Name: 6ES7322-1BH01-0AA0 | Siemens S7-300 16-Channel DO Module
SKU: 6ES7322-1BH01-0AA0
Availability: InStock

Product details

Product Description

6ES7322-1BH01-0AA0 is a 16-channel digital output module for the Siemens SIMATIC S7-300 series. It provides isolated 24 V DC outputs at 0.5 A per channel. The module includes electronic short-circuit protection and supports redundant load control. Its compact design (40 mm width) fits well in industrial cabinets. It is a reliable and cost-effective DO solution.

Technical Specifications (Tree Structure)

Power Supply
- Load voltage L+: 24 V DC (20.4 … 28.8 V)
- Current draw from L+ (no load): ≤ 80 mA
- Current draw from backplane bus 5 V DC: ≤ 80 mA
Power Loss
- Typical: 4.9 W
Digital Outputs
- Channels: 16 (isolated, in groups of 8)
- Short-circuit protection: electronic (trip level ≈1 A)
- Output current (“1” signal): 0.5 A rated, 0.6 A max
- Minimum load current: 5 mA
- Output delay (resistive load): 0→1 max 100 µs, 1→0 max 500 µs
Switching Frequency
- Resistive load: ≤ 100 Hz
- Inductive load: ≤ 0.5 Hz
- Lamp load: ≤ 10 Hz
Total Current (per group)
- Horizontal mounting (≤40 °C): 4 A
- Horizontal mounting (≤60 °C): 3 A
- Vertical mounting (≤40 °C): 2 A
Cable Length
- Shielded: max 1000 m
- Unshielded: max 600 m
Isolation & Protection
- Isolation between channels: yes (in groups of 8)
- Isolation to backplane bus: optocoupler
- Isolation test voltage: 500 V DC
Dimensions & Weight
- W x H x D: 40 x 125 x 120 mm
- Weight: approx. 190 g

Expert Review & Manager’s Insight

Expert Review: This module offers very low output delay, which suits high-speed switching applications. The electronic short-circuit protection boosts system reliability. Remember to derate when mounted vertically.

Manager’s Insight: The 16-point density saves rack space. No diagnostic functions, but the cost advantage is clear. Recommended for standard digital control tasks.

Suitable Equipment & Applications

PLC systems: SIMATIC S7-300 series (e.g., CPU 315-2DP)
Actuators: relays, solenoid valves, indicator lamps
Applications: conveyor control, packaging machinery, simple logic switching
Environment: industrial plants, 0–60 °C horizontal installation

Professional FAQ

Can I parallel outputs to increase current?
No, paralling for uprating is not allowed. But you can use two outputs for redundant control of one load.
How to connect inductive loads?
You must use a freewheeling diode. Switching frequency is limited to 0.5 Hz.
What do the LEDs indicate?
Each channel has a green LED that lights up when the output is “1”.
Will a short to ground damage the module?
Electronic protection limits current, but you must clear the fault to resume normal operation.
Can I hot-swap the module?
No, you must install or remove it only when the power is off.