ASHDTA202

Configured for secondary I/O expansion in the Modicon Compact 984 / TSX Compact PLC architecture, the Schneider Electric ASHDTA202 (AS-HDTA-202 secondary subrack) provides two module mounting positions and internal backplane interconnections for expansion modules. It functions as a physical expansion base alongside the primary controller subrack.

Hardware Specifications

Parameter	Specification
Model	ASHDTA202
Alternate Catalog Numbers	AS-HDTA-202; DTA 202
Brand	Schneider Electric
Product Type	Secondary Subrack / Backplane Base
Product Series	Modicon Compact 984 / TSX Compact
Weight	0.55 lb
Number of Slots	2
Function	Secondary I/O and expansion module mounting with internal electrical interconnection
Mounting Type	DIN Rail / Panel Mount Subrack

Compact 984 Expansion Backplane Characteristics

The ASHDTA202 provides the mechanical and electrical base for a secondary section of a Modicon Compact 984 system. Its two-slot structure accepts compatible secondary modules and maintains their physical alignment within the subrack assembly.

The backplane provides the internal electrical interconnection required between installed expansion modules and the associated PLC system architecture. The unit is intended for system expansion without replacing the primary CPU base.

The mounting arrangement supports DIN rail or panel installation as specified for the supplied configuration. Module installation should maintain correct alignment with the subrack guides and backplane connectors.

Frequently Asked Questions

Q: How many module positions does the ASHDTA202 provide?

A: The supplied specification identifies the ASHDTA202 as a 2-slot secondary subrack.

Q: What is the primary electrical function of the ASHDTA202?

A: It provides internal backplane interconnections for compatible secondary I/O and expansion modules within the Modicon Compact 984 / TSX Compact architecture.

Q: Does the supplied data specify the operating temperature or power consumption?

A: No. The supplied data does not define an operating temperature range or power consumption value. These parameters should be verified against the applicable system documentation before installation.

Field Installation Guidelines

Install the ASHDTA202 on the specified DIN rail or panel mounting surface and verify that the subrack is mechanically secure before inserting modules. Maintain correct module orientation and ensure that each module is fully seated against its corresponding backplane connector.

Keep signal and power wiring physically organized according to the installation requirements of the associated Compact 984 system. Separate low-level signal wiring from sources of electrical noise where practical. Cable shields should be terminated according to the grounding scheme specified for the complete PLC installation.

Before energizing the system, inspect the backplane connectors for contamination, mechanical damage, or incomplete module engagement. Do not apply power with modules partially inserted or with incompatible modules installed.

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