Motorola MVME-147SB-1

Description

Detailed Parameter Table

Motorola MVME-147SB-1

Product Introduction

The Motorola MVME-147SB-1 is a mid-entry legacy industrial VMEbus Single-Board Computer (SBC) from Motorola (now integrated into Emerson’s portfolio), a performance-enhanced model in the MVME-147 series—engineered to bridge the gap between the entry-level Motorola MVME-147SRF (16 MHz 68020) and mid-legacy MVME162 series. Unlike the ultra-light-duty MVME-147SRF, the Motorola MVME-147SB-1 targets applications requiring expanded I/O, faster processing, and moderate data logging capabilities, such as semi-automated control of small 1990s-era assembly lines, medium-frequency monitoring of regional water distribution sensors (30-minute readings), and upgrades for failing 68020-based SBCs in legacy manufacturing equipment.

In automation systems, the Motorola MVME-147SB-1 acts as a “light-duty legacy processing node”: it collects data from 5–10 sensors (via modules like Motorola MVME-710 8-bit digital input or Motorola MVME-200 16-bit analog cards), processes it using its 25 MHz MC68030 processor, and sends semi-complex commands (e.g., variable-speed control for small DC motors) to low-current actuators (e.g., 0.3 A conveyor drives). Its dual RS-232/RS-485 ports enable connectivity to multi-drop sensor networks (e.g., 8 water meters on a single RS-485 bus), while the 3U form factor retains compatibility with space-constrained enclosures. This makes the Motorola MVME-147SB-1 an ideal choice for users needing more capability than the MVME-147SRF but unable to migrate to PowerPC-based SBCs due to OS-9 v1.x/v2.x software dependencies.

Core Advantages and Technical Highlights

Enhanced 68k Performance for Light-Duty Tasks: The Motorola MVME-147SB-1’s 25 MHz MC68030 processor delivers 1.6x the processing speed of the Motorola MVME-147SRF’s 16 MHz MC68020—enabling it to handle semi-automated tasks like synchronizing 2 small assembly stations or processing 30-minute sensor data from 10 points. For example, a small electronics workshop with a 1995 circuit board soldering line (running OS-9 v2.1) can use the Motorola MVME-147SB-1 to monitor 8 temperature sensors (via Motorola MVME-200 cards), adjust soldering iron heat in real time, and log production yields (500+ units/day) to a 40 GB IDE HDD—tasks the MVME-147SRF would struggle with due to speed and memory limitations. This performance boost extends equipment functionality without abandoning legacy software.

Expanded I/O for Multi-Drop Networks: Unlike the Motorola MVME-147SRF (1x RS-232), the Motorola MVME-147SB-1 adds a dedicated RS-485 port and second RS-232—enabling multi-drop sensor connectivity. For instance, a regional water utility monitoring 8 remote pressure sensors (1990s vintage) can connect all sensors to the SBC’s RS-485 port (via a single twisted-pair cable), reducing wiring costs by 70% vs. a single-drop RS-232 setup. The second RS-232 port communicates with a local serial HMI, allowing operators to adjust monitoring thresholds (e.g., alert if pressure drops below 40 psi) without accessing the SBC directly—improving operational flexibility for rural utilities with limited on-site staff.

Expandable Memory for Data Logging: With 8 MB DRAM (expandable to 16 MB) and 2 MB EPROM, the Motorola MVME-147SB-1 offers double the memory of the Motorola MVME-147SRF—enabling medium-frequency data logging (e.g., 30-minute readings from 10 sensors, 2 years of storage on an 8 GB CompactFlash card) or more complex control programs. For example, a small bakery with a 1998 dough mixer (running OS-9 v1.5) can use the expanded memory to run a basic PID loop that adjusts mixer speed based on dough viscosity (measured via an analog sensor), reducing product waste by 15% vs. manual control. The write-protected EPROM also prevents accidental firmware overwrites—a critical feature for unattended equipment.

IDE Storage for Long-Term Data Retention: Unlike the Motorola MVME-147SRF (floppy/CompactFlash only), the Motorola MVME-147SB-1 adds a basic IDE controller supporting 2.5″ HDDs up to 40 GB—enabling long-term data retention for compliance-critical applications. For example, a small pharmaceutical lab with a 1996 temperature-controlled storage unit (regulated by FDA guidelines) can use the SBC to log hourly temperature data to a 40 GB HDD, retaining 5+ years of records for audit purposes. The HDD’s non-volatile storage also eliminates reliance on floppy disks (prone to physical damage) and extends data retention beyond the limits of CompactFlash (which degrades over 5–10 years).

Typical Application Scenarios

In 1990s-era assembly line control, the Motorola MVME-147SB-1 manages a small circuit board assembly line for a regional electronics manufacturer. It connects to 7 sensors (component presence, soldering temperature, conveyor speed) via Motorola MVME-710 (digital) and Motorola MVME-200 (analog) cards, processing data to synchronize 2 soldering stations. Its RS-485 port links to 5 barcode scanners (tracking component serial numbers), while the IDE HDD logs 1 year of production data (1,000+ boards/week) for quality control. The Motorola MVME-147SB-1’s 6 W power consumption fits the line’s vintage 5V DC supply, and its 5°C–50°C operating range withstands the factory’s seasonal temperature fluctuations—critical for meeting weekly production targets of 5,000+ boards.

For regional water sensor monitoring, the Motorola MVME-147SB-1 tracks 8 pressure sensors in a rural water distribution network (installed 1997). It connects all sensors to its RS-485 port (single bus, 2 km range), logging pressure data every 30 minutes to an 8 GB CompactFlash card (enough for 3 years of readings). Its second RS-232 port communicates with a cellular modem, sending daily alerts to the utility’s central office if pressure drops below 35 psi (indicating a leak). The SBC’s expandable 16 MB DRAM runs a basic leak-localization algorithm, narrowing potential leak areas to 1 km segments—reducing repair time by 50% vs. manual patrols. The Motorola MVME-147SB-1’s 25 g shock resistance also withstands vibrations from nearby farm equipment.

In legacy lab equipment upgrades, the Motorola MVME-147SB-1 replaces a failing 68020-based SBC in a 1996 pharmaceutical temperature chamber (running OS-9 v2.0). It connects to 4 temperature/humidity sensors (via Motorola MVME-200 cards), maintaining chamber conditions at 25°C ±0.5°C for drug stability testing. The IDE HDD logs hourly data for FDA compliance (retained for 5 years), while the watchdog timer resets the chamber if software hangs—preventing costly drug sample spoilage. The SBC’s compatibility with the chamber’s existing I/O modules eliminates the need for rewiring, and its 115200 bps serial ports speed up data transfer to a lab PC (reducing download time from 1 hour to 10 minutes).

Motorola MVME-147SB-1

Related Model Recommendations

Motorola MVME-147SRF: Entry-level alternative to the Motorola MVME-147SB-1 with 16 MHz 68020 processor. Suitable for ultra-light-duty tasks (e.g., 2–5 sensors) where budget is prioritized over performance.

Motorola MVME162-12: Ultra-legacy 6U SBC upgrade for the Motorola MVME-147SB-1 with 25 MHz 68040 processor. Ideal for users needing more I/O expansion (e.g., 2 PMC slots) and no space constraints.

Motorola MVME-710: 8-bit legacy digital input module for the Motorola MVME-147SB-1. Provides 8 isolated channels for connecting presence sensors or limit switches in assembly lines.

Motorola MVME-200: 16-bit legacy analog I/O module compatible with the Motorola MVME-147SB-1. Adds 4 analog inputs/2 outputs, enabling temperature/pressure monitoring in lab equipment or water sensors.

Motorola MVME-025: Low-power legacy power supply for the Motorola MVME-147SB-1. Delivers stable ±5V/±12V output (85–264 VAC input) to power the SBC and one PMC card, handling its 8 W max load.

Motorola MVME-901-L: Legacy RS-485 repeater for the Motorola MVME-147SB-1. Extends multi-drop sensor network range by 1 km, ideal for rural water distribution or large factory floors.

Motorola MVME-712-M: Low-current legacy digital output module for the Motorola MVME-147SB-1. Offers 8 channels (0.3 A max) to control actuators like small conveyor motors or solenoid valves.

Motorola MVME-102-L: Proprietary SIMM module for the Motorola MVME-147SB-1. Adds 8 MB of DRAM, expanding memory for data logging or complex control programs.

Installation, Commissioning and Maintenance Instructions

Installation preparation: Before installing the Motorola MVME-147SB-1, verify the VMEbus chassis supports 3U modules and uses a vintage P1/P2 dual connector (1990s pinout)—modern chassis may require adapter brackets. Confirm the power supply provides stable ±5V/±12V (tolerance ±8%, critical for MC68030 stability) using a multimeter. Gather tools: anti-static wristband (to protect the 25 MHz processor), torque screwdriver (0.3 N·m for 3U chassis), serial cable tester (for RS-232/RS-485), and a vintage laptop (running OS-9 v1.x/v2.x) for configuration. If expanding memory, install the proprietary SIMM module before mounting—align with the slot guides, press until seated, and secure with the locking clip. Power off the chassis, clean the VME backplane connectors with a dry soft-bristle brush, then slide the Motorola MVME-147SB-1 into the backplane slowly (avoid bending P2 pins) until fully seated.

Maintenance suggestions: For daily upkeep, check the Motorola MVME-147SB-1’s LEDs—steady green power, no red memory LED, and blinking serial activity indicate normal operation. Run basic BIST weekly via the OS to validate processor/memory (critical for data logging). Clean the SBC’s exterior every 4 months with a dry, static-free cloth—avoid compressed air near the IDE connector (can dislodge HDD cables). Every 12 months, back up IDE/CompactFlash data to a secure server (vintage HDDs are prone to failure) and inspect VMEbus/serial connectors for corrosion (common in lab or rural environments). If the Motorola MVME-147SB-1 loses RS-485 connectivity, check the bus termination resistor (120Ω) and replace the twisted-pair cable (use shielded cables to reduce interference). Store spare units in anti-static bags in a climate-controlled environment (15°C–25°C, 45%–55% humidity) to prevent EPROM/DRAM degradation.

Service and Guarantee Commitment

The Motorola MVME-147SB-1, as a mid-entry legacy model, is backed by a 12-month factory warranty from Emerson—covering defects in materials and workmanship (e.g., processor failures, serial port malfunctions, IDE controller issues) in remaining stock units. If a defect is identified during the warranty period, Emerson provides free 7-day replacement for available units—suitable for applications where downtime impacts production (e.g., assembly lines, lab equipment). For extended support, customers can purchase legacy service contracts (up to 24 months) including access to archived documentation (e.g., OS-9 v2.x configuration guides, PMC card compatibility lists) and limited email support from engineers specializing in 1990s 68k-era hardware.

Emerson maintains a limited global stock of critical components for the Motorola MVME-147SB-1 (e.g., MC68030 processors, 8 MB SIMM modules) to support essential legacy users (e.g., small manufacturers, regional utilities) until 2030. Due to the model’s vintage nature, on-site service is not available, but Emerson provides step-by-step troubleshooting guides for common issues (e.g., OS-9 v2.x boot failures, RS-485 bus errors). This commitment ensures the Motorola MVME-147SB-1 remains a viable solution for preserving light-duty legacy systems, helping users avoid costly replacements and maintain essential operations.