Controller S7-300 DQ Output

S7-300 Digital Output Module (DO Module)

The digital output module is used to convert the digital signal processed by the PLC into a switching signal to control external devices (such as relays, contactors, indicators, etc.).

Main features:

1. Signal type support:

o Support DC (DC) and AC (AC) signal output, common voltage levels are 24V DC, 120V AC, 230V AC, etc.

o Supports transistor output (for DC) and relay output (for DC/AC).

2. Number of channels:

o modules typically offer 8, 16, 32, or 64 digital output channels, depending on the model.

3. Output current:

The output current per channel is usually between 0.5A and 2A, depending on the module model.

4. Electrical isolation:

o Most modules have electrical isolation to prevent external interference from affecting the signal output.

5. Diagnostic function:

o Provides diagnostic functions, such as short-circuit detection, overload protection, etc., to facilitate troubleshooting.

6. Modular design:

o Modular structure is easy to expand and maintain, and users can flexibly configure according to requirements.