Specifications – Rockwell Automation 1747-UIC Universal Serial Bus to DH-485 Interface Converter User Manual

Page 15

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Universal Serial Bus (USB) to DH-485 Interface Converter 15

Publication 1747-IN063C-EN-P - January 2006

Specifications

If the LED
Indicators Show

The Following
Error Exists

Probable
Cause

Recommended Action

• All LEDs off

No power to
1747-UIC

No power from
USB port

1. Check cable connection to computer’s USB port.
2. Verify power to the computer and it’s USB port.
3. Plug the interface converter into a different

computer’s USB port to verify the condition of the
interface converter.

• OK LED on solid
• USB LED off
• DH-485 LED off

No
communication
occurring
through USB or
DH-485 ports

RSLinx is not yet
attempting to
communicate
through the
1747-UIC
interface
converter

1. Check which COM port the interface converter is

configured for.
See Identify the Assigned COM Port on page 11.

2. Verify that the RSLinx RS-232 DF1 driver is

assigned to this COM port, is configured properly,
and is running.
Examples: See page 12 for proper configuration
and page 13 for the Configure Drivers dialog that
shows that the driver is running.

• OK LED on solid
• USB LED

flashing

• DH-485 LED off

No DH-485
communication
s

Duplicate station
address

1. Verify the existing station addresses on the

DH-485 network and make sure that the RSLinx
RS-232 DF1 driver is assigned to an unused
station address in the 0 to 31 range.

• OK LED on solid
• USB LED

flashing

• DH-485 LED

flashing

RSWho doesn’t
display any
devices on the
DH-485 network
other than the
1747-UIC

Improper
connection to
DH-485 network
or improper
configuration of
RSLinx RS-232
DF1 driver

1. Verify that the SW switch is in the correct

position for the DH-485 connector being used.

2. Verify that the correct cable is being used.

See Connect DH-485 Devices to the Interface
Converter’s RS-485 Port
on page 5.

3. Verify that the Device type in the RS-232 DF1

driver configuration is 1770-KF3/1747-KE so that
RSWho will browse stations 0 through 31.

Universal Serial Bus to DH-485 Interface Converter - 1747-UIC

Attribute

Value

Dimensions (HxWxD), Approx.

80.8 x 46.5 x 24.5 mm (3.18 x 1.83 x 0.97 in.)

Dimensions with DIN Rail Mounting
Hardware (HxWxD), Approx.

109 x 50.6 x 31 mm (4.29 x 1.99 x 1.22 in.)

Mounting Hole Center-to-Center Spacing

39.3 mm (1.55 in) and 86.9 mm (3.42 in.)

Temperature Range

0…60 °C (32…140 °F)

USB Speed

USB 1.1 (12 Mbps)

USB Power Consumption

< 100 mA (low power)

DH-485 Baud Rate

19.2 Kbps only

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