The LINK function is supported.
| Operand | Support | 
|---|---|
| CHANNEL (data-value) | Validated | 
| COMMAREA (data-area) | Full | 
| DATALENGTH (data-value) | Validated | 
| INPUTMSG (data-area) | Full | 
| INPUTMSGLEN (data-value) | Full | 
| LENGTH (data-value) | Full | 
| PROGRAM (data-value) | Full | 
| SYNCONRETURN | Validated | 
| SYSID (data-value) | Validated | 
| TRANSID (data-value) | Validated |