Accept a Single Byte

To accept a single byte of data on the GPIB, first click the Enable Accept Byte button in the Bus Monitor window. Then click the Accept Byte button in the Bus Monitor window. This action automatically toggles the NRFD and NDAC lines in the correct IEEE 488 handshaking sequence to accept a single byte. If you disable the Accept Byte feature, you can control the NRFD and NDAC lines manually using the binary switches in the Bus Monitor window.

If you try to accept a byte when no GPIB device is currently trying to source a byte (DAV unasserted), toggling the handshake lines or clicking Accept Byte has no effect.