Mewtocol-Com Master/Slave Communication (Ascii Communication) - Panasonic FP7 CPU Unit User Manual

1.3.2 MEWTOCOL-COM Master/Slave Communication
(ASCII Communication)
 Overview of function
• Execute communication using MEWTOCOL-COM, a communication protocol used by our PLC.
• One of the device has the sending right, and executes communication by sending
commands to devices that support MEWTOCOL-COM, and receiving responses.
• The slave-side PLC responds automatically, so no program concerning communication is
necessary.
• Also on the master-side PLC, messages in accordance with the protocol are automatically
generated by PLC. In the user program, reading and writing can be done simply by
specifying the station no. and memory address and executing SEND/RECV commands.
• Because MEWTOCOL-COM communication is on an ASCII basis, it is suitable for
sending/receiving text data.
• The data size that can be sent or received in a single communication is up to 507 words for
register transmission and 1 bit for bit transmission.
FP7 CPU
IP XXXXXX
Master
communication
Slave
communication
 Applications of MEWTOCOL-COM communication
This is used for sending text data between our devices that support MEWTOCOL-COM via
Ethernet. This method can also be used for connecting a programming tool.
• Programmable controller FP series
Ethernet LAN
Command
Response
Send/receive data using
MEWTOCOL-COM
Command
Response
1.3 Overview of Communication Functions
Device supporting
MEWTOCOL-COM
IP XXXXXX
1-7