|=||Standard Excel formula prefix|
|GPS||Add-in file (GPS.XLA)|
|PT||Function input parameters, pressure and temperature in this example|
|H||Function output parameter, enthalpy in this example|
|(2400,A2)||The function input parameters are either tag names, values, cell references, or a combination. In this example, the pressure value is passed along|
|with the temperature value located in cell A2|
Additionally, GPSteam Add-in for RTXHDB connects the Steam Table functions to the RTX Historical Database through the RTXHDB Applications - Expression and Functions facility, provided with the RTXHDB system. For example, in the DDE Server for RTXHDB, the list of functions will include those provided by GPSteam Add-in for RTXHDB. All of these functions can be incorporated along with the other internal functions provided by the RTXHDB Applications - Expression and Functions handler.
Real Time eXecutives - RTX, Inc., 686 South Street, Po Box 160, Wrentham, MA 02093. Tel: 508-384-7717; Fax: 508-384-9074.