Overview - Mitsubishi Electric Melsec QJ71LP21 Reference Manual

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OVERVIEW

1 OVERVIEW
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1.1 Overview
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The MELSECNET/H network system includes a PLC to PLC network for
communicating between the control station and normal stations, and a remote I/O
network for communicating between the remote master station and remote I/O stations.
This manual is used for configuring PLC to PLC networks on MELSECNET/H network
systems (hereinafter abbreviated as MESECNET/H.)
When configuring a remote I/O network using MELSECNET/H, refer to Q
corresponding MELSECNET/H Network System Reference Manual (Remote I/O
network).
REMARKS
Networks known as MELSECNET/10H are hereinafter abbreviated as
MELSECNET/H.
The PLC to PLC network system of MELSECNET/H provides more functionality,
higher processing speed and more capacity than the conventional PLC to PLC network
system of MELSECNET/10 network system.
In addition, in pursuit of the maximum ease of use of the MELSECNET/10 network
system, the FA system can be networked easily by combining with GX Developer.
The MELSECNET/H system supports the MELSECNET/H and MELSECNET/H
Extended modes (high functionality and high-speed mode) and the MELSECNET/10
mode (functional and performance compatibility mode) to achieve the network
performance improvement and upward compatibility of MELSECNET/10.
Unless otherwise categorized, this is abbreviated as MELSECNET/H for explanatory
purposes in this manual.
MELSEC-Q
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