Feature Request: Expose Axis.NetworkIndexGet() in the gRPC API (needed for DS402 drive-based homing)

We’re using the RapidCodeRemote gRPC api and implementing DS402 drive-based homing following your documented approach with NetworkOutputOverride:

In the C# example, the control word PDO output index is retrieved via:

int axisCtrlWordIdx =(int)axis.NetworkIndexGet(RSINetworkIndexType.NetworkIndexTypeCONTROL_WORD_INDEX);

The RSINetworkIndexType enum is already defined in rsienums.proto (values 0-15 including NetworkIndexTypeCONTROL_WORD_INDEX = 9 and NetworkIndexTypeSTATUS_WORD_INDEX = 1), but there is no gRPC action or info field that exposes the actual resolved index values.

The AxisInfo message has network_index_invalid in its Constants (the sentinel value for invalid indexes), which suggests this was planned but not yet implemented.

Could you add the resolved network indexes to AxisInfo? For example:

 message AxisInfo {
   // ... existing fields (index, addresses, node_info, constants,
   //     motion_supervisor_index, drive_index) ...

   // Resolved PDO network indexes for this axis.
   // Maps RSINetworkIndexType enum values to global network output/input indexes.
   // Equivalent to Axis.NetworkIndexGet() in the C#/C++ API.
   map<int32, int32> network_indexes = 7;
 }

Or alternatively, add a network_index_get action to AxisAction:

 message AxisAction {
   // ... existing actions ...
   optional NetworkIndexGet network_index_get = 21;

   message NetworkIndexGet {
     RSINetworkIndexType type = 1;
     int32 index = 2;  // populated in response
   }
 }

Use case: DS402 drive-based homing requires NetworkOutputOverride on the control word PDO output. Without NetworkIndexGet() in the gRPC API, the only workaround is querying
NetworkInfo.pdo_outputs and matching by PDO name string, which is fragile across different ENI configurations and drive types.

We need the control word index (NetworkIndexTypeCONTROL_WORD_INDEX) and status word index (NetworkIndexTypeSTATUS_WORD_INDEX) at minimum, but exposing all RSINetworkIndexType values would be most useful.

Thanks!

Hey @edco,

Request received and task added to our TODO list. I’ll update you when it is available.

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