The 6ES5 470-7LA11 is an analog output module from Siemens' Simatic S5 series, suitable for use with S5-115U/F PLCs. It provides 8 floating analog outputs for precise voltage or current signals, designed for diverse control applications that require stable and isolated ±10V outputs.

Device Description

This module features 8 analog output channels, each capable of providing either ±10V or 0-20mA signals. Outputs are galvanically isolated, enhancing noise immunity and providing stable signal transmission. The module supports a block design for convenient setup in larger systems and high-sensitivity applications.

Technical Data

    Number of Outputs: 8
    Output Ranges: ±10V, 0-20mA (rated values)
    Load Resistance:
        Voltage Outputs: Minimum 3.3 kΩ
        Current Outputs: Maximum 300 Ω
    Digital Resolution: 11 bits plus sign (1024 units represent the rated value)
    Conversion Time: 1 millisecond
    Short-Circuit Protection: Yes
        Short-Circuit Current: Approximately 25mA (voltage output)
    Open-Circuit Voltage: Approximately 18V (current output)
    Linearity: ±2.5‰ (±3 units) within the rated range
    Operational Errors: ±6‰ from 0°C to 55°C
    Permissible Overload: Approx. 25% (up to 1280 units)
    Maximum Voltage Between Load Reference (MANA) and Housing: 60V AC or 75V DC
    Cable Length: Shielded up to 200 meters (656 feet)
    Connector: 46-pin front connector
    Power Supply:
        Rated Voltage: 24V DC
        Ripple: Maximum Vpp 3.6V
        Range: 20-30V including ripple
    Current Consumption:
        From 5V (internal): 0.25A (typical)
        From 24V (external): 0.3A (typical)
    Power Loss: Approximately 8.5W
    Weight: Around 0.4 kg (0.88 lb.)

Programs: The module operates within the standard programming environment of the S5-115U PLCs, utilizing typical analog output instructions.

Data Program Information: No unique data programming features are associated with this module; it functions using standard analog output configurations.

Special Commands: Standard analog output commands within the S5 system apply; no additional special commands are required.

Repair and Commissioning Recommendations:

    Commissioning:
        Verify that the power supply voltage is within the specified range before powering the module.
        Ensure that load resistances meet the minimum requirements for voltage outputs and do not exceed the maximum for current outputs.
        Check all connections for proper shielding to prevent signal interference.
    Repair:
        Periodically inspect the module for signs of wear or damage, particularly in high-vibration environments.
        Monitor output signals to ensure they remain within specified linearity and operational error margins.
        Replace the module if it fails to maintain proper output ranges or exhibits signs of malfunction.

+ Siemens S5 115 User Manual (PDF page) 

+ Siemens 6ES5 470-7LA11 User Manual (PDF file)

+ Siemens Automation Homepage >

+ Siemens Automation Contact (for Automation Mall)