Siemens 6ES7460-3AA00-0AB0 | Transmitter Interface Module

Technical Overview of the S7-400 Transmitter Interface Module

The Siemens 6ES7460-3AA00-0AB0 transmitter interface module serves as a dedicated communication link within the SIMATIC S7-400 automation system. It connects the central controller to remote transmitters and sensors using a 20 mA current loop interface. This module supports both active and passive transmitter types for maximum application flexibility. Its galvanically isolated design ensures reliable signal transmission in electrically noisy environments. Consequently, this module enables precise process data acquisition from field instruments.

Key Technical Specifications

Specification	Details
Manufacturer	Siemens
Model Number	6ES7460-3AA00-0AB0
Product Type	Transmitter Interface Module
Compatible System	SIMATIC S7-400 (all CPU versions)
Interface Type	20 mA current loop (active/passive)
Transmission Rate	Up to 19.2 kbaud (configurable)
Galvanic Isolation	1500 VDC (between channels and backplane)
Number of Channels	2 (independent)
Supply Voltage Range	5 VDC (from backplane)
Current Consumption	Approximately 20 mA (typical)
Operating Temperature	0°C to +60°C
Storage Temperature	-40°C to +70°C
Dimensions (W x H x D)	25 mm x 290 mm x 210 mm
Weight	Approximately 0.5 kg
Protection Class	IP20
Certifications	CE, UL, CSA

Functional Capabilities and Design Features

This transmitter interface module provides two independent channels for connecting field instruments. It supports both current sink and current source configurations. The module also includes surge protection for each channel against transient overvoltages. Furthermore, onboard diagnostic LEDs indicate communication status and fault conditions. Therefore, this module ensures reliable data acquisition from pressure, temperature, and flow transmitters.

Engineering and Application Context

The Siemens 6ES7460-3AA00-0AB0 transmitter interface module plugs directly into the S7-400 backplane. Engineers configure the module using STEP 7 hardware configuration tools. The 20 mA current loop supports cable runs up to 1000 meters. Ultimately, this module provides a robust interface between S7-400 controllers and legacy 4-20 mA transmitters.