Quantum Data 801GF Specifications download pdf (Page 6)

Page 6 Model 801GC-ISA & 801GF-ISA Programming Manual

‘Access the DLL routine to open the port

Answer = port_open(PortSpec, comm_data)

PortConnect_Error (Answer)

If Answer = PORT_OK then

Connected = True

Else

Connected = False

End If

End Sub

Port Command

Declare Function port_command Lib “hia.dll” (Comm_Data as COMM_DATA_TYPE, ByVal cmd as String, ByVal

response as String) as Integer

Port command is designed to download any of the commands or queries used to communicate with the ISA

generator. This function will only work when the ISA port has been opened otherwise the function will return an

error message. To download a command, place the command into the cmd string and then call the port_command

external function.

cmd = “FMTL VGM_M3”

Answer = port_command (comm_data, cmd, response)

‘Analyze the error if one occurred

If Answer <> 0 then

PortConnect_Error (Answer)

End If

Port Query

Downloading a query is very similar to downloading a command, however a response from the ISA generator will be

returned in the response string. It is important to remember the size of the response string must be declared before

the external function port_command is called. (i.e. Global response as string * 100)

cmd = “*IDN?” ‘This query will return the model and firmware revision

Answer = port_command (comm_data, cmd, response)

‘Analyze the error if one occurred

If Answer <> 0 then

PortConnect_Error (Answer)

Else

‘The response string contains the data returned from the generator

pnlStatus.Caption = response

End If

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Quantum Data 801GF Specifications Page 6