Toshiba 2000 V Series - Page 78

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model 2000 DeviceNet Module Manual (DN611/DN611A)
Chapter 4 Operating Procedures for the DN611 (Software)
4
(4) Bit strobe output data area (0100H to 0103H: 4 words)
This area stores data that the DN611 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.
(5) Polling output data area (0080H to 00FFH: 128 words)
This area stores data that the DN611 outputs to slave devices in polling mode.
The S controller ladder program writes output data in this area. The area has a size
of 128 words (2048 bits), so unless the size of data the DN611 sends to slave devices
doesn't exceed the area capacity, up to 63 slave devices can be connected to one
DN611.
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 007FH: 128 words)
This area stores data collected by the DN611 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
128 words (2048 bits), so unless the size of data that slave devices send to the
DN611 doesn't exceed the area capacity, up to 63 slave devices can be connected to
one DN611.
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.
Figure 4-8 Sketch of Input/Output Data Areas
Table 4-1 Bit Strobe Output Data Area Configuration
F E D C B A 9 8 7 6 5 4 3 2 1 0
0100H 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0101H 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0102H 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
0103H 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48
Polling
Slave
Slave
Bit strobe
Bit strobe output
data area
Polling output data
area
Polling/bit strobe
input data area
MWRITE
instruction
MREAD
instruction
Output area
register area
Input data
register area
DN611 S controller