Toshiba DeviceNet nv Series, Инструкция по эксплуатации, Страница: 56 / 159

Chapter 4 Settings
6F8C1686
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■Polling Output Data Area
This area stores the data that DN611B outputs to the slave device by the polling method. The program of the
controller writes the output data in this area. There are 128 words (2048 bits) in this area, so you can connect
up to 63 slave devices to one DN611B if the amount of data that the slave device sends to the DN611B does
not exceed the above amount.
■Bit-Strobe Output Data Area
This area stores the data that DN611B outputs to the slave device by the bit strobe method. The program of
the controller writes the bit strobe output data in this area. The transmission data of the bit strobe method is
fixed at 8 bytes (64 bits), and the correspondence between the bits in the area and the node address of the
slave device is as follows.
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
The overview of the output data and input data areas is shown in Figure 4-2.
Figure 4-2 Overview of the output data and input data areas
type1 light Controller
Input
Register Area
Output
Register Area
DN611B
Polling / Bit-Strobe
Input Data
Area
Polling
Output Data Area
Bit-Strobe
Output Data Area
MREAD
MWRITE
Slave
Polling
Slave
Bit-Strobe