6ES7322-1BL00-0AA0 SIEMENS Digital I O Module 12/24 Volts DC 4 And 20 MA 120 V AC
6ES7322-1BL00-0AA0 Description
The 6ES7322-1BL00-0AA0 is a high-density digital output module from the SIMATIC S7-300 PLC series, designed for switching DC 24 V loads in industrial automation systems. It provides 32 optically isolated transistor output channels (sink-type / NPN), enabling direct control of actuators such as contactors, solenoid valves, indicator lamps, relays, and small motors. With high switching capacity, strong noise immunity, and compact dimensions, it is widely used for high-density output expansion in machine tools, assembly lines, and process control applications.
6ES7322-1BL00-0AA0 Key Features
- 32-point transistor digital outputs (sink / NPN type)
- Galvanic optical isolation between channels and backplane bus
- Rated load voltage DC 24 V, suitable for standard industrial actuators
- High switching capacity with short-circuit and overload protection
- LED status indicators for each output channel for quick diagnostics
- 40-pin front connector for fast, reliable wiring
- No slot restrictions; compatible with all S7-300 CPUs
- Space-saving slim design for control cabinet installation
- High noise immunity and vibration resistance for harsh environments
6ES7322-1BL00-0AA0 Materials & Applications
Materials
- Housing: High-strength flame‑retardant thermoplastic (UL94 V‑0)
- Internal PCB: Industrial‑grade FR‑4 glass epoxy circuit board
- Terminals: Gold‑plated contacts for stable connection
- Isolation components: High-reliability optocouplers
- Connector: 40‑pin industrial front connector
Typical Applications
- Control of solenoid valves, pneumatic / hydraulic actuators
- Switching relays, contactors, and small motors
- Indicator lamps and signaling devices
- Conveyor systems, packaging and textile machinery
- Machine tools and automated assembly lines
- Material handling and factory automation systems
- General industrial DC load switching
6ES7322-1BL00-0AA0 Important Parameters
| Parameter |
Specification |
| Part Number |
6ES7322-1BL00-0AA0 |
| Brand |
Siemens |
| Series |
SIMATIC S7-300, SM 322 |
| Module Type |
Digital Output Module |
| Number of Outputs |
32 channels |
| Output Type |
Transistor, sink (NPN) |
| Load Voltage |
DC 24 V (20.4 … 28.8 V) |
| Current per Point |
0.5 A |
| Current per Common |
8 A |
| Output Voltage Drop |
≤ 0.5 V at 0.5 A |
| Isolation |
Optocoupler isolation (channels ↔ backplane) |
| Switching Frequency |
Max. 100 Hz |
| Backplane Bus Current |
DC 5 V, max. 120 mA |
| Power Dissipation |
Approx. 5.5 W |
| Connector |
40-pin front connector |
| Mounting |
35 mm DIN rail |
| Operating Temperature |
0 … +60 °C (vertical); 0 … +55 °C (horizontal) |
| Storage Temperature |
-40 … +85 °C |
| Humidity |
5 … 95 % RH (non‑condensing) |
| Dimensions (W×H×D) |
40 × 125 × 120 mm |
| Weight |
Approx. 0.35 kg |
| Certifications |
CE, UL, cUL, CSA, RoHS |
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