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model 2000 DeviceNet Module Manual (DN611/DN611A)
Chapter 4 Operating Procedures for the DN611 (Software)
4
4.2.1
Input/output data areas
This area stores data between the DN611 and slave devices. Output data from the S
controller is written in this area, while input data is read from this area.
This area has output and input semaphore registers for synchronous communication
between the DN611 and slave devices. The addresses in Figure 4-7 are word addresses
as viewed from the S controller.
Figure 4-7 Input/Output Data Area Configuration
0000H
007FH
Polling/bit strobe input data area
128 words/2048 bits
0080H
00FFH
Polling output data area
128 words/2048 bits
0100H
0103H
Bit strobe output data area
4 words/64 bits
0104H
Bit strobe output data semaphore (1 word)
0105H
Polling output data semaphore (1 word)
0106H
Input data semaphore (1 word)