Rockwell Automation 2706 DL40 HARDWARE USER MANUAL - Manual (Page 128)

Chapter 11
Installation and Wiring
11 – 7
To the rest of the system, the DL40 looks like a Remote I/O rack, and is
addressed as such.
The maximum cable length (link distance) is limited by the baud rate
selected for the system:
10,000 feet (2,800m) for 57.6K baud
5,000 feet (1,400m) for 115.2K baud
2,500 feet (700m) for 230.4K baud
The actual connection to the Link is through a Catalog Number 1770–CD
Serial Data Link cable which wires to a connector plug for the DL40.
Note: Use 150
Ω , 1 /
2
W. resistors to terminate links operating at 57.6 or
115.2K baud; use 82
Ω
, 1 /
2
W. resistors to terminate links operating at 230.4K
baud.
Connect the DL40 to the scanner module with Allen–Bradley I/O cable,
Catalog Number 1770–CD (Belden 9463).
Refer to Programmable Controller Wiring and Grounding Guidelines
(Publication 1770–4.1) for detailed grounding and wiring guidelines. The
User Manual or Product Data Sheet for your scanner module will also
provide cabling information.
Important: When first installed, the DL40 may misinterpret the hardware
configuration if the DIP switch settings are not correct. If the FAULT
indicator flashes after installation, verify the DIP switch settings and recycle
power to clear the fault.
A connector plug is provided with each DL40. Wire the connector to the I/O
cable according to Figure 11.7.
Connecting to a Scanner
Module