Toshiba V Series Manual page 72

Chapter 4 Operating Procedures for the DN311 (Software)
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52
(4) Bit strobe output data area (02F4H to 02F7H: 4 words)
This area stores data that the DN311 outputs to slave devices in bit strobe mode.
The S controller ladder program writes output data in this area. The transmitting data
in bit strobe mode is fixed at 8 bytes (64 bits).
The relationship between the bits in this area and slave device node addresses is
shown below.
Table 4-1 Bit Strobe Output Data Area Configuration
F E D C
02F4H 15 14 13 12
02F5H 31 30 29 28
02F6H 47 46 45 44
02F7H 63 62 61 60
(5) Polling output data area (017AH to 02F3H: 378 words)
This area stores data that the DN311 outputs to slave devices in polling mode.
The S controller ladder program writes output data in this area. The area has a size
of 378 words (6048 bits), so unless the size of data the DN311 sends to slave devices
doesn't exceed the area capacity, up to 63 slave devices can be connected to one
DN311.
Allocation of output data to slave devices to this area is explained in 4.2.3 Allocating
slave device data to the input/output data area.
(6) Polling/bit strobe input data area (0000H to 0179H: 378 words)
This area stores data collected by the DN311 from the slave devices in polling mode
and bit strobe mode.
The S controller ladder program reads data from this area. The area has a size of
378 words (6048 bits), so unless the size of data that slave devices send to the
DN311 doesn't exceed the area capacity, up to 63 slave devices can be connected to
one DN311.
Allocation of input data from slave devices to this area is explained in 4.2.3 Allocating
slave device data to the input/output data area.
Figure 4-8 shows a sketch of the input/output data areas.
S controller
Input data
register area
MWRITE
instruction
Output area
register area
Figure 4-8 Sketch of Input/Output Data Areas
B A 9 8 7
11 10 9 8 7
27 26 25 24 23
43 42 41 40 39
59 58 57 56 55
DN311
MREAD
instruction
Polling/bit strobe
input data area
Polling output data
area
Bit strobe output
data area
model 3000 DeviceNet Module Manual (DN311/DN311A)
6 5 4 3 2 1
6 5 4 3 2 1
22 21 20 19 18 17
38 37 36 35 34 33
54 53 52 51 50 49
Slave
Polling
Slave
Bit strobe
0
0
16
32
48