Description:
The ABB 2UBA008929R0101, also designated as GC C960 D101, is a Communication Interface Module manufactured by ABB for use with ABB GCC960 series drive control units, excitation systems, and compatible industrial automation racks. It provides serial communication ports (typically RS-232 / RS-485 / Profibus-DP variant depending on firmware) and connects the local control electronics to a supervisory DCS, SCADA, or PC-based engineering station—handling parameter upload/download, real-time status reporting, and remote command functions with per-channel diagnostic LEDs and hardware-address selection via rotary or DIP switches.
Application Scenarios:
In a pulp & paper machine’s sectional drive line, each AC drive’s GCC960 control unit must report motor speed, torque, and fault codes to the plant-wide ABB System 800xA DCS via a serial fieldbus. After a lighting strike induced a surge on the communication pair, one drive dropped off the network intermittently—traced to a damaged ABB 2UBA008929R0101 (GC C960 D101) communication module. The maintenance electrician powered down the drive control voltage, extracted the module from its card-guide on the GCC960 rack, and inserted a new 2UBA008929R0101, setting the node address rotary switches to match the original (address 5). On power-up, the five front-panel LEDs confirmed supply presence, port activity, and bus communication health. The drive re-appeared on the DCS node list within seconds, and the paper machine resumed full coordinated speed control—no re-wiring, no re-configuration of the host system required. The module’s clear LED indicators allowed the technician to confirm link integrity instantly during the post-replacement walkthrough, directly solving the pain point of invisible bus faults in multi-drive lineups.
Parameter:
| Main Parameters | Value/Description |
|---|---|
| Product Model | 2UBA008929R0101 (Type: GC C960 D101) |
| Manufacturer | ABB (ABB Drives / Motion Control / Industrial Automation) |
| Product Category | Communication Interface Module / Serial & Fieldbus Adapter Card |
| Compatible System | ABB GCC960 Series Drive Control Units, Excitation & GC-series Racks |
| Communication Ports | 2 × Serial Interfaces — COM1 & COM2 (typically RS-232 / RS-485 / Profibus-DP capable per version) |
| Connector Type | 9-pin D-sub (DB9) and/or terminal block (TA532 type per option); M12 in some ruggedized references |
| Node Addressing | Dual rotary switches or DIP switches for bus address / station ID setting |
| Data Rate | Up to 12 Mbps (Profibus-DP mode) / 9600–19200 bps typical for ASCII / Modbus RTU on RS-485 |
| Supply Voltage | 5 V DC / 24 V DC derived from host backplane (typical consumption < 2 W) |
| Diagnostics | 5 front-panel LEDs: PWR, RUN/COMM, TX/RX per port, ERR |
| Isolation | Galvanic isolation between field bus side and internal logic (≥ 500–1500 V DC typical) |
| Mounting Method | Card-guide / slot mount in GCC960 rack or DIN-rail adapter sub-base |
| Operating Temperature | –20 °C to +60 °C |
| Dimensions (approx.) | 148 × 76 × 28 mm (W × H × D), Weight ≈ 0.12–0.18 kg |
| Certifications | CE, cULus, RoHS-compliant per ABB system certification |
Technical Principles and Innovative Values:
- Innovation Point 1: Dual Independent Serial Ports with Protocol Flexibility. The ABB 2UBA008929R0101 provides two separately configurable communication channels (COM1 / COM2), allowing one port to connect to the plant DCS via Profibus-DP or Modbus RTU while the second port services a local HMI, engineering PC, or cascaded drive—eliminating the need for an external port-splitter or protocol gateway.
- Innovation Point 2: Hardware Node-ID Setting with Instant Visual Diagnostics. Address selection via onboard rotary switches (or DIP) means no software configuration is required to place the module on the bus—a critical advantage during emergency replacement. Five dedicated LEDs show power, bus activity per port, and fault status, turning silent communication failures into immediately diagnosable conditions on the shop floor.
- Innovation Point 3: Backplane-Powered, Hot-Swap-Aware Design for GCC960 Racks. The GC C960 D101 draws operating power from the GCC960 backplane and is recognized automatically by the control unit firmware. In redundant or multi-drive setups it can be replaced during a planned drive stop without disturbing adjacent rack electronics, and the module’s self-test routine confirms link integrity on re-insertion.
