About the connection example
Please see below for an example of connection settings for this driver.
Applicable models etc. |
explanation |
This is an example of Ethernet connection settings with the FP series.
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This is an example of Ethernet connection settings with the FP7 series.
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This is an example of how to set up a connection to Data, Logger, and Light using Ethernet.
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Device List
The compatible devices are as follows (see here for how to view the device list).
device |
keyword |
Start address |
explanation |
unit |
reading |
Writing |
Input Relay |
X |
0000 |
3 decimal digits + 1 hexadecimal digit |
bit |
○ |
× |
Output Relay |
Y |
0000 |
3 decimal digits + 1 hexadecimal digit |
bit |
○ |
○ |
Internal Relay |
R |
0000 |
3 decimal digits + 1 hexadecimal digit |
bit |
○ |
○ |
Link Relay |
L |
0000 |
3 decimal digits + 1 hexadecimal digit |
bit |
○ |
○ |
Special Relay |
R |
9000 |
3 decimal digits + 1 hexadecimal digit |
bit |
○ |
○ |
Timer Contact |
T |
0000 |
Decimal |
bit |
○ |
× |
Counter Contact |
C |
0000 |
Decimal |
bit |
○ |
× |
Timer/Counter (Elapsed Value) |
EV |
0000 |
Decimal |
word |
○ |
● |
Timer/Counter (Setting Value) |
SV |
0000 |
Decimal |
word |
○ |
● |
Data Register |
DT |
00000 |
Decimal |
word |
○ |
● |
Link Register |
LD |
00000 |
Decimal |
word |
○ |
● |
File Register |
FL |
00000 |
Decimal |
word |
○ |
● |
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When connecting to the FP7 series, the following restrictions apply.
- Timer/counter area communication not possible - You cannot specify a word area that exceeds 99999. - You cannot specify a bit area that exceeds 9999. |
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When connecting to Data, Logger, or Light, the only devices that can be used are data registers and special internal relays. |
Minimum interval
With the FP series, if you communicate too fast, you may experience problems such as packets not being returned from PLC. If you experience frequent intermittent timeout errors, try increasing the "Minimum communication interval" setting by 5 ms, starting from about 5 ms. The "Minimum communication interval" setting can be changed in the dialog that appears when you click the "Other detailed settings" button on the "Communication details" tab of the "Communication settings" dialog.
About the old FP series
When adding a driver, you can select from the following two types of PLC.
driver |
detail |
①MEWNET-FP Series |
MEWTOCOLThe extended header ("<") is used in the communication procedure. The maximum message length of one packet is 2048 characters. |
②MEWNET-FP series (old) |
MEWTOCOLThe normal header ("%") is used in the communication procedure. The maximum message length of one packet is 118 characters. |
Unless you are using an older model that cannot use the extension header, you should normally use method ①, which uses the extension header.
For details, please contact the PLC manufacturer.
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When communicating with the FP7 series, either format can be used, but format ①, which has a longer message length, is recommended. In addition, for either driver, the communication method to be selected on the FP7 side will be "MEWNET-COM". |
