DH-485 Network Overview

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DH-485 Interfaces

DH-485 Interfaces

Cat. No. Function Communication Interface Communication Rates (bit/s) Current Load
1784-PKTX,
1784-PKTXD
PKTx Communication Card Performs data transmission, management, and local network diagnostics for SLC processors over the DH-485 link. PKTX: 1 DH+ or Remote I/O and 1 DH-485 port
PKTXD: 2 DH+ / 2 remote I/O ports and 1 DH-485 port
• DH-485: 1200, 2400, 4800, 9600, 19,200 0.8 A @ 5V DC
1747-AIC Isolated Link Coupler Provides the connection for SLC processors and other DH-485 devices to the DH-485 network. Shielded twisted-pair • 0.085 A @ 24V DC
1747-UIC USB to DH-485 Interface Converter Provides an interface between a computer's universal serial port (USB) and DH-485 ports on SLC500, MicroLogix, CompactLogix, PanelView, AIC and AIC+ products. 2 ports:
• USB
• DH-485
(RJ-45 or 9-pin D-shell, switch selectable)
19200 Powered by computer's USB port
1746-BAS BASIC Module Runs user-written BASIC programs independent of the processor. 2 peripheral ports configurable for:
• RS-422
• RS-485
• RS-232/423 compatible: 1 DH-485 port
• 300
• 600
• 1200
• 2400
• 4800
• 9600
• 19200
• 0.150 A @ 5V DC
• 0.040 A @ 24V DC
1747-KE RS-232-C / DH-485 Interface Module Chassis-resident module that interfaces the SLC processor to an RS-232 device, like a modem. Communication between the processor and the 1747-KE occurs via a DH-485 network (and not over the backplane). 3 ports:
• 1 DH-485
• 1 DF1
• 1 configuration
DF1 and configuration ports accommodate RS-422, RS-485, and RS-232/423 communication configurations
• DH-485: 1200, 2400, 4800, 9600, and 19200
• DF1 and configuration ports: 300, 600, 1200, 2400, 4800, 9600, and 19200
• 0.150 A @ 5V DC
• 0.040 A @ 24V DC
1761-NET-AIC AIC+ Advanced Interface Converter Provides an interface between a DH-485 link and an RS-232 link. In some configurations, it can be powered from the RS-232 device. 3 ports:
• 2 RS-232
• 1 DH-485
• 600
• 1200
• 2400
• 4800
• 9600
• 14400
• 19200
• 120 mA @ 24V DC
• 200 mA inrush at power turn-on
⋆ Requires a 1747-AIC Link Coupler.