Seica AA (ACLAM) Series Modules - AA-ACLAM007-00

Technical Dossier

Product Details And Specifications

Seica AA (ACLAM) Series Technical Notes

The Evolution of AA-ACLAM Series Architecture

The AA-ACLAM architecture was introduced by Seica S.p.A. (headquartered in Strambino, Italy) as part of its second-generation ATE platform, succeeding earlier single-board designs that lacked field-replaceable modularity. The initial release established a 96-pin DIN backplane standard with a proprietary high-speed serial bus for inter-module communication. Subsequent hardware revisions introduced DSP co-processors on analog conditioning cards — the ACLAM007 sub-family being the primary beneficiary — enabling on-card signal filtering, gain calibration, and fault detection without loading the central CPU module.

Compatibility across hardware revisions is managed through firmware versioning. Early ACLAM modules (Rev A/B) operate under a 5V-only backplane power rail; later revisions (Rev C onward) introduced a dual 5V/3.3V rail to support lower-power DSP silicon. Cross-revision installation requires verification of backplane power rail compatibility before module substitution. Modules from the ACLAM007 sub-family are confirmed compatible with Rev B through Rev D backplanes when firmware is matched. The series entered its mature/end-of-active-production phase, meaning Seica no longer manufactures new units to order; however, the installed base remains substantial, and long-term maintenance support is the primary procurement driver for this catalog.

AA-ACLAM Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, real-world components within the Seica AA-ACLAM platform, organized by functional category. Each entry reflects the module's primary role within the backplane architecture.

DSP Analog Conditioning Modules (ACLAM007 Sub-Family)

AA-ACLAM007-00: DSP analog module, base configuration, 16-ch differential input, 14-bit ADC, on-card gain calibration.
AA-ACLAM007-01: DSP analog module, extended range variant, ±20V input, programmable filter cutoff, Rev C backplane required.
AA-ACLAM007-02: DSP analog module with isolated analog outputs, 4-ch DAC, 12-bit resolution, loop-powered signal conditioning.
AA-ACLAM007-03: High-speed DSP analog module, 1 MSPS sampling rate, dual-port SRAM buffer, for transient capture applications.
AA-ACLAM007-10: DSP analog module, thermocouple input variant, cold-junction compensation on-card, Type K/J/T support.

Digital Input Modules

AA-ACLDI016-00: 16-channel digital input module, 24VDC logic, optically isolated, 3ms input filter, DIN backplane interface.
AA-ACLDI032-00: 32-channel digital input module, 24VDC, dual-group isolation, high-density slot format.
AA-ACLDI016-01: 16-channel digital input module, 120VAC input compatible, surge-protected, for field signal interfaces.

Digital Output Modules

AA-ACLDO016-00: 16-channel digital output module, relay contact type, 2A per channel, 250VAC rated.
AA-ACLDO016-01: 16-channel digital output module, transistor sink type, 24VDC, 0.5A per channel, fast switching.
AA-ACLDO032-00: 32-channel digital output module, transistor source type, high-density, short-circuit protected.

CPU / Controller Modules

AA-ACLCPU-00: Central processing unit module, 32-bit RISC architecture, 256KB program memory, real-time OS, backplane master.
AA-ACLCPU-01: CPU module, enhanced variant, 1MB program memory, Ethernet port, supports remote diagnostics.
AA-ACLCPU-02: CPU module, redundant configuration support, hot-standby switchover <50ms, for high-availability installations.

Communications Adapter Modules

AA-ACLCOM-RS: RS-232/RS-485 dual-port communications adapter, configurable baud rate up to 115200, Modbus RTU support.
AA-ACLCOM-PB: PROFIBUS-DP communications adapter, DP-V1 class 1 & 2, up to 12 Mbit/s, GSD file available.
AA-ACLCOM-ET: Ethernet TCP/IP communications adapter, 10/100 Mbit, Modbus TCP, EtherNet/IP compatible.

Power Supply Modules

AA-ACLPWR-05: 5VDC backplane power supply module, 20A output, wide-range AC input 85–264VAC, active PFC.
AA-ACLPWR-DR: Dual-rail power supply module, 5VDC/3.3VDC output, for Rev C/D backplanes, redundant input capable.

Sourcing Hard-to-Find & Obsolete AA-ACLAM Series Parts

The AA-ACLAM series has entered end-of-active-production status. Seica S.p.A. no longer fulfills new manufacturing orders for individual module SKUs in this family. For facilities operating Seica-based test systems or process control loops, the procurement challenge is sourcing verified, tested replacement modules without triggering a full system migration — a project that typically requires 12–36 months of engineering effort and capital expenditure in the millions.

Quality Control for the AA-ACLAM Series Range

The AA-ACLAM backplane architecture presents specific test challenges due to its proprietary high-speed serial bus and multi-rail power sequencing requirements. Standard bench power supply testing is insufficient to validate module behavior under real backplane conditions. DriveKNMS operates a dedicated AA-ACLAM test rig that replicates the full backplane environment, including correct power rail sequencing (5V before 3.3V on Rev C/D units), bus arbitration timing, and slot-address configuration.