Connection Specifications - Mitsubishi Electric FX5 User Manual

Remark:
TCP and UDP are defined as follows:
• TCP (Transmission Control Protocol): In communications among programmable controllers and networked devices, this
protocol establishes a connection between port numbers of the two devices to perform reliable data communications.
• UDP (User Datagram Protocol): This is a connectionless protocol and thereby its speed is faster than that of TCP, but less
reliable. (Data may be lost or not be received in correct order.)
Select an appropriate protocol, considering the specifications of the external device and the characteristics of the above
protocols.
2.2

Connection specifications

Ethernet cable
Use one of the cables listed below for the Ethernet cable (100BASE-TX/10BASE-T cable) to connect to the built-in Ethernet
port.
Item
When using 100BASE-TX
When using 10BASE-T
*1 Shielded twisted pair cable.
A straight cable can be used. A cross cable can also be used when using direct connection between the personal computer
and the built-in Ethernet.
Ethernet cable connection
This section describes how to connect the built-in Ethernet to a 100BASE-TX/10BASE-T network.
<Connection procedure>
1.
Connect the Ethernet cable to a hub.
2.
Connect the Ethernet cable to the built-in Ethernet.
The following shows the Ethernet cable connection diagram.
RJ45 type modular jack
• When connected to a hub, the CPU module determines the cable used (100BASE-TX or 10BASE-T) and
the communication mode (full-duplex or half-duplex) according to the hub (Auto-negotiation function). Set
the hub to the half-duplex mode if the hub that does not support the auto-negotiation function.
• When the ground terminal of the CPU module cannot be grounded, the communication line may be closed
due to the effects of noise, making it impossible to communicate with other devices.
2 SPECIFICATIONS
16
2.2 Connection specifications
Specifications
Ethernet cable: Category 5 or higher (STP cable
Ethernet cable: Category 3 or higher (STP cable
RJ45 type modular
Ethernet cable (category 3,5 or higher)
*1
)
*1
)