One of these:
| PT_FMT_ASCII | Constructs a humanly readable ASCII string (the default). |
| PT_FMT_BINARY | Encodes data as a raw binary representation, efficient for parsing. |
| PT_FMT_HEX | Encodes data as ASCII encoded hex. This is not a valuable format since it is more difficult to parse and less space efficient than binary, and it is more difficult for humans to read than regular ASCII. |
This function sets a global variable that determines whether DH_WritePoint will attempt to use binary or ASCII format in transmissions from a client to the Cascade DataHub.