HMS Networks AB7003-B Replacement for CC-Link IE Field

Product Overview

HMS Networks AB7003-B Replacement for CC-Link IE Field: Seamless Migration & Upgrade Solution

The HMS Networks AB7003-B (Anybus Communicator, CC-Link IE Field slave) is a proven industrial protocol gateway that bridges non-CC-Link IE Field devices — such as legacy Modbus RTU/ASCII PLCs, third-party drives, and serial I/O subsystems — into a modern CC-Link IE Field network. For facilities running Mitsubishi Electric iQ-R series, iQ-F series, Q series, or L series PLCs as the CC-Link IE Field master, the AB7003-B delivers a transparent, low-disruption path to retire end-of-life serial nodes without rewiring the entire control cabinet or rewriting the master PLC program.

Whether you are replacing a failed unit, building a spare-parts buffer, or executing a phased modernization of a legacy DCS or standalone PLC island, TOPNLMS maintains verified stock of the AB7003-B and ships from Xiamen with full pre-shipment functional testing and a 12-month warranty.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful migration from a legacy serial or standalone PLC island to a CC-Link IE Field architecture rarely involves a single component. In practice, the AB7003-B sits at the center of a broader bill of materials that must be validated together before the cutover window opens.

On the master controller side, most sites running this gateway are anchored by a Mitsubishi Electric MELSEC iQ-R series CPU — such as the R04CPU or R08CPU — paired with a CC-Link IE Field master/local module (RJ71GF11-T2) installed in the iQ-R main base unit. If the existing master is an older Q series CPU (e.g., Q06UDEHCPU) with a QJ71GF11-T2 CC-Link IE Field master module, the AB7003-B is equally compatible; no firmware changes are required on the gateway side.

On the device (sub-network) side, the AB7003-B communicates via Modbus RTU or ASCII over RS-485. Legacy equipment commonly connected through this interface includes Yaskawa SGDV series servo drives, Mitsubishi FR-A800 series variable frequency drives, and third-party Modbus RTU I/O expansion modules. If your existing wiring uses RS-232 point-to-point rather than RS-485 multi-drop, the AB7003-B’s configurable serial port handles both without an external converter in most single-device topologies.

For cabinet integration, the AB7003-B mounts on a standard 35 mm DIN rail alongside Phoenix Contact or Weidmüller terminal blocks and draws 24 V DC from the same SITOP PSU100S or MEAN WELL DR-series DIN rail power supply already powering your I/O tier — no dedicated PSU is required. If the control cabinet hosts a Mitsubishi GOT2000 series HMI (e.g., GT2710-VTBA), the CC-Link IE Field network topology remains unchanged; the HMI continues to read process data from the master CPU without any modification to the HMI project.

During commissioning, engineers typically use a Mitsubishi GX Works3 programming environment to perform a CC-Link IE Field network diagnostics scan, confirm the AB7003-B appears as a remote device station at the assigned station number, and verify RX/RWr data mapping. The Anybus Configuration Manager (HMS Networks, free download) is used in parallel to define the Modbus register map on the sub-network side. This dual-tool workflow is well-documented and typically completes in under two hours for a single-station replacement.

If your migration scope extends beyond a single gateway — for example, retiring multiple legacy CC-Link V2 remote I/O stations and consolidating them onto CC-Link IE Field — the AB7003-B can be deployed in multiples on the same ring or star topology, each assigned a unique station number. In this scenario, a CC-Link IE Field-compatible managed Ethernet switch (e.g., Cisco IE 4000 series or Moxa EDS-G series) is recommended to maintain deterministic cycle times across all stations.

Retrofit Guidance FAQ

Q: Can I reuse existing RS-485 wiring from the legacy gateway?
A: Yes. The AB7003-B’s sub-network port accepts standard 3-wire RS-485 (A, B, GND). If the existing cable is shielded twisted-pair rated for RS-485, it can be reused directly. Verify termination resistors (120 Ω) are in place at both ends of the bus.

Q: Do I need to modify the Mitsubishi master PLC program?
A: In most replacement scenarios (same station number, same RX/RWr point count), no PLC program changes are required. If you are replacing a different gateway model with a different data map, you will need to update the CC-Link IE Field parameter settings in GX Works3 and remap the Modbus registers in Anybus Configuration Manager.

Q: Is the AB7003-B compatible with CC-Link IE Field Basic (Ethernet-based, non-Gigabit)?
A: No. The AB7003-B is a CC-Link IE Field (Gigabit) slave. It is not compatible with CC-Link IE Field Basic, which uses standard 100 Mbps Ethernet and a different protocol stack. Confirm your master module supports CC-Link IE Field (Gigabit) before ordering.

Q: What is the maximum number of Modbus devices I can connect on the sub-network?
A: The AB7003-B supports up to 31 Modbus RTU slave devices on a single RS-485 bus (standard RS-485 multi-drop limit). Data from all slaves is aggregated and presented to the CC-Link IE Field master as a single remote device station.

Q: How long does configuration take for a direct unit replacement?
A: If replacing a failed AB7003-B with an identical unit, configuration can be restored by importing the saved Anybus Configuration Manager project file (.abc). Total replacement time on-site is typically 30–60 minutes including wiring verification and network diagnostics.

Q: What physical space does the AB7003-B require in the control cabinet?
A: The unit is 27 mm wide × 99 mm high × 114 mm deep on a 35 mm DIN rail. It is significantly more compact than older panel-mount gateways, freeing cabinet space for additional I/O modules or cable management.

Warranty Assurance

Every HMS Networks AB7003-B shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Our pre-shipment process includes:

• Power-on functional test — unit is powered at 24 V DC and verified to boot correctly with status LEDs confirming normal operation.
• Serial port verification — RS-485/RS-232 port continuity and signal integrity checked.
• Firmware version confirmation — firmware version recorded and included in the shipment documentation.
• Anti-static packaging — unit shipped in ESD-safe bag with foam cushioning inside a double-wall carton.

In the event of a Dead on Arrival (DOA) unit, TOPNLMS will arrange a priority replacement shipment at no additional cost. For warranty claims within the 12-month period, our after-sales team responds within 1 business day and coordinates return logistics, repair assessment, or direct replacement based on fault diagnosis. Purchasing in quantity? Ask about our consignment stock and blanket order programs for critical spare-parts management.

For procurement inquiries, technical pre-sales questions, or urgent replacement requests, contact our industrial automation team directly:

📧 [email protected] | 📞 +86 18359293191