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The Siemens 6ES7961-1AA00-0AC0 is an interface submodule for the SIMATIC M7-400 system. This compact unit provides essential digital I/O capabilities for your automation setup. It connects directly to M7-400 programmable modules or M7-300/400 expansion modules. The submodule receives its supply voltage from these host modules. Consequently, it offers a space-saving solution for expanding your system’s I/O capacity.
Technical Specifications
This interface submodule features a slim, lightweight design suitable for DIN rail mounting. It measures 18.2 mm in width, 67 mm in height, and 97 mm in depth. The Siemens 6ES7961-1AA00-0AC0 weighs just 0.065 kg. This low weight simplifies installation and reduces mechanical stress on the rack. The module carries a product ID of 02H for its submodule type.
Key Technical Data
| Parameter | Specification |
|---|---|
| Product Type | IF 961-DIO Interface Submodule |
| Compatibility | SIMATIC M7-400 System |
| Submodule ID | 02H |
| Number of Digital Inputs | 8 |
| Number of Digital Outputs | 8 |
| Power Supply | From M7 host module |
| Current Consumption (M7-300) | 0.03 A (referenced to 24 V) |
| Current Consumption (M7-400) | 0.085 A (referenced to 5 V) |
| Power Loss | 2.4 W |
| Dimensions (W x H x D) | 18.2 x 67 x 97 mm |
| Weight | 0.065 kg |
| Galvanic Isolation | Yes (optocoupler) |
Digital I/O Capabilities
This submodule offers 8 digital inputs and 8 digital outputs for reliable signal interfacing. The design incorporates galvanic isolation via optocouplers. This isolation protects the central system from electrical noise. The nominal voltage for operation is 24 V DC, with a permissible range of 20.4 V to 28.8 V. The unit also includes reverse polarity protection through a fuse. Therefore, the Siemens 6ES7961-1AA00-0AC0 ensures stable operation even in demanding industrial environments.
Installation and Connectivity
Installing this interface submodule is a straightforward process. It plugs directly into the M7-400 rack. The module uses plug-in terminals for secure wiring connections. For cabling, it supports unshielded cables up to 200 meters with a 750 µs delay, or 600 meters with a 3 ms delay. Shielded cables extend this range up to 1000 meters. This flexibility allows you to position your I/O devices optimally within your facility. The module’s IP20 protection class ensures protection against solid objects larger than 12.5 mm.