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2.8 Communications with an OMRON PLC (FINS Communications Service)
Using Automatic Reception with the MP3000 as a Slave
2-187
Ethernet Communications
FINS Commands
The FINS commands that can be used with automatic reception in the MP3000 are listed below. When
executing FINS commands on an OMRON PLC that is acting as the master, use the command codes and I/
O memory types that are given in the following table.
I/O Memory Data Areas and Corresponding Registers in the
MP3000
The following table shows the relationship between registers in the MP3000 and the I/O memory data
areas.
In an OMRON PLC, FINS commands are used to specify the address and I/O memory area that corre-
spond to the registers to read or write to in the MP3000.
• Writing
In the First Destination Word operand of the SEND instruction, specify the address in the OMRON CPU
Unit that corresponds to the register address to write to in the MP3000.
• Reading
In the First Source Word operand of the RECV instruction, specify the address in the OMRON CPU
Unit that corresponds to the register address to read from in the MP3000.
Name
Command
Code (Hex) I/O Memory
Type (Hex)
Meaning
Remarks
MR
SR
Reading data
from an I/O
memory area
01
01
B0
Reads CIO Area words.
Use the RECV instruc-
tion.
B1
Reads Work Area words.
B2
Reads Holding Area words.
B3
Reads Auxiliary Area words.
82
Reads DM Area words.
Writing data to
an I/O
memory area
01
02
B0
Writes to CIO Area words.
Use the SEND instruc-
tion.
B1
Writes to Work Area words.
B2
Writes to Holding Area words.
B3
Writes to Auxiliary Area words.
82
Writes to DM Area words.
Reading non-
consecutive
data from the
I/O memory
area
01
04
82
Reads non-consecutive words from the
DM Area.
Create a FINS command
and use the CMND
instruction to send it.
This command can only
read from the DM Area.
Writing Data into MW10000
Enter D10000 in the First Destination Word operand as the corresponding address in the
OMRON CPU Unit.
Reading Data from M02048
Enter D02048 or W000 in the First Source Word operand as the corresponding address in the
OMRON CPU Unit.
Example
Example