239
High-volume Data Exchanges
Section 8-3
8-3
High-volume Data Exchanges
Example
Large volumes of data can be transferred when high speed is not required by
sending production directions as recipe data (settings/parameters) to various
machines from the host computer.
8-4
Data Transfer: ASCII Unit to CPU Unit
Example 1
The ASCII Unit is used as a control unit to upload status monitoring data.
CPU Unit
ASCII Unit
Sends a Write Bit to the ASCII Unit via
allocated IR/CIO words.
→
Reads the CPU Unit memory via the
PC READ command to a maximum of
255 words. During the I/O refresh
period (1 cycle), the maximum is127
words.
Allocated
I/O
CPU Unit
ASCII Unit
Host Link or
Network
Trigger
MOV
PC READ
ASCII Unit
CPU Unit
Processes data from the sensor and
outputs it to the actuator. The ASCII
Unit uploads status monitoring data as
required via the PC WRITE@ com-
mand.
→
Reads status monitoring data.
Processing
Intelligent
sensor
Actuator
CPU Unit
ASCII Unit
PC WRITE@
Summary of Contents for C200H-ASC11
Page 1: ...C200H ASC11 ASC21 ASC31 ASCII Units Operation Manual Revised June 2000...
Page 2: ...iv...
Page 4: ...vi...