Toshiba V Series - 4.2 S Controller Interface Buffer Memory Configuration

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model 3000 DeviceNet Module Manual (DN311/DN311A)
Chapter 4 Operating Procedures for the DN311 (Software)
4
4.2 S Controller Interface Buffer Memory Configuration
The operation of DN311 control and data input/output using the S controller is basically
performed by reading and writing the S controller interface buffer memory with MREAD
and MWRITE instructions.
Figure 4-5 Interface between Controller and DN311
Semaphore
area
RAS
information
area
Input/output
data area
DN311 S controller
Module control
request
Module control
res
p
onse
RAS information
Output to slave
Input from slave
・MREAD instruction
・MWRITE instruction
(Function block)
User program
S controller
interface
buffer memory