Rockwell-automation 1747-DTAM-E,D17476.1 Data Table Access Module (DTA Uživatelský manuál stáhnout pdf (Strana 35)

Publication 1747-6.1

Chapter

Monitoring and Modifying Data

This chapter describes:

• operating modes

• logical data file addressing

• Backspace Function during data file address entry

• quick access addressing

• entering data file addresses

• changing displayed data file addresses

• changing data file values

Operating Modes

The module has two operational modes, Modify and Monitor.A

Monitor Override feature is also provided.

Modify Mode

The module is shipped from the factory configured for the Modify

mode. This mode allows access to all features available in the module.

Refer to chapter 2, Installation and Power Up, for details on the

Modify mode configuration.

Monitor Mode

When the module is configured for the Monitor mode, you are

allowed to display values contained in data file words. Alteration of

data within the processor data files is prohibited. This mode of

operation is provided to prevent unauthorized access to certain

processor functions. Refer to chapter 2, Installation and Power Up,

for details on configuring the unit for the Monitor mode.

Monitor Override Feature

When configured for the Monitor mode, a Monitor Override feature

is provided to allow data modification of up to ten user-defined data

file addresses using the Quick Recall Functions. Refer to chapter 3

for details on how to use the module setup procedure to configure this

feature. Refer to chapter 6 for a description of the Quick Recall

Functions.

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Rockwell-automation 1747-DTAM-E,D17476.1 Data Table Access Module (DTA Uživatelský manuál Strana 35