1747-6.22, Backup Scanner User Manual

RIO Block Transfer 7-131
Rung 2:3
When a BTR successfully completes, buffer the BTR data and unlatch the BTR enable bit. Also, unlatch the
BTR pending bit and latch the bit that continues checking the BTR status until the SN turns off the done bit.
|
|
| VIRTUAL
| BTR DONE
| BIT BTR DATA
| B3 +COP---------------+
|----] [----------------------------------------------+-+COPY FILE +-+
| 13 | |Source #M1:1.110| |
| | |Dest #N7:10| |
| | |Length 64| |
| | +------------------+ |
| | |
| | |
| | |
| | BTR |
| | PENDING |
| | B3 |
| +----(U)---------------+
| | 80 |
| | |
| | |
| | VIRTUAL |
| | BTR ENABLE |
| | BIT |
| | B3 |
| +----(U)---------------+
| | 1615 |
| | |
| | |
| | |
| | CHECK BTR |
| | STATUS |
| | B3 |
| +----(L)---------------+
| 81
Rung 2:4
When a BTR unsuccessfully completes, buffer the error code and unlatch the BTR enable bit and the BTR
pending bit. Also, latch the check BTR status bit in order to continue reading the status information from the
scanner until it turns the error bit off, completing the handshake process.
|
|
| VIRTUAL
| BT ERROR BTR ERROR
| BIT CODE
| B3 +MOV---------------+
|----] [----------------------------------------------+-+MOVE +-+
| 12 | |Source M1:1.103| |
| | | *| |
| | |Dest N7:9| |
| | | 0| |
| | +------------------+ |
| | |
| | |
| | |
| | BTR |
| | PENDING |
| | B3 |
| +----(U)---------------+
| | 80 |
| | |
| | |
| | VIRTUAL |
| | BTR ENABLE |
| | BIT |
| | B3 |
| +----(U)---------------+
| | 1615 |
| | |
| | |
| | |
| | CHECK BTR |
| | STATUS |
| | B3 |
| +----(L)---------------+
| 81
Publication 1747-6.22