YASKAWA MP3000 Series - Page 231

2.8 Communications with an OMRON PLC (FINS Communications Service)
Using the MSG-SNDE Function with the MP3000 as the Master
2-213
Ethernet Communications
Transfer Size
The following table lists the size of data that can be transferred using the MSG-SNDE function. Use the
data size within the ranges that are listed in the following table according to the conditions of the OMRON
PLC slave.
The upper limit to the data size will also depend on the MEMOBUS function code that is specified in the
MSG-SNDE function.
Refer to the following section for details on the data size parameter in the MSG-SNDE function.
 Data Size (PARAM17) (page 2-234)
Setting Example
The following figure illustrates how the contents of 800 bits (50 words) from the MB010000 to
MB01049F hold registers in the MP3000 master are written to the I/O bits in CIO 1000 to CIO 1049 in the
CPU Unit of the OMRON PLC slave.
On the MP3000, bits are written and read in word units. It is not possible to write or read less than whole
words.
Command
Code (Hex)
I/O Memory
Type (Hex)
Meaning Data Size
MR SR
01 01
B0 Reads CIO Area words.
1 to 125 words
(16 to 2,000 bits)
B1 Reads Work Area words.
B2 Reads Holding Area words.
B3 Reads Auxiliary Area words.
82 Reads DM Area words. 1 to 999 words
01 02
B0 Writes to CIO Area words.
1 to 50 words
(16 to 800 bits)
B1 Writes to Work Area words.
B2 Writes to Holding Area words.
B3 Writes to Auxiliary Area words.
82 Writes to DM Area words. 1 to 996 words
01 04 82 Reads non-consecutive words from the DM Area. 1 to 167 words
Ethernet
Ethernet
FINS
Ethernet
TCP
Binary
00
02
00
00
01
00
MB010000 to F
MB010010 to F
MB010490 to F
MB010480 to F
1000
1001
1049
1048
MP3000
(local station)
Master
Data size: 50 words Data size: 50 words
OMRON CS/CJ/CP-series PLC
(remote station)
Port number: 9600 Port number: 9600
Local Station
Hold registers (M registers)
Written.
Remote Station
CIO Area
Slave
FINS Communications
Unit address
Node address
Network address
Communications Protocol
FINS Communications
Unit address
Node address
Network address
Connection Type
Data Code