Network Connections - Mitsubishi Electric MELSEC Q Series User Manual

2 SYSTEM CONFIGURATION

2.2 Network Connections

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11 Use the Web server module whose serial No. (first five digits) is 14122 or
later.
12 Use the Web server module whose serial No. (first five digits) is 15052 or
later.
13 Use the Web server module whose serial No. (first five digits) is 16072 or
later.
14 RCPU can be mounted on the RQ extension base unit or Q series
extension base unit which is routed from RQ extension base unit.
POINT
Use a Web server module appropriate to each CPU module.
If an unsupported one is used for a CPU module, it does not function normally.
(b) When mounting to remote I/O station of MELSECNET/H
The Web server module cannot be mounted to remote I/O station of the
MELSECNET/H.
Mount it next to the CPU module on the master station.
(2) Application to multiple CPU system
The Web server module is compatible with a multiple CPU system.
When using the Web server module in a multiple CPU system, refer to the QCPU
User's Manual (Multiple CPU System).
The Web server module is compatible with the multiple CPU system with function
version B from the first product.
This section explains the connection methods of the Web server module to the network.
(1) LAN connection
The Web server module can be connected to a LAN using the 10BASE-
T/100BASE-TX interface.
Web server module
(a) Precautions for using hubs
The Web server module does not support the IEEE802.3x flow control.
Therefore, when the load of an Ethernet line is high in the connection with
the hub supporting IEEE802.3x, the data to be sent to the module may be
lost.
If the above mentioned phenomenon occurs, add the hubs and reduce the
load on the Ethernet line applied on single hub.
Twisted pair cable
Ethernet
Intranet
MELSEC-Q
External device
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