Kibsnd - Keithley 4200A-SCS Reference Manual

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Section 13: LPT library function reference

kibsnd

This command sends a device-dependent command to an instrument connected to the GPIB interface.

int kibsnd(int pri_addr, int sec_addr, unsigned int timeout, unsigned int send_len,

char *send_buff);

The kibsnd command sends a buffer out through the GPIB interface by doing the following:

1. Assert attention (ATN).

2. Send device LISTEN address.

3. Send secondary address (if not -1).

4. Send my TALK address.

5. De-assert ATN.

6. Send the send_buff parameter with end-or-identify (EOI) asserted with the last byte.

7. Assert ATN.

8. Send UNTalk (UNT).

9. Send UNListen (UNL).

10. De-assert ATN.

The primary address of the instrument (0 to 30; the controller uses address 31)

The secondary address of the instrument (1 to 30; if the instrument device does not

support secondary addressing, this parameter must be -1)

The GPIB timeout for the transfer in 100 ms units (for example,

timeout = 40 = 4.0 s)

The number of bytes to send over the GPIB interface

The physical byte buffer containing the data to send over the bus

Model 4200A-SCS Parameter Analyzer Reference Manual

4200A-901-01 Rev. C / February 2017