Siemens 6ES5752-0LA62 Interface Module

This interface module links SIMATIC S5 controllers to PROFIBUS FMS networks. It handles both cyclic and acyclic data exchange with master or slave devices. You can configure this unit for complex manufacturing cell integration.

Technical Specifications

Parameter	Details
Brand	Siemens
Model	Siemens 6ES5752-0LA62
Category	Interface Module (SIMATIC S5 Series)
Dimensions (H x W x D)	250 mm x 25 mm x 210 mm
Weight	0.64 kg
Protocol	PROFIBUS FMS (Fieldbus Message Specification)
Physical Interface	1x RS-485 (9-pin D-sub)
Data Rate Range	9.6 kbit/s to 12 Mbit/s (auto-detecting)
Bus Termination	Integrated switchable 220 Ω resistor network
Maximum Bus Length	100 m (12 Mbit/s) to 1200 m (9.6 kbit/s)
Number of Connections	Up to 32 devices on one segment
Internal Buffer	12 KB dual-port RAM for data exchange
Number of Internal Components	1 CPU + 1 FMS controller + 1 buffer memory + 1 PCB
Configuration Tool	COM PROFIBUS or STEP 5
Power Supply	5 V DC from backplane only
Current Draw (5V)	350 mA typical
Built-in Energy Storage	470 µF capacitor for buffer retention
Status Indicators	6 LEDs (RUN, BUS FAULT, DIAG, TX, RX, CFG)
Operating Temperature	0°C to 60°C
Protection Features	Galvanic isolation (1000 V) between bus and backplane

Detailed Feature Overview

This module supports PROFIBUS FMS at speeds up to 12 Mbit/s. It operates as either a master or slave on the fieldbus network. The 12 KB buffer manages complex data exchanges for manufacturing cells.

A 470 µF capacitor retains the buffer during brief power interruptions. Consequently, you avoid losing communication data during brownouts. The integrated termination switch simplifies bus installation at physical network ends.

You will find six status LEDs on the front panel. These LEDs show bus activity, faults, diagnostics, transmission, reception, and configuration status. The RS-485 interface uses a standard 9-pin D-sub connector.

Installation and Programming

Siemens 6ES5752-0LA62 fits any S5 rack slot except the CPU position. Use COM PROFIBUS software to assign bus parameters and device addresses. Set the termination switch to ON only at the two physical bus ends.