> For the complete documentation index, see [llms.txt](https://grid-exchange-fabric.gitbook.io/gxf/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://grid-exchange-fabric.gitbook.io/gxf/protocols/iec61850/flexovl_540_171101_2.md).

# FlexOVL\_540\_171101\_2

Contract for [FlexOVL\_540\_171101\_2](/gxf/protocols/iec61850/flexovl_540_171101_2/flexovl_540_171101_2_out.icd.md) The contract specifies the messages which can be exchanged with a LMD.

## Messages

The messages below are part of OSGP and implemented in the IEC61850 protocol adapter and supported by the FlexOVL\_540\_171101\_2 device firmware.

* [**GetStatusRequest**](/gxf/protocols/iec61850/flexovl_540_171101_2/getstatus.md) (from platform to device) is a request which queries a device for the current status of all its digital inputs.
* [**GetStatusResponse**](/gxf/protocols/iec61850/flexovl_540_171101_2/getstatus.md) (from device to platform) is a response which returns the result of the GetStatusRequest and, if 'result = OK', returns the current status for all of the digital inputs.
* [**EventNotificationRequest**](/gxf/protocols/iec61850/flexovl_540_171101_2/eventnotification.md) (from device to platform) is a request that pushes an event notification from a device to the platform.

No other message types are supported by this device.