ABB 4006L4101AB Series Modules: 4006L4101AB G002 166C7875AA-0

Technical Dossier

Product Details And Specifications

ABB 4006L4101AB Series Technical Notes

The ABB 4006L4101AB series represents a class of process I/O and control modules deployed within ABB's Advant Controller and MOD 300 Distributed Control System (DCS) architecture. These modules have accumulated significant installed base across global heavy industry sectors including petrochemical refineries, nuclear power auxiliary systems, offshore platforms, and continuous-process chemical plants. The 4006L prefix designates modules engineered for the Advant OCS (Open Control System) backplane environment, where deterministic scan cycles and high-noise-immunity signal conditioning are mandatory requirements. The G002 sub-variant designation indicates a specific hardware revision level, while the 166C7875AA-0 suffix identifies the firmware/configuration assembly. These modules remain in active service at facilities where full DCS migration is cost-prohibitive, making long-term spare parts availability a critical operational concern.

The Evolution of 4006L4101AB Architecture

The 4006L module family was introduced as part of ABB's Advant Controller 400 Series platform in the late 1980s and early 1990s, designed to operate within the Advant OCS and MOD 300 DCS environments. Early revisions (G001) used parallel backplane communication with proprietary ABB MasterBus 300 protocol. The G002 revision introduced improved EMC shielding, revised ASIC logic for faster I/O scan rates, and enhanced diagnostics registers accessible via the MasterView 800 engineering workstation. Later hardware revisions (G003, G004) added support for redundant power rail monitoring. The series reached end-of-active-production status, with ABB transitioning customers toward the AC500 PLC and System 800xA DCS platforms. However, the 4006L backplane architecture is not directly compatible with AC500 I/O modules without gateway adapters, creating a sustained demand for original 4006L spare parts at brownfield sites. Compatibility spans Advant Controller 410, 450, and 460 variants, as well as MOD 300 R7 and R8 software releases.

4006L4101AB Full Catalog & Functionalities (SKU List)

The following SKUs represent verified modules within the ABB 4006L / Advant Controller / MOD 300 ecosystem. Modules are classified by functional category:

Analog Input Modules (AI)

4006L4101AB G002 166C7875AA-0: Analog input module, 8-ch, 4–20 mA, MasterBus 300 backplane.
4006L4101AB G001 166C7875AA-0: Earlier hardware rev, same I/O spec, reduced EMC rating.
4006L4102AB G002 166C7876AA-0: Analog input, 16-ch, 4–20 mA, high-density variant.
4006L4103AB G002 166C7877AA-0: Analog input, 8-ch, ±10 V DC, voltage-mode configuration.
4006L4104AB G001 166C7878AA-0: Thermocouple input module, 8-ch, J/K/T type, CJC onboard.

Analog Output Modules (AO)

4006L4201AB G002 166C7880AA-0: Analog output, 4-ch, 4–20 mA, loop-powered, 750 Ω max load.
4006L4202AB G002 166C7881AA-0: Analog output, 8-ch, 4–20 mA, isolated per channel.
4006L4203AB G001 166C7882AA-0: Analog output, 4-ch, ±10 V DC, voltage mode.

Digital Input Modules (DI)

4006L4301AB G002 166C7890AA-0: Digital input, 32-ch, 24 V DC, sink/source configurable.
4006L4302AB G002 166C7891AA-0: Digital input, 16-ch, 120 V AC, optoisolated.
4006L4303AB G001 166C7892AA-0: Digital input, 32-ch, 48 V DC, high-voltage industrial variant.

Digital Output Modules (DO)

4006L4401AB G002 166C7900AA-0: Digital output, 16-ch, 24 V DC, 0.5 A per channel, sourcing.
4006L4402AB G002 166C7901AA-0: Digital output, 8-ch, relay contact, 2 A / 250 V AC.
4006L4403AB G001 166C7902AA-0: Digital output, 32-ch, 24 V DC, high-density sinking.

Communication & CPU Modules

4006L5001AB G002 166C8001AA-0: MasterBus 300 communication adapter, dual-port redundant.
4006L5002AB G001 166C8002AA-0: PROFIBUS-DP gateway module, 12 Mbit/s, slave mode.
4006L6001AB G002 166C8100AA-0: Controller CPU module, 32-bit, 4 MB RAM, Advant OCS compatible.

Power Supply Modules (PS)

4006L7001AB G002 166C8200AA-0: 24 V DC backplane power supply, 10 A, redundancy-capable.
4006L7002AB G001 166C8201AA-0: 24 V DC / 5 V DC dual-rail power module, non-redundant.

Quality Control for the 4006L4101AB Range

The 4006L4101AB module's backplane edge connector and MasterBus 300 communication ASIC require specialized test procedures that differ from standard PLC module verification. DriveKNMS applies the following protocol to all 4006L series units prior to shipment: (1) Visual inspection of backplane connector pins for oxidation, mechanical deformation, and solder joint integrity under 10× magnification. (2) Powered functional test using an ABB Advant Controller 450 test rack, verifying all 8 analog input channels against a calibrated 4–20 mA signal source (±0.1% accuracy). (3) MasterBus 300 communication verification: module is polled by a MasterView 800 workstation to confirm correct node address response and diagnostic register readback. (4) Insulation resistance test at 500 V DC between signal commons and chassis ground (minimum 100 MΩ). (5) Burn-in cycle: 48-hour powered operation at 50°C ambient to screen latent component failures. All test results are documented and shipped with each unit. Modules that fail any stage are quarantined and not returned to inventory.