Allen-Bradley Slc500, Dh485 - Quartech 2800 Manual

2800 & 2900 Series PLC Drivers
MicroLogic Cable
9 Pin Male D-Type
RXD
TXD
SC
Allen-Bradley DH485 Interface
The SLC500 DH-485 interface uses RS-485 signal levels. The OIT can communicate on the DH485 network along
with other Quartech products, programmers, and any other devices that strictly follows the DH485 protocol. The OIT
must be assigned to a host PLC which is the PLC that its Dialogue File is located in. The OIT can also display data
from other PLCs within the network.
ScreenMaker 2000 port setup:
Byte format: 8 data bits, 1 stop bit, even parity
When connecting multiple devices on the network an Allen-Bradley 1747-AIC Isolated Link Coupler should be used
between the SLC500 processor and the physical network. The OIT is connected to the network through the Quartech
9108 Network Link Adapter.
Model 9108
Network Link Adapter
When connecting a single OIT to a SLC500 processor a direct connection through the eight pin phone jack on the front
of the processor may be preferable. The schematic on the next page shows the cable connections required between
the OIT and the SLC500 DH485 port. This cable is available from Quartech in a standard length of ten feet. Cables
up to one hundred feet in length may be ordered.
Allen-Bradley MicroLogix
Quartech Part Number: 2147-01
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3 <
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2 <
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5 <
Drain Wire
Baud rate: 9600 bps or 19200 bps
PLC Node: 0-31, OIT Node: 0-31, OIT Max poll address
A single Dialogue File address is assigned and must be an Integer type file.
Element 0 is the Command Word.
Element 1 is Screen Trigger one.
Element 2 is Screen Trigger two.
2800/2900
15 Pin Female D-Type
< 2 TXD
< 3 RXD
< 7 SC
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< 4 RTS
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< 5 CTS
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< 1 FG
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DM2829_PLC Revision 2