Data Transmission And Reception; Types Of Data; Types Of Data Transmission And Reception - Omron C200H-MC221 Operation Manual

Data Transmission and Reception

4-3

Data Transmission and Reception

4-3-1 Types of Data

4-3-2 Types of Data Transmission and Reception

I/O Transfer
Intelligent Transfer
This section provides outlines of data transfer between a ladder program and
the MC Unit.
Four types of data can be transferred.
• Position data
• System parameters
• Monitoring data (for the current position and number of the program being
executed)
• Special data (regarding the flash memory)
Position data can be read and written. Monitoring data and part of system
parameters can be read only.
The above types of data are allocated to the following addresses of the MC Unit.
Address
0000 to 1999
4000 to 5999
6000 to 6099
6100 to 6101
The above addresses must be allocated to enable a ladder program to transfer
data with the MC Unit.
The following two types of data transmission and reception are available to a lad-
der program.
I/O transfer makes it possible to transfer data of 6,000 word max. by using the
PC's I/O refresh data, initial setting, and expansion data areas of the interface
area.
Use I/O transfer to transmit or receive a large volume of position data.
The IOWR and IORD instructions of a ladder program make it possible to trans-
fer a maximum of 128-word data.
The MC Unit can use these instructions if the MC Unit is mounted to the
C200HX, C200HG, or C200HE.
Intelligent transfer can transmit or receive data faster than I/O transfer.
Use intelligent transfer to transmit or receive a small volume of position data at
high speed.
Data
Position data
The addresses correspond to A0000 to A1999.
System parameters
Monitoring data
Special data
Section 4-3
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