6ES7323-1BL00-0AA0 Siemens SIMATIC S7-300 Digital module SM323 16DI 16DO 24VDC 0.5A

6ES7323-1BL00-0AA0 Siemens SIMATIC S7-300 Digital module SM323 16DI 16DO 24VDC 0.5A

1.Overview of the 6ES7323-1BL00-0AA0 Siemens

The Siemens 6ES7323-1BL00-0AA0 is an SM 323-type digital module that utilizes optoelectronic isolation technology and provides 16 digital inputs and 16 digital outputs. Powered by a 24V DC power supply, it is primarily used to connect and control various field switching devices, such as sensors, push buttons, contactors, small relays, indicator lights, and solenoid valves. This module is a key component in Siemens S7-300 PLC systems and is suitable for automation projects requiring centralized acquisition and control of large numbers of switching signals.

2.Core Features:

Product Series/Model: SIMATIC S7-300 / SM 323, 6ES7323-1BL00-0AA0
Number of I/O Channels: 16 Inputs (DI) + 16 Outputs (DO)
Input Voltage: 24 V DC (rated value), "1" Signal Range: 13 - 30 V
Output Voltage: 24 V DC, "1" Signal Minimum: L+ (-0.8 V)
Output Current: 0.5 A/Channel
Total Group Output Current: 4 A when mounted horizontally at 40°C
Supply Voltage: 24 V DC (Permitted Range: 20.4 V - 28.8 V DC)
Power Dissipation: Typical: 6.5 W
Backplane Bus Current: 5 V DC, Maximum: 80 mA
Electrical Isolation: Between Channels and Backplane Bus: Optocoupler
Connection Method: Requires 40-pin front connector
Dimensions (W x H x D): 40 x 125 x 120 mm
Weight: Approx. 305 g

2.Isolation and Protection
Channel-to-backplane bus: 500 V AC optical isolation
Channel-to-channel: 16 DIs isolated as a group, 16 DOs isolated in groups of 8 channels
Insulation test voltage: 500 V DC
Proof against short circuits, overloads, and reverse polarity (L+)

3.Software Features
Configurable input filter time and replacement value for each channel
Outputs support hold, reset, or replacement value settings
No range cards required, addresses are automatically mapped by slot
Hot-swappable (requires active backplane)

High Density and Flexibility: This module provides 32 I/O points, helping save space in control cabinets. The input channels can connect to standard switches and two-wire proximity switches, while the output channels can directly drive a variety of loads.

Clear Status Indication: Each input and output channel features a green LED status indicator, allowing for quick viewing of signal status during on-site commissioning and troubleshooting.

Industrial-Grade Design: The module's compact and rugged design makes it suitable for use in complex industrial environments. Its input latency ranges from 1.2 ms to 4.8 ms, and its output latency ranges from 100 µs (0 to 1) to 500 µs (1 to 0), meeting the needs of most industrial applications.

Easy Installation and Maintenance: This module can be installed in an S7-300 rack without slot restrictions; its output addresses are determined by the slot. When used with active bus modules in the ET 200M distributed I/O system, it supports hot-swappable functionality, allowing module replacement without powering down, greatly facilitating maintenance and reducing system downtime.

3.Product details pictures

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