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Product Overview
This digital output module provides eight isolated channels for the SIMATIC S7-300 system. Each channel delivers 2 A of continuous current at 24 V DC for demanding loads. The module measures 40 mm in width, 125 mm in height, and 120 mm in depth. It weighs approximately 200 grams for standard DIN rail mounting. You can install this module in any free slot of the S7-300 rack. The front connector uses a screw-type terminal block for reliable field wiring.
Each output channel includes a green LED for immediate status indication. The module provides electrical isolation between the load circuits and the backplane bus. It also features short-circuit protection with automatic restart after fault clearance. You can drive solenoid valves, contactors, and indicator lamps directly. The module supports a switching frequency of up to 100 Hz with resistive loads.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Digital Output Module |
| Model | 6ES7322-1BF00-0AA0 |
| Output Channels | 8 (isolated groups) |
| Output Voltage | 24 V DC (nominal) |
| Current per Channel | 2 A (continuous) |
| Total Current | 8 A (maximum per module) |
| Switching Frequency | Max. 100 Hz (resistive load) |
| Short-Circuit Protection | Yes (electronic with auto-restart) |
| Electrical Isolation | Yes (500 V DC) |
| Status Indication | LED per channel (green) |
| Supply Voltage | 24 V DC |
| Power Loss | Typ. 2.8 W |
| Dimensions (W x H x D) | 40 mm x 125 mm x 120 mm |
| Weight | Approx. 200 g |
| Mounting | DIN rail (EN 60715) |
| Operating Temperature | 0 °C to 60 °C |
| Terminal Type | Screw-type (removable) |
Key Features and Benefits
This module delivers high current capacity for driving large solenoid valves and contactors. Its isolated output groups protect the system from field-side faults. The auto-restart function minimizes downtime after short-circuit events. You can monitor each channel’s state through the front LEDs at a glance. The removable terminal block simplifies wiring and module replacement.
Installation and Configuration
You insert the module into the S7-300 rack and tighten the retaining screws. Connect the 24 V DC supply and field devices to the terminal block. Assign output addresses using the STEP 7 hardware configuration tool. Define the module’s parameters through the device configuration view. Download the configuration to the CPU for activation. The module will operate according to your settings after power-on.
Typical Applications
Packaging machines use this module for controlling pneumatic valves and cylinders. Conveyor systems rely on it for driving diverter gates and brakes. The module also serves in automotive and general manufacturing applications.