Siemens 6ES7322-1BL00-0AA0 SIMATIC S7-300 Digital Output Module
Manufacturer: Siemens
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Part Number: 6ES7322-1BL00-0AA0
Condition：New with Original Package
Product Type: Communication Processors
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Siemens 6ES7322-1BL00-0AA0 SIMATIC S7-300 Digital Output Module SM 322
The Siemens 6ES7322-1BL00-0AA0 is a high-density 32-channel digital output module for the SIMATIC S7-300 PLC system and ET 200M distributed I/O stations. Designed to switch DC field loads, it supplies 24 V DC at up to 0.5 A per channel using optocoupler-isolated transistor outputs. The module organizes its 32 channels into four isolated groups of eight outputs and requires a single 40-pin front connector for field wiring.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 6ES7322-1BL00-0AA0 |
| Brand | Siemens |
| Product Series | SIMATIC S7-300 |
| Product Type | Digital Output Module |
| Number of Digital Outputs | 32 |
| Output Type | Transistor (sinking/sourcing per 24 V DC load requirements) |
| Rated Output Voltage | 24 V DC |
| Permissible Voltage Range | 20.4 to 28.8 V DC |
| Rated Output Current | 0.5 A per channel |
| Maximum Output Current | 0.6 A per channel |
| Maximum Current per Group | 4 A (across 8 channels) |
| Maximum Total Current | 16 A per module |
| Number of Output Groups | 4 |
| Short-Circuit Protection | Integrated electronic protection (typical response threshold 1 A) |
| Inductive Voltage Limitation | Limited to L+ (-53 V) |
| Galvanic Isolation | Optocoupler (500 V DC test voltage between groups and backplane) |
| Switching Frequency | 100 Hz (resistive load), 0.5 Hz (inductive load), 10 Hz (lamp load) |
| Maximum Lamp Load | 5 W |
| Output Switching Delay | 100 us (0 to 1), 500 us (1 to 0) |
| Backplane Bus Current | 110 mA at 5 V DC |
| Typical Power Dissipation | 6.6 W |
| Front Connector | 1x 40-pin |
| Maximum Cable Length | 1000 m (shielded), 600 m (unshielded) |
| Protection Class | IP20 |
| Dimensions (W x H x D) | 40 mm x 125 mm x 120 mm |
| Net Weight | 0.26 kg |
Channel Load Capabilities and Signal Timing
Each of the 32 transistor channels switches up to 0.5 A at 24 V DC under continuous operation. The output signal transitions with a maximum turn-on delay of 100 us and a turn-off delay of 500 us.
Verification: Verify that total simultaneous channel loads do not exceed the 4 A limits for each 8-channel group or 16 A overall for the entire module.
Inductive load switching is clamped internally to L+ (-53 V) to protect the solid-state switching circuitry against demagnetization voltage spikes. Maximum switching rates are rated at 100 Hz for resistive loads, 0.5 Hz for inductive loads, and 10 Hz for lamp loads up to 5 W.
Group Isolation and Cabinet Installation
Outputs are arranged in four galvanically isolated groups, each comprising eight channels. Optocouplers provide isolation rated for a 500 V DC test voltage between channel groups and the backplane bus.
Verification: Ensure a compatible 40-pin front connector is selected and properly wired to supply external 24 V DC load voltage to all four channel groups.
The compact 40 mm module snaps directly onto standard S7-300 mounting rails. Backplane logic current draw is limited to 110 mA at 5 V DC, while internal thermal power loss stays at a typical 6.6 W inside IP20 enclosures.
Frequently Asked Questions
Q: Does the 6ES7322-1BL00-0AA0 output module come with a front connector? A: No, it requires a separate 40-pin removable front connector block to terminate the field wiring.
Q: How is short-circuit protection handled on individual output channels? A: The module incorporates electronic short-circuit protection for each channel, with a typical trip threshold around 1 A.
Q: What is the maximum permitted load current for a single output group? A: Each 8-channel group supports up to 4 A total current, subject to an overall module limit of 16 A.