New · Sealed In stock
ABB RMBA-01 Modbus Adapter Module — New in Box
SKU: RMBA-01 · ABB
$299.99
Ships with actual-unit photos and the Network Orbitz warranty.
About this item
The ABB RMBA-01 is the Modbus fieldbus option module for ABB ACS800-series drives: it seats in an option slot on the drive's RMIO control board (or mounts remotely on an AIMA-01 module adapter) and joins the drive to a Modbus RTU network as a slave over galvanically isolated RS-485. The multi-drop link scales to 247 stations including repeaters — 31 stations plus a repeater per segment — over bus runs up to 1,200 m at 600 bit/s to 19.2 kbit/s, with built-in active termination selected by DIP switch. It draws just 140 mA at 5 V from the drive and is configured from the drive's control panel.
This listing is a new-in-box unit: the original carton with the printed RMBA-01 user's manual, exactly as photographed. The detachable 4-pole terminal block visible in the photos takes the shielded twisted-pair bus cable (Belden 9841/9842 or equivalent), alongside the 38-pin parallel bus connector that seats the module in the drive.
Condition: New, sealed, as listed. The photographs are of the actual unit you'll receive, covered by our warranty.
Specifications
| Platform | Modbus fieldbus adapter for ABB ACS800 drives (RMIO option slot or AIMA-01 mounting) |
|---|---|
| Protocol | Modbus RTU — drive operates as slave to any Modbus-capable master |
| Bus interface | Galvanically isolated RS-485, multi-drop, max bus length 1,200 m |
| Network size | 247 stations including repeaters (31 stations + 1 repeater per segment) |
| Transfer rates | 600 to 19,200 bit/s, asynchronous half-duplex |
| Connectors | 38-pin parallel bus connector; detachable 4-pole terminal block (max 1.5 mm²) |
| Termination | Built-in active termination, DIP-switch selectable |
| Power / protection | Max 140 mA at 5 V, supplied by the drive; IP20 |
| Brand | ABB |
|---|---|
| Model | RMBA-01 |
| Warranty | Network Orbitz warranty from delivery: repair, replacement, or refund on functional defects. Sealed units may also carry the manufacturer warranty. |
|---|---|
| Returns | Start an RMA with your order number — we respond with a number and prepaid return instructions. |
| Shipping | Tracked, insured carriers (DHL, FedEx, UPS) to 30+ countries. Freight crating for heavy items. |
| Duties & customs | International duties and taxes are billed by your local customs authority — we're happy to advise on documentation before you order. |
