Place of Origin:
GERMANY
Brand Name:
SIEMENS
Model Number:
6ES7338-4BC01-0AB0
SIMATIC S7-300, Signal module for 3 SSI encoders for reading in the position value with 2 FREEZE inputs, 1x 20-pole Supports isochronous mode.
The 6ES7338-4BC01-0AB0 is a SM 338 position input module from Siemens' SIMATIC S7-300 series, designed for precise position detection in industrial automation. This module supports three SSI (Synchronous Serial Interface) encoders, providing 13-bit resolution positioning data with two FREEZE input terminals for value locking. It integrates clock synchronization and is housed in a compact form factor (40 mm width, 125 mm height). The module connects via a 20-pin front connector and is suitable for applications requiring dynamic position feedback, such as CNC machines, automated assembly lines, and industrial robots.
| Product Series | SIMATIC S7-300 SM 338 Position Input Module |
|---|---|
| Encoder Support | 3x SSI encoders, 13-bit resolution |
| Input Ranges | Voltage: 0-10 V (selectable) Current: 4-20 mA (selectable) |
| Input Delay | 300 μs (at nominal voltage) |
| Power Supply | 24 V DC (L+: 100 mA; Backplane: 160 mA) |
| Sensor Power | 24 V DC, 900 mA output |
| Power Loss | 3 W (typical) |
| Connection | 20-pin front connector, shielded encoder wires (max. 320 m @ 125 kHz) |
| Diagnostic Features | Alarm reporting, non-isolated |
| Configuration | STEP 7 software for parameterization (encoder type, data format, transmission rate) |
| Environmental | -20°C to 60°C operating temperature, RoHS compliant |
| Physical Dimensions | 40 mm (W) × 125 mm (H) × 120 mm (D), 235 g weight |
| Application Areas | High-precision position control in machinery, robotics, and process automation |
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