PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1747-KE is an interface module for the SLC 500 platform. It establishes communication between DH-485 networks and DF1 protocol devices. The unit occupies a single slot in an SLC 500 chassis. It draws 150 mA at 5 VDC and 40 mA at 24 VDC from the backplane. The module supports point-to-point and network communication architectures.
Onboard connectors include one 9-pin Sub-D DF1 port, one 9-pin Sub-D configuration port, and one DH-485 port. Galvanic isolation provides 500 VDC of protection between the backplane and serial ports. It also isolates the serial ports from each other. Configurable serial protocols cover RS-232, RS-422, RS-423, and RS-485 standards. Front-panel status indicators show communication and fault conditions.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Category | PLCs |
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| Product Line | SLC 500 |
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| Weight | 1.50 lbs (0.68 kg) |
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| Module Type | Interface Module |
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| Operating Temperature | 0...+60 °C (+32...+140 °F) |
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| No. of Ports | One (1) Configuration port; One (1) DF1 port; One (1) DH485 port |
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| Supported protocols | DH485; DF1 |
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| Slot Width | 1 slot |
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| Transmission speed | 300 - 19200 Kbps |
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| Port isolation | 500 VDC between Backplane to CONFIG port; 500 VDC between Backplane to DF1 port; 500 VDC between CONFIG and DF1 ports. |
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| Clock/Calendar Accuracy | ±1 minute/month at 25 °C (77 °F); +0, -6 minute/month at 60 °C (140 °F) |
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| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
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| Relative Humidity | 5 to 95% without condensation |
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| Agency Certification | UL / C-UL listed Class I, Division 2, Groups A, B, C, D CE marked for all applicable directives C-Tick marked for all applicable acts |
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| Communication | RS-232 Port |
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| Communication Ports | RS-232/423, -422, -485, DH-485 |
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| Backplane Current (5 Volts) | 150 milliamps |
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| Backplane Current (24 Volts) | 40 milliamps |
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| Cable | Belden 9463 |
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| Connectors | 6-Pin Phoenix Connector |
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TECHNICAL INFORMATION
Features
- Provides protocol conversion between DH-485 and DF1 serial networks.
- Supports RS-232, RS-422, RS-423, and RS-485 physical communication links.
- Delivers 500 VDC isolation between backplane logic and serial communication circuits.
- Operates at selectable transmission rates ranging from 300 bps to 19200 bps.
- Includes front diagnostic LEDs for link activity, configuration, and fault tracking.
TECHNICAL INFORMATION
Applications
- Integration of DF1 serial devices into Allen-Bradley DH-485 networks.
- Point-to-point and multidrop remote modem connectivity for SLC 500 controllers.
- Industrial automation systems requiring isolated serial data communications.
TECHNICAL INFORMATION
Connections / Interfaces
- One 9-pin Sub-D connector configured for DF1 protocol communication.
- One 9-pin Sub-D configuration port.
- One RJ-45 connector dedicated to DH-485 network connections.
- Internal jumpers JW1, JW2, and JW4 to select communication interface modes.
TECHNICAL INFORMATION
Installation Guidelines
- Turn off all chassis power before inserting or removing the module.
- Wait approximately 10 seconds after power down before handling the hardware.
- Seat the module firmly into any available SLC 500 chassis slot.
- Maintain maximum cable lengths of 15 meters for RS-232 serial connections.
TECHNICAL INFORMATION
Configuration Guidelines
- Set hardware jumper JW1 to configure the CONFIG port electrical interface.
- Configure jumper JW2 to establish the electrical standard for the DF1 port.
- Position jumper JW4 to establish module functionality and interface modes.
TECHNICAL INFORMATION
Compatibility
- Mounts in standard Allen-Bradley SLC 500 1746 chassis.
- Interoperates with DF1 full-duplex and half-duplex communication devices.
- Compatible with direct connect, manual, auto answer, and DTE controlled answer modems.
TECHNICAL INFORMATION
Compliance and Certifications
- UL and C-UL Listed
- Class I, Division 2, Groups A, B, C, D Hazardous Locations
- CE Marked
- C-Tick Marked
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSMounts in standard Allen-Bradley SLC 500 1746 chassis. Interoperates with DF1 full-duplex and half-duplex communication devices. Compatible with direct connect, manual, auto answer, and DTE controlled answer modems.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the primary function of the Allen-Bradley 1747-KE module?
The 1747-KE bridges DH-485 networks with DF1 serial communication devices within SLC 500 systems.
What transmission rates does the 1747-KE support?
The module supports communication baud rates from 300 bps up to 19200 bps.
Can the 1747-KE module be removed under power?
No. Power must be switched off for 10 seconds before module installation or removal.
What is the reference price for a 1747-KE interface module?
Observed market reference pricing is approximately $249 USD for refurbished units. Final costs depend on condition and stock levels. All stated figures are indicative market reference pricing only and are not a final quotation.
