Product Overview
Reliance Electric 0-56936-103 AutoMax Network Upgrade Solution: Smooth Transition from Legacy to Modern Control Architecture
The Reliance Electric 0-56936-103 AutoMax Network Communication Card is a critical interface component within the AutoMax distributed control platform, enabling peer-to-peer communication between AutoMax controllers, remote I/O racks, and supervisory SCADA systems. As Reliance Electric’s AutoMax product line has reached end-of-life status, many facilities operating legacy drive systems, coordinated motion control lines, and multi-axis winding or converting machinery now face the challenge of sourcing verified replacement units or planning a structured migration to a supported control architecture.
TOPNLMS maintains a dedicated inventory of tested 0-56936-103 cards to support both immediate emergency replacements and phased system modernization projects. Each unit is inspected, powered-on tested, and shipped with full documentation to minimize your plant downtime and reduce commissioning risk.
Compatibility Comparison Table
| Parameter |
Reliance Electric 0-56936-103 (Original) |
TOPNLMS Replacement Unit |
| Part Number |
0-56936-103 |
0-56936-103 (OEM-equivalent) |
| Series / Platform |
AutoMax Network |
AutoMax Network |
| Card Type |
Network Communication Card |
Network Communication Card |
| Communication Protocol |
AutoMax Peer-to-Peer Network (proprietary token-passing) |
Fully compatible — same protocol stack |
| Physical Interface |
Coaxial / AutoMax network connector |
Identical connector pinout and form factor |
| Rack / Slot Compatibility |
AutoMax controller rack (standard card slot) |
Direct drop-in — no rack modification required |
| Power Supply Requirement |
Supplied via backplane from AutoMax power supply module |
Same backplane power draw — no additional PSU needed |
| Programming / Configuration |
Configured via AutoMax Programming Executive (APE) software |
No re-programming required for direct replacement |
| Installation Space |
Single slot in AutoMax controller chassis |
Identical single-slot footprint |
| Replacement Recommendation |
OEM discontinued — source from authorized surplus |
Tested, inspected, ready to ship |
| Warranty |
OEM warranty expired (EOL product) |
12-Month Warranty from TOPNLMS |
Seamless Upgrade Solutions
A successful AutoMax network card replacement rarely happens in isolation. In most plant environments, the 0-56936-103 operates as part of a broader AutoMax control node that includes the AutoMax controller module itself, the AutoMax power supply, and one or more remote I/O adapter cards that connect field devices back to the network backbone. When replacing the communication card, it is good engineering practice to simultaneously inspect the AutoMax I/O rack backplane connectors and the coaxial network cabling for signs of oxidation or mechanical wear — both of which are common failure points in systems that have been in continuous service for 15 to 25 years.
For facilities running coordinated multi-drive systems, the AutoMax network card interfaces directly with Reliance Electric FlexPak 3000 and GP2000 series DC drives, as well as AutoMax-compatible AC drive nodes. If your migration scope extends beyond a single card swap, TOPNLMS can also source AutoMax controller boards, AutoMax remote I/O modules, and AutoMax network tap assemblies to support a full rack-level restoration without requiring a complete platform migration.
Where a full platform migration is the preferred path — for example, moving from AutoMax to a modern Allen-Bradley ControlLogix or Siemens S7-300/S7-1500 architecture — the 0-56936-103 replacement card can serve as a bridge unit to keep the existing system operational during the transition period. This approach allows engineering teams to develop and validate the new PLC program, configure EtherNet/IP or PROFIBUS DP communication modules, and perform parallel testing without forcing an unplanned production shutdown. Signal isolation modules and terminal block adapter assemblies are commonly used during this phase to interface legacy AutoMax I/O wiring with new controller I/O cards, preserving existing field wiring and reducing rewiring labor costs significantly.
For sites that require HMI integration, the AutoMax network communicates with supervisory systems via DDE or OPC-DA bridges. During a migration project, a modern OPC-UA gateway can be introduced alongside the existing AutoMax network to provide real-time data visibility to new SCADA platforms while the legacy AutoMax controllers remain in service. Programming cables and USB-to-serial adapters compatible with the AutoMax Programming Executive are also available through TOPNLMS to support on-site diagnostics and configuration verification prior to card swap-out.
Retrofit Guidance FAQ
Q: Can I replace the 0-56936-103 without modifying my existing AutoMax network wiring?
A: Yes. The replacement card uses the identical coaxial network connector and backplane interface as the original. No wiring changes are required for a direct card swap. Simply power down the AutoMax rack, remove the failed card, seat the replacement in the same slot, and restore power. The network node address is stored in the controller, not the communication card, so no re-addressing is needed.
Q: Do I need to reload my AutoMax application program after replacing the card?
A: No. The 0-56936-103 is a communication interface card and does not store the application program. Your AutoMax controller module retains the program in battery-backed RAM. Replacing the network card does not affect program memory. However, we recommend verifying battery condition on the controller module as part of any maintenance intervention.
Q: What if my AutoMax network has multiple nodes — will replacing one card affect the rest of the network?
A: The AutoMax network uses a token-passing protocol. During the card swap (which requires a brief power-down of the affected rack), the remaining network nodes will detect the loss of that node’s token and re-establish the network ring automatically upon power restoration. Total network recovery time is typically under 30 seconds after the replacement rack comes back online.
Q: Is the 0-56936-103 compatible with both AutoMax Series 1 and Series 2 controller racks?
A: The 0-56936-103 network communication card is designed for the AutoMax platform and is compatible with standard AutoMax controller chassis configurations. Please provide your full system configuration details when placing your order so our technical team can confirm slot and revision compatibility for your specific installation.
Q: Can TOPNLMS support a phased migration from AutoMax to a modern PLC platform?
A: Yes. We regularly support customers who need to maintain AutoMax system availability while planning a migration to ControlLogix, S7-1500, or other modern platforms. We can supply replacement AutoMax cards to extend system life during the transition, and our technical team can advise on signal isolation, I/O mapping, and communication gateway strategies to support parallel operation during cutover.
Warranty Assurance
Every Reliance Electric 0-56936-103 AutoMax Network Communication Card shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Our pre-shipment inspection process includes visual examination for physical damage, board-level cleaning, powered-on functional testing on an AutoMax-compatible test bench, and verification of network communication handshake behavior. Units that do not pass all inspection criteria are not shipped.
In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period. Our average response time for warranty inquiries is one business day. Replacement units are dispatched with priority shipping to minimize your production impact. We maintain reserve stock of the 0-56936-103 specifically to support warranty exchange requests without delay.
For urgent requirements, expedited shipping is available to most destinations worldwide, with typical transit times of 3–7 business days from our Xiamen warehouse to North America, Europe, and Southeast Asia. All shipments include tracking, commercial invoice, and packing list documentation suitable for customs clearance.
TOPNLMS has been supplying industrial automation components to maintenance engineers, OEM integrators, and MRO procurement teams since our founding. Our focus on the legacy and obsolete automation market means we understand the urgency and technical precision required when a critical control system component fails. We are committed to providing verified parts, honest technical guidance, and reliable after-sales support for every order.