Instruction Manual

Chapter 3
Planning an Application Program
3-2
Function calls let your application program communicate with devices on
the DH-485 network:
This Function Call Lets Y ou
Open_StdDrv() initialize the 6001-F2E Standard Driver. Use this function call in
every program you write.
Appl_StdDrv() use predefined support routines (Application Library) in
applications that use the basic command set. See page 4-2 for a
list of these commands.
Send_StdDrv() format commands not provided in the Application Library . It lets
you format message packets when communicating with
token-passing or slave-only devices.
Get_ErrMsg() retrieve an ASCII string that describes a network message error .
Close_StdDrv() end communication. Use this function call in every program you
write.
Important: When you write your program, you must always start with
Open_StdDrv() and end with Close_StdDrv(). The middle of your
program will consist of Appl_StdDrv() or Send_StdDrv() or a
combination of both. Use the Send_StdDrv() function call to format
commands not supported by the Application Library routines. (See table
4.B on page 4-2 for a list of these commands.)
Your disk contains example programs (F2EDIAG.C and F2ESLC.C) you
can use to test communication on the DH-485 network. (See appendix A
for additional program examples.)
The next chapter for the format and parameters for each function call.
Keep the following considerations in mind when you write your
application program:
Use Borland Turbo C (v2.01 or later) or Microsoft C (v5.0 or later)
Whether you use only Appl_StdDrv() routines or Send_StdDrv()
routines, you must always link the following:
If you are using this Link these files
Borland Turbo C (v2.01) L_TCKR.LIB
L_TCAPP.LIB
Microsoft C (v5.0) L_MSKR.LIB
L_MSAPP.LIB
Overview of the Function Calls
Programming Considerations