Allen-Bradley 1784-KT2

@60C6.ADF Allen-Bradley Company, Inc. 1784-KT2

G14124 1784-KT2 Options & Diagnostics Disk (kt2o&d.exe)

1784221.pdf Communication Interface Module Cat. No. 1784-KT2/B Installation Data
17846516.pdf Communication Interface Module Cat. No. 1784-KT2/C Installation Data

Project SLC 5/04

KT2 to PLC-2 Hookup
   1784-CP2 Cable Pinout
KT2 to PLC-3 Hookup
   1784-CP3 Pinout
KT2 to PLC-5 Hookup
   1784-CP Pinout
ADF Sections


1784-KT2 ver C

JPR1 Unknown
JPR2 Unknown
P1 AMP 748367-1 D-Sub 62
T1 597692001
T2 Tokin 976242
U1,15 Sony CXK58257AM-70LL
U2 Toshiba TMPZ84C00AT-6
U3 Toshiba TMPZ84C30AT-6
U4 Toshiba TMPZ84C44AT-6
U7 95542301 V Reg?
U9 LT1039CS
U10-14 HP 2232
U16 A-B 4250424
U17 IDT 7132
U19 A-B 4250623
U37 A-B 4250425
Y1 11.0592 MHz osc

IDT 7132 Dual-port SRAM module (7132/7142 Datasheet)


Required Cables for Connecting to a Programmable Controller:

Use cable   When connecting to
1784-CP2    PLC-2
1784-CP3    PLC-3
1784-CP     PLC-5
1784-CP6    PLC-5/40 and PLC-5/60 (refer to pub 1784-2.26)
1784-CP7    PLC-5/40 & PLC-5/60 (refer to pub 1784-2.29)
Adapter w/1784-CP Cable


KT2 to PLC-2 Hookup

Cable Pinouts for the 1784-CP2 Cable


KT2 to PLC-3 Hookup

Cable Pinouts for the 1784-CP3 Cable


KT2 to PLC-5 Hookup

Cable Pinouts for the 1784-CP Cable

Pin Assignments for 1784-KT, -KT2, -KL Cables


Make sure your network or PLC is not connected to a 1784-KT2 while the diagnostic program is running. Make sure other programs are not running at the same time the diagnostic program is running. Do not run the diagnostic program in a windowing or multi-tasking environment. The diagnostic program does not support these environments. Make sure there are no terminate-stay-resident (TSR) software programs loaded in your PS/2 before you run the diagnostic program.


AdapterID 60C6 Allen-Bradley 1784-KT2

Memory Address
    Memory base address
        <"0C0000h-0C3FFFh">, C400-C7FF, C800-CBFF, CC00-CFFFh, D000-D3FF, D400-D7FF, D800-DBFF, DC00-DFFF

Interrupt Level
   Avoid sharing interrupts with other adapter boards if possible. Sharing of interrupts may degrade the PS/2 performance.
     <"IRQ  9">, 10, 11, 12

Auxilary Communication Port
   Note: Currently, there is only one option available for the Auxiliary Communication Port.
        <"PLC-2/-3 Direct Connect" >, Reserved

 This port, one of the two communication ports available through a single 1784-KT2 connector, is used for communication with a PLC-2 or PLC-3 connected to the 1784-KT2.

The other communication port, the main port, is used for Data Highway Plus communication when the 1784-KT2 is connected to the Data Highway Plus network. You do not need to configure the main port.

Content created and/or collected by:
Louis F. Ohland, Peter H. Wendt, David L. Beem, William R. Walsh, Tatsuo Sunagawa, Tomáš Slavotínek, Jim Shorney, Tim N. Clarke, Kevin Bowling, and many others.

Ardent Tool of Capitalism is maintained by Tomáš Slavotínek.
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