AN-X4-ABRIO-SCAN Page
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Offset
Bit
Description
12
BTW.DN, block transfer write done (manual mode only)
13-15
Reserved
2-n
0-15
BTR Data (64 INTs max)
Offset 0 bits 0-7 contain a counter that increments each time a block transfer read executes
successfully on the remote I/O network. Based on the configuration of the AN-X4-ABRIO-SCAN and
its RPI, the controller may see this value increment by more than 1 count per program scan.
The AN-X4-ABRIO-SCAN sets the BTR error bit, offset 0 bit 11, when an error occurs executing a
block transfer read. It clears the bit when the block transfer read enable bit bit is reset in the
coresponding BT Control Write Structure.
When a block transfer read error occurs, offset 0 bits 8-10 contain an error code (see table below).
When you execute a block transfer read in manual mode, the AN-X4-ABRIO-SCAN sets the done bit,
offset 0 bit 12, to indicate that the block transfer read executed successfully. It resets the done bit
when the coresponding BTR.EN bit is reset in the BT write control file.
Offset 1 bits 0-7 contain a counter that increments each time a block transfer write executes
successfully on the RIO network. Based on the configuration of the AN-X4-ABRIO-SCAN and its
RPI, the controller may see this value increment by more than 1 count per program scan.
The AN-X4-ABRIO-SCAN sets the BTW error bit, offset 1 bit 11, when an error occurs executing a
block transfer write. It clears the bit when the block transfer write enable bit is reset in the
coresponding BT Control Write Structure.
When a block transfer write error occurs, offset 1 bits 8-10 contain an error code (see table below).
When you execute a block transfer write in manual mode, the AN-X4-ABRIO-SCAN sets the done
bit, offset 1 bit 12, to indicate that the block transfer write executed successfully. It resets the bit when
the coresponding BTW.EN bit is reset in the BT write control file.
Word offsets 2-n contain the read data returned by the block transfer module.
BT Write Structure
Offset
Bit
Description
0
0-5
BTR Length (1-63 word, 0 for 64)
6-7
Reserved
8
BTR.EN, block transfer read enable (manual mode only)
9
BTR.CONT (manual mode only)
BT Inhibit (Automatic modes – inhibits config BTW, data BTW and data BTR)
10-15
Reserved
1
0-5
BTW Length (1-63 word, 0 for 64)
6-7
Reserved
8
BTW.EN, block transfer write enable (manual mode only)
