Mitsubishi Electric MELSEC Q Series User Manual page 53

2 SYSTEM CONFIGURATION
Item
Web server module side interface
NAT
UPnP
2 - 8
(4) Broadband router
The following table provides the specifications of the broadband router applicable
to the Web server module.
Operable with the interface specifications of the CH1 (10BASE-
T/100BASE-TX) side of the Web server module (refer to Section 3.1).
Should have the NAT (address conversion) function.
Should be compatible with Universal Plug and Play (UPnP). ( 1)
1 When the broadband router is incompatible with UPnP, it is necessary for the user to
make a contract on a static IP address with an Internet service provider and make the
NAT setting of the router.
(5) Twisted pair cable
Use the twisted pair cable that meets IEEE802.3 10BASE-T/100BASE-TX
standards.
(a) For 100Mbps
(Unshielded twisted pair cable (UTP) or shielded twisted pair cable (STP))
1) Straight cable: Category 5 or higher
2) Crossing cable: Category 5 or 5e
(b) For 10Mbps
(Unshielded twisted pair cable (UTP) or Shielded twisted pair cable (STP))
1) Straight cable: Category 3 or higher
2) Crossing cable: Category 3 to 5e
POINT
During the high speed communication (100Mbps) via 100BASE-TX connection, a
communication error may occur due to the effect of high frequency noise generated
from the device other than programmable controller, depending on the installation
environment.
Take the following countermeasures on the Web server module side to eliminate
the effect of high frequency noise.
(1) Wiring
 Do not bundle the twisted pair cables with the main circuit or power cables or
bring them close to each other.
 Make sure to place the twisted pair cable in a duct.
(2) Cable
 In the environment where the cable is susceptible to noise, use a shielded
twisted pair cable (STP cable).
(3) 10Mbps communication
 Connect the 10Mbps-compatible device with Web server module, and then
transmit the data to the device at transmission speed of 10Mbps.
Specifications
MELSEC-Q
2 - 8