The Allen-Bradley SmartGuard 600, available from NHP Electrical Engineering Products , is designed for SIL 3 applications that require a degree of complex logic.
The base unit includes the CPU, 8 safety outputs, 16 safety inputs, and an embedded DeviceNet communication port. Using this DeviceNet port the SmartGuard can control up to 31 safety distributed I/O nodes, in addition to communicating to standard PLCs and HMIs over a DeviceNet network. The SmartGuard is programmed using the RSNetworx software via a USB interface.
The main advantage of the SmartGuard is the ease of use, which will have users of all experience up and running quicker than expected. Necessary information about error codes and node address are displayed on the alphanumeric display, while all input/output status is displayed by LED indication. Communication parameters are set by rotary switches and dipswitches on the front of the unit.
Programming of the SmartGuard is performed in an editing environment that is inside RSNetWorx. Programming is achieved by simply dragging and dropping the pre-certified safety blocks into the program. All the common safety instructions have been TUV certified and include functions such as E-stop button and light curtains.
SmartGuard can be used in a wide range of general purpose applications including:
- Automotive machinery and process lines
- Packaging
- Food and beverage
- Material handling