A-38
A4
C.13 gpib_address
The gpib_address procedure is used to read/modify the Edevice GPIB bus
address.
struct Gpib_Addr_Parms {
unsigned int action;
unsigned int address;
};
struct Gpib_Addr_Resp {
unsigned int error;
unsigned
int
address;
};
Gpib_Addr_Resp gpib_address (Gpib_Addr_Parms) = 13;
The action value determines whether the client wishes to execute a read of the
current setting, or a modification of the current value.
action = 0 = read of current value
action = 1 = modify current value
If the action value is other than 0 or 1, then an error value of 5 is returned.
If the RPC message is of insufficient length to satisfy the required length, an
error value of 1 is returned.
The address must be within the range of 0 and 30. An error of 5 is returned and
the current GPIB address is unchanged if address is determined to be invalid.
The returned Gpib_Addr_Resp structure will always contain the current Edevice
GPIB bus address, irrespective of the error value.
error Meaning
0
No error
1
Syntax error
5
Parameter error
Содержание 9099
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Страница 161: ...A 49 A4 Refer to the ErrorLogger utility for the error value definitions Error Meaning 0 No error ...