Rockwell-automation 2705 REDIPANEL KEYPAD MODULE USER MANUAL Instrukcja Użytkownika Strona 16

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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
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