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Rockwell Automation Publication 1715-UM001J-EN-P - December 2020
Chapter 6 Configure the Redundant I/O System
Table 37 - Limits Parameters for Analog Output Duplex Module
Parameters
Description
Channel
Click the channel number to configure parameters for the specified channel (0…7).
High Clamp Limit
Enter a High Clamp Limit (between -9999999…99999999). The default is 100.0000. The High
Clamp Limit must be greater than the Low Clamp Limit.
Any out of range value causes a profile validation error.
HI appears dimmed only when in Hard Run mode.
Unlatch High Clamp Limit
Click Unlatch High Clamp Limit to send a message to the module to unlatch a High Limit Alarm
(online only).
Unlatch (High Clamp) is enabled when online (including Hard Run mode) and when Latch Limit
Alarms is selected. Unlatch (High Clamp) is dimmed when offline and online (including Hard Run
mode) when Latch Limit Alarms is cleared.
Low Clamp Limit
Enter a Low Clamp Limit (between -9999999…99999999). The default is 0.0000. The Low Clamp
Limit must be less than the High Clamp Limit.
Any out of range value causes a profile validation error.
LO appears dimmed only when in Hard Run mode.
Unlatch Low Clamp Limit
Click Unlatch Low Clamp Limit to send a message to the module to unlatch a Low Limit Alarm
(online only).
Unlatch (Low Clamp) is enabled when online (including Hard Run mode) and when Latch Limit
Alarms is selected. Unlatch (Low Clamp) is dimmed when offline and online (including Hard Run
mode) when Latch Limit Alarms is cleared.
Unlatch All
Click Unlatch All to send a message to the module to unlatch all latched alarms (High Limit, Low
Limit and Ramp Alarm).
Ramp in Run Mode
Check this checkbox to establish whether to limit the rate of change of the output. If selected,
then changes due to command values, fault actions, and program actions are limited to the
specified ramp rate.
Ramp Rate
Enter the maximum ramp rate for changes in the output value (in seconds). The default is blank,
which results in an auditing error. This default forces you to enter an appropriate value.
Unlatch Ramp Rate
Click Unlatch Ramp Rate to send a message to the module to unlatch based on Ramp Rate.
Unlatch (Ramp Rate) is enabled when online (including Hard Run mode) and when Latch Rate
Alarm is selected. Unlatch (Low Clamp) is dimmed when offline and online (including Hard Run
mode) when Latch Rate Alarm is cleared.
Disable All Alarms
Check the checkbox to not report Latch Limit and Latch Rate Alarms in the input tag. By default,
Disable All Alarms is enabled and cleared.
Latch Limit Alarms
Check the checkbox if you want the High Clamp and Low Clamp Limit Alarms to be latched until a
message resets them or by the use of a latch reset member of the output tag. By default, Latch
Limit Alarms is enabled and cleared.
Latch Rate Alarm
Check the checkbox if you want the Rate Alarm to be latched until it is reset either by a message
or by use of a latch reset member of the output tag. By default, Latch Rate Alarm is dimmed and
cleared.