About

Siemens S7-300 2AO Expansion Module

The Siemens S7-300 2AO Expansion Module, offered by Naksh Technology Solution LLP, is designed to enhance the analog output capabilities of Siemens S7-300 PLC systems.

It features 2 analog outputs, enabling precise control of analog devices such as actuators, valves, and motors in industrial automation applications. The module ensures reliable and accurate signal transmission for continuous process control.

It integrates seamlessly with the Siemens S7-300 PLC and can be easily configured using STEP 7 or TIA Portal, providing an efficient solution for applications that require high-performance analog output control in various industrial environments.

SIEMENS SIMATIC S7-300 – Analog Output Module SM 332

Article No.: 6ES7332-5HB01-0AB0

2 AO, Isolated, Voltage/Current, 11/12-bit Resolution

Supply Voltage

• Load voltage L+: 24 V DC (rated)

• Reverse polarity protection: Yes

Input Current

• From load voltage L+ (no load): max. 135 mA

• From backplane bus (5 V DC): max. 60 mA

Power Loss

• Typical: 3 W

Analog Outputs

• Number of outputs: 2

• Voltage output short-circuit protection: Yes

• Max short-circuit current: 25 mA

• Current output no-load voltage: max. 18 V

Output Ranges (Voltage)

• 0 … 10 V

• 1 … 5 V

• –10 … +10 V

Output Ranges (Current)

• 0 … 20 mA

• –20 … +20 mA

• 4 … 20 mA

Load Impedance

• Voltage outputs: ≥ 1 kΩ

• Capacitive load (voltage): ≤ 1 µF

• Current outputs: ≤ 500 Ω

• Inductive load: ≤ 10 mH

Cable Length

• Shielded: max. 200 m

Analog Output Performance

• Resolution (incl. sign):

  • ±10 V, ±20 mA, 4–20 mA, 1–5 V → 11 bits + sign

  • 0–10 V, 0–20 mA → 12 bits

• Conversion time per channel: 0.8 ms

• Settling time:

  • Resistive: 0.2 ms

  • Capacitive: 3.3 ms

  • Inductive:

    • 1 mH → 0.5 ms

    • 10 mH → 3.3 ms

Errors / Accuracy

Operational (full temperature range)

• Voltage: ±0.5 %

• Current: ±0.6 %

Basic error at 25°C

• Voltage: ±0.4 %

• Current: ±0.5 %

Diagnostics / Alarms

• Diagnostics function: Yes (parameterizable)

• Diagnostic alarm: Yes

• Diagnostic info readable: Yes

• LED indication:

  • SF (red): Yes

Isolation / Potential Separation

• Between channels: No

• Channels ↔ Backplane bus: Yes

• Channels ↔ Load voltage L+: Yes

• Channels ↔ Electronics supply: Yes

• Isolation test voltage: 500 V DC

Connection

• Required front connector: 20-pin

Mechanical Data

• Width: 40 mm

• Height: 125 mm

• Depth: 117 mm

• Weight: approx. 220 g 

Technical Details