Daisy Chain Maximum Distances; Daisy-Chain Maximum Distances - PowerLogic EGX200 Instruction Bulletin

Chapter 4—Installation and Wiring
Wiring Connections

Daisy Chain Maximum Distances

The maximum daisy chain distance is determined by the baud rate and the types of
RS-485 devices (2-wire/4-wire) on the daisy chain. The RS-485 ports will support daisy
chains that fall within the specifications shown in Tables 4–1 and 4–2.
Table 4–1: 4-Wire Daisy Chain Maximum Distances
Baud Rate
1200
2400
4800
9600
19200
38400


Due to the volume of RS-485 devices in the field, this table is only to be used as a guide and was tabulated
based on POWERLOGIC 4-wire devices and POWERLOGIC 4-wire devices that support 2-wire devices.
Table 4–2: 2-Wire Daisy Chain Maximum Distances
Baud Rate
1200
2400
4800
9600
19200
38400


Due to the volume of RS-485 devices in the field, this table is only to be used as a guide and was tabulated
based on POWERLOGIC 4-wire devices and POWERLOGIC 4-wire devices that support 2-wire devices.
24
Max distance for 1–16 devices
10,000ft (3,048m)
10,000ft (3,048m)
10,000ft (3,048m)
10,000ft (3,048m)
5,000ft (1,524m)
5,000ft (1,524m)
Max distance for 1–8 devices
10,000ft (3,048m)
10,000ft (3,048m)
10,000ft (3,048m)
10,000ft (3,048m)
5,000ft (1,524m)
2,500ft (762m)


Max distance for 17–32 devices
10,000ft (3,048m)
5,000ft (1,524m)
5,000ft (1,524m)
4,000ft (1,219m)
2,500ft (762m)
1,500ft (457m)


Max distance for 9–16 devices
10,000ft (3,048m)
5,000ft (1,524m)
5,000ft (1,524m)
4,000ft (1,219m)
2,500ft (762m)
1,500ft (457m)
© 2001 Schneider Electric All Rights Reserved
63230-314-200/A2
8/2001