Rockwell Automation 2705 REDIPANEL KEYPAD MODULE USER MANUAL - Manual (Page 16)

Chapter 3
Installing the Bulletin 2705 Keypad Module
3–5
Step 4 - To complete the mechanical installation, apply the mounting
brackets and tighten all the captive knurled thumbscrews to 5
in–lbs. only. A torque screwdriver is recommended for this
operation. Figure 3.4 shows the location of these screws.
Figure 3.4
Mounting Bracket Thumbscrews
The remote I/O link begins at the scanner module. The scanner modules and
PLC controllers impose physical and logical limitations on the link. You
have to know these limitations to avoid exceeding them.
•
To the rest of the system, the Keypad Module looks like a remote I/O
rack, and is addressed as such.
•
You may distribute up to 16 remote I/O devices along the link.
•
The maximum cable length (link distance) is limited by the baud rate
selected for the system:
- 10,000 feet (2,800m) for 57.5K 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 Serial Data Link cable (Catalog
No. 1770–CD) which wires to a connector plug for the Keypad Module.
Connecting to a Remote I/O Link