Download Allen-Bradley 1784-KT/B Technical data

Using SB default segment parameters is highly recommended. See [PLCDefault] Section (page
43). At least the DefaultStation (page 43) needs to be set.
For complex installations with file copy to multiple PLCs, each segment can be specified in detail
in the [SegmentN] Section (page 44).
Connecting SB to DH+
DH+ network design is explained in [5], chapter 5. To successfully maintain a system of PLCs,
SBs and MMIs, a general knowledge in this area is required. Information about the physical
installation of DH+ is covered in [3], chapter 11. To connect the SB 1784-KT card to a DH+
network, refer to [2], page 12.
Verify A-B File Copy
With all MCs connected and powered up, the DH+, DH485 or DF1 cable connected, the host
PLCs powered up and configured, reboot SB and check The Home Screen (page 31). All MCs
and segments should be in “Run” mode. Let the system run for 15 minutes and check rejects in
the A-B File Copy Diagnostic Screen (page 37). There should be no rejects in any segments,
and the Time parameter should stay less than 160.
SETTING UP PLC-2 COMPATIBLE PARAMETERS
For the benefit of older MMI systems, SB will respond to unsolicited telegrams originally designed
for the A-B PLC-2 controller. Some parameters need to be set to cover compatibility issues,
using this method. Especially handling floating point numbers is difficult, since the PLC-2 did not
support floating point numbers at all. If PLC-2 telegrams are to be used, the two parameters
described in PLC-2 Unprotected Messages (page 21) and the [PLC2DATA] Section (page 45)
may have to be changed from their defaults.
A-B SuperBridge Technical Reference
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