Siemens 6ES5470-8MD12 Analog Output

Precise Signal Generation for SIMATIC S5 Systems

The Siemens 6ES5470-8MD12 delivers high-accuracy analog output processing for the SIMATIC S5 programmable controller family. This module provides 4 isolated analog output channels, each generating 4-20 mA current or 0-10 V voltage signals for field actuators. Its compact housing measures 250 mm in height, 25 mm in width, and 160 mm in depth, fitting standard S5 rack slots efficiently. The total weight reaches approximately 0.55 kg, making it a lightweight yet capable addition to control cabinets.

Each output channel employs a 12-bit digital-to-analog converter for precise signal generation across the full range. The following table details the complete technical specifications for this analog output solution:

Parameter	Specification
Product Brand	Siemens
Product Model	6ES5470-8MD12
Product Category	Analog Output Module
Platform Compatibility	SIMATIC S5
Number of Channels	4 (isolated)
Output Signal Types	4-20 mA, 0-10 V
Resolution	12-bit
Conversion Time	0.5 ms per channel
Dimensions (H x W x D)	250 mm x 25 mm x 160 mm
Weight	0.55 kg
Supply Voltage	5 V DC (logic), 24 V DC (field)
Power Consumption	4.0 W typical
Load Resistance	500 Ω max (current), 10 kΩ min (voltage)
Output Accuracy	±0.5% of full scale
Operating Temperature	0°C to +60°C
Storage Temperature	-40°C to +85°C
Isolation Voltage	1500 V AC (channel-to-channel)

Channel Configuration and Output Driving Capability

The 4 isolated output channels operate independently, providing true galvanic separation between each other. This isolation prevents ground loops from affecting signal accuracy in distributed systems. Current outputs drive loads up to 500 Ω, suitable for most process actuators and valve positioners. Voltage outputs drive loads down to 10 kΩ, accommodating standard analog input modules.

Signal Accuracy and Settling Performance

Each channel maintains ±0.5% full-scale accuracy across the entire operating temperature range. The fast conversion time of 0.5 ms per channel ensures responsive updates for dynamic processes. Outputs settle within 1 ms of a step change, minimizing latency in control loops. This combination of accuracy and speed makes the module suitable for demanding applications.

Power Architecture and Environmental Tolerance

The 6ES5470-8MD12 draws 5 V DC logic power from the S5 backplane and 24 V DC field power from an external source. This separation isolates sensitive control circuits from load-induced disturbances. Channel-to-channel isolation of 1500 V AC eliminates cross-channel interference and enhances signal integrity. Operating temperatures from 0°C to +60°C cover standard industrial control room environments.