6ES7323-1BL00-0AA0 S7-300 SM323 16DI/16DO Module

6ES7323-1BL00-0AA0 – SIMATIC S7-300 Digital Module SM 323

Optically isolated, 16 DI / 16 DO, 24V DC, 0.5A per channel. Group current 4A (horizontal, ≤40°C). 1×40‑pin front connector. Compact and robust for S7‑300 systems.

Oiltech Controls’s Quick Take

• Ideal for: Standard digital I/O tasks in S7‑300 – e.g., conveyor control, valve actuation, status monitoring.
• Best paired with: S7‑300 CPUs like 6ES7315‑2AH14, 6ES7317‑2AJ10.
• Key feature: Galvanic isolation in groups (16 DI / 8 DO) ensures reliable signal integrity.
• Our experience: Reliable workhorse – widely used in retrofit and new projects.

Technical Specifications – Reference Card

• Brand: Siemens | Model: 6ES7323-1BL00-0AA0 | Series: SIMATIC S7-300
• Digital inputs: 16 (type 1 per IEC 61131) – 24V DC, 7mA typ.
• Digital outputs: 16 (transistor) – 24V DC, 0.5A rated, short‑circuit protected.
• Input delay: 1.2 .. 4.8 ms (programmable).
• Output delay (resistive): 100 µs (0→1), 500 µs (1→0).
• Switching frequency: 100 Hz (resistive / lamp), 0.5 Hz (inductive).
• Total current (per group): 4A (≤40°C) / 3A (≤60°C) horizontal.
• Load range: 48 Ω .. 4 kΩ (output).
• Power loss: typ. 6.5 W.
• Supply: 24V DC (20.4..28.8V), max 80 mA.

Installation & Wiring

• Mounting: S7-300 rail – width 40 mm, height 125 mm, depth 120 mm.
• Front connector: 1x 40‑pin (required, not included).
• Cable length (shielded): up to 1000 m (DI/DO).
• Unshielded: up to 600 m.
• 2‑wire sensor support: max. quiescent current 1.5 mA.

Diagnostics & Status

• LED indication: Green for each DI and DO status.
• No diagnostic alarms – basic module for standard applications.
• Short‑circuit protection on outputs (auto‑restart).

Environmental & Certifications

• Operating temp: 0..60 °C (horizontal), derating above 40°C (8 inputs max at 60°C).
• Protection class: IP20 – suitable for control cabinet.
• CE, UL, CSA (standard for Siemens S7‑300).

Typical Applications

• Digital control of solenoids, contactors, and indicator lamps.
• PLC I/O expansion for packaging, material handling, and simple automation.
• Retrofit or replacement in existing S7‑300 systems.

5 Professional FAQ – Experience & Selection Advice

• Q: Can this module drive relays directly?
• A: Yes, with 0.5A per channel – check coil current. For larger loads, use interposing relays.
• Q: What happens if I overload a group?
• A: The module limits current; ensure group total stays below 4A (≤40°C) or 3A (≤60°C).
• Q: Can I mix different input voltages?
• A: No, all inputs are 24V DC. Use external converters for other levels.
• Q: Is the module hot‑swappable?
• A: Not officially – we recommend powering down the rack before replacement.
• Q: Which S7‑300 CPU works best with SM 323?
• A: Any CPU with sufficient process image – e.g., 314, 315‑2, 317‑2. We can advise.

Why Buy From Oiltech Controls?

• 15+ years in industrial automation spares.
• Global shipping – FedEx, UPS, DHL (24‑28h dispatch).
• Tested surplus / refurbished with full function check.
• 12‑month warranty and technical verification before shipment.
• Expert support for obsolete control systems.

Shipping: Worldwide via FedEx, UPS or DHL. Tracking provided. 24‑28 hours handling.

Packaging: ESD‑safe anti‑static packaging.

Warranty: 12 months against defects. Conditions apply.

Contact:
info@oiltechcontrols.com |
+86 158 8020 0923 (WhatsApp)

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