This function is for use by the MPI application at
each medical center to send HL7 messages over a direct connection to the MPI.
The communication protocol that this function utilizes is proprietary.
Therefore, this function is not recommended for use by any other application.
Usage S returnval=$$EN^HLCSAC(loglink,input,output)
If the function is fully successful, the return value will be 0(zero).
Otherwise, a non-zero followed by an error message text will be returned in a
format similar to "-1^error message".
Logical Link Name or IEN
A clossed root representing an array containing
message segments to be sent
A closed root representing an array containing
message segments returned