Modicon M580 Plc Page 7-5 Technical information, index

7/5 Characteristics Technical information Ethernet network Infrastructure Distance limitations and number of devices per segment Based on standard 802.3, the distance limits and number of devices in cascade are as follows: Type Maximum segment length (1) Maximum segment length (offered by ConneXium devices) Maximum number of hubs in cascade Maximum number of switches in cascade 10BASE-T 100 m/ 328.08 ft 100 m/ 328.08 ft 4 Unlimited 100BASE-TX 100 m/ 328.08 ft 100 m/ 328.08 ft 2 Unlimited 1000BASE-T 100 m/ 328.08 ft 100 m/ 328.08 ft Unlimited 10BASE-FL 2,000 m/ 6,561.66 ft 3,100 m/ 10,170.57 ft (2) 11 (fiber ring) 100BASE-FX 412 m/ 1,351.70 ft 2,000 m/ 6,561.66 ft 4,000 m/ 13,123.32 ft with multimode fiber, 32,500 m/ 106,627 ft with singlemode fiber (3) Unlimited 1000BASE-SX 275 m/ 902.23 ft Unlimited (1) Based on 802.3, full duplex/half duplex. (2) Depends on the optical fiber budget and fiber attenuation. (3) Depends on the optical fiber budget and fiber attenuation, typical specification is 2,000 m/6,561.66 ft for multimode and 15,000 m/49,212.45 ft for singlemode. Physical media The Ethernet 802.3 standard defines the Physical Layer. A summary of the most common media is given below: Type Data rate Cable type Connector type Defined by 802.3 Recommended by Schneider Electric Defined by 802.3 Recommended by Schneider Electric 10BASE-T 10 Mbps CAT 3 - UTP CAT 5E - STP RJ45 100BASE-TX 100 Mbps CAT 5 - UTP CAT 5E - STP RJ45 1000BASE-T 1 Gbps CAT 5 - UTP CAT 5E - STP RJ45 10BASE-FL 10 Mbps Two multimode optical iber cables typically 62.5/125 m fiber, 850 nm light wavelength Two multimode optical iber cables typically 62.5/125 m fiber, 850 nm light wavelength ST 100BASE-FX 100 Mbps Two multimode optical ibers typically 62.5/125 m multimode iber, 1,300 nm light wavelength Two multimode optical ibers typically 62.5/125 m multimode iber, 1,300 nm light wavelength ST SC Two monomode optical ibers typically 9/125 m multimode fiber, 1,300 nm light wavelength SC 1000BASE-SX 1 Gbps Two 62.5/125 or 50/125 multimode optical fibers, 770 to 860 nm light wavelength Two 62.5/125 m or 50/125 m multimode optical fibers, 1,300 nm light wavelength SC LC 1000BASE-LX 1 Gbps Two 9/125 m singlemode optical fibers, 1,300 nm light wavelength LC Note: These specifications are defined by IEEE 802.3. However, some of the cables are no longer being developed. For instance, for 10BASE-T and 100BASE-TX, a CAT-5E cable is used. 2 1 3 4 5 6 7 8 9 10 2 1 3 4 5 6 7 8 9 10

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