1.2 Overview of Communication Functions
1.2.1 PLC Link Functions (MEWNET-W0)
■
Overview of function
● A system can be configured for the PLC link (MEWNET-W0).
● Exclusive internal relays “link relays (L)” and data registers “link registers (LD)” are shared
between the connected PLCs.
● Among up to 16 PLCs, data can be exchanged with 1,008 link relay points and 128 link
register words.
PLC
PLC PLC PLC
RS-485
No.1 No.1 No.1
No.2 No.2
No.3No.3No.3
No.2
(Unit No. 1)
(Unit No. 2) (Unit No. 3) (Unit No. 4)
Send area
Send area
Send area
Receive area
Receive area
Receive area
Receive area
Receive area
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Applications of PLC Link Functions (MEWNET-W0)
Among our FP series PLC, it can be used for link functions with the following models. It is also
capable of 1:1 communication via RS-232C port.
● FP0H (Using communication cassette RS-485 type)
● FP-X0 (L40MR / L60MR)
● FP0R (RS-485 type)
● FPsigma (communication cassette RS-485 type is used)
● FP-X (Using Communication cassette RS-485 type)
● FP2 Multi Communication Unit (Using Communication cassette RS-485 type)
1.2.2 MEWTOCOL Master/Slave Communication
■
Overview of function
● Execute communication using MEWTOCOL-COM, a communication protocol used by our
PLC.
● In master communication, PLC executes communication by sending commands to devices
that support MEWTOCOL, and receiving responses. Messages in accordance with the
1.2 Overview of Communication Functions
WUME-FP7COM-07 1-5
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