Issue
In an I/A Series R2 (Niagara) UNC station, not able to link to the output of a SIM block,
receive error "java.lang.NullPointerException". The SIM block is from a SIM-CCN, TYPE = 44.
Environment
I/A Series R2 UNC with the GCM driver
Network 8000 SIM-CCN, containing SIM blocks with TYPE = 44
Cause
The SIM-CCN, containing SIM blocks with TYPE = 44, can be highly "customized", so the inputs and /or outputs of the block may be "data species" that the GCM driver in the UNC does not recognize.
The GCM driver has not been tested with any of the SIMs (SIM-CCN, SIM-MTECH, SIM-TRANE, SIM-YORK, LNC-100).
Resolution
1. Try using appropriate Shadow Objects of type GcmAvParam, GcmDateParam, GcmDvParam, GcmEnumParam, GcmIntParam, GcmStringParam, or GcmTimeParam.
2. Try adding APT or DPT blocks to the SIM-CCN database to correctly interpret the SIM block outputs for the GCM driver in the UNC.