Trunk Line And Drop Line Length; Trunk Line; Drop Line; European Standards - YASKAWA SI-N3 Technical Manual

13 Trunk Line and Drop Line Length

13 Trunk Line and Drop Line Length
Refer to the ODVA website (www.odva.org) for more information on network cabling.
◆

Trunk Line

The maximum allowable trunk line length depends on the type of cable used and the network baud rate. The total
cable length includes the length of the trunk and the sum of all the drop lines.
Baud Rate (kbps)
125
250
500
To calculate the maximum total length for trunk lines of mixed thick and thin cables, use the following formulas:
• 125 kbps: L + (5 x L
thick
• 250 kbps: L + (2.5 x L
thick
• 500 kbps: L
+ L
thick thin
• thick: Thick cable thin: Thin cable
◆

Drop Line

The drop line is measured from the tap on the trunk line to the transceiver of the DeviceNet node. The total cable
length includes the length of the trunk and the sum of all the drop lines.
Baud Rate (kbps)
125
250
500
14

European Standards

The CE mark indicates compliance with European safety and environmental regulations.
European standards include the Machinery Directive for machine manufacturers, the Low Voltage Directive for
electronics manufacturers, and the EMC Directive for controlling noise.
It is required for engaging in business and commerce in Europe.
This option displays the CE mark based on the EMC guidelines.
EMC Directive: 2014/30/EU
Drives used in combination with this option and devices used in combination with the drive must also be CE
certified and display the CE mark.
When using drives displaying the CE mark in combination with other devices, it is ultimately the responsibility of
the user to ensure compliance with CE standards. Verify that conditions meet European standards after setting up
the device.
◆

EMC Directive Compliance

This option is tested according to European standard EN 61800- 3:2004/A1:2012 and complies with the EMC
Directive. The CE marking is declared based on the harmonized standards.
98
Table 13.1 Trunk Line Cable Length
) ≤ 500 m (1640 ft)
thin
) ≤ 250 m (1640 ft)
thin
≤ 100 m (328 ft)
Table 13.2 Drop Line Cable Length
Maximum at Each Drop
Figure 14.1 CE Mark
Thick Cable
500 m (1640 ft)
250 m (787 ft)
100 m (328 ft)
6 m (20 ft)
YASKAWA SIEP C730600 84F DeviceNet Technical Manual
Thin Cable
100 m (328 ft)
100 m (328 ft)
100 m (328 ft)
Maximum Total
156 m (511 ft)
78 m (256 ft)
39 m (128 ft)