enabled and the Alarm

Latch and/or the Enable Interrupt control bits for that channel are set

but the Enable Alarm bit is not set.

See Bit Definitions for Channel Configuration Words

on page 38 for

details on setting the process alarm control bits for the modules.

Invalid Alarm Data

These error codes occur when the data entered for the high or low

process alarms for a channel exceed the full-range limits of the

channel. The full-range limits for a channel are a function of the input

range and the input format selected for the channel.

See Valid Input Data Word Formats/Ranges

on page 42 for details on

the full-range limits for each data range and data format.

These error codes may also occur if the deadband value entered for a

channel is less than 0, or is greater than or equal to one-half times the

channel’s high alarm value minus the channel’s low alarm value.

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Rockwell-automation 1769-IF16V Compact High Density Analog Input Modul Manuel d'utilisateur Page 56