Product Description of ProSoft MVI69-ADM

MVI69-ADM (Application Development Module) is a C language programmable application development module specially designed by ProSoft for the Rockwell CompactLogix / MicroLogix 1500 platform. It enables users to independently run custom C programs on the module, achieving dedicated protocols, non-standard serial communication, algorithm encryption, or high-speed data processing. It is the core development tool for implementing highly customized functions on the CompactLogix platform. 

I. Model Analysis

MVI69: Specialized module for CompactLogix / MicroLogix 1769 platform

ADM: Application Development Module (for C language programming, user-defined functions, dual isolation serial ports)

Core Positioning: C language programmable, user-defined functions, dual isolation serial ports

II. Core Hardware Specifications

Compatible Platforms: Rockwell CompactLogix (L20/L30/L35/L43/L45 etc.), MicroLogix 1500 LRP

Incompatible: 1769-L23E-QBFC1B, 1769-L16x, 1769-L18x

Slot Occupancy: Single slot (standard 1769 size)

Backplane Power Consumption: 800mA @ 5.1VDC, 3mA @ 24VDC

Processor: 32-bit high-speed RISC CPU (independent of PLC, does not occupy main CPU resources)

Serial Port Configuration (3 ports):

CFG: RS-232 (RJ45/DB9), used for debugging / configuration / program download

PRT1 / PRT2: 2 fully isolated application serial ports

Electrical Standards: RS-232/RS-422/RS-485 software configurable

Isolation Voltage: 2.5kV photoelectric isolation

Connector: DB9 pin

Memory:

Flash: 512KB (stores C programs, configuration, firmware)

RAM: 512KB (program execution, data cache)

Data Buffer:

Input / Output Mirror: Maximum 4000 bytes / direction

User Data Area: 64KB shared RAM (PLC ↔ ADM high-speed interaction)

Status Indicators: OK, APP, ERR, PRT1, PRT2, CFG six groups of LEDs

Operating Temperature: 0°C ~ +60°C

Storage Temperature: -40°C ~ +85°C

Humidity: 5% ~ 95% (no condensation)

Anti-interference: Vibration 5g, shock 30g (running) / 50g (non-running)

Certifications: CE, UL, cURus, RoHS

III. Core Functions and Performance

1. C Language Programmable (Core Advantage)

Development Environment: Supports standard C language programming (ProSoft dedicated compiler / library)

Operating System: Real-time multi-tasking kernel (DOS 6-XL)

Independent Operation: C program is fully independent and executed on the module, not affecting PLC scanning

Algorithm Protection: Proprietary algorithms are fixed in the module Flash, preventing copying and reverse engineering

Development Support: Provides function libraries (serial port, backplane, timer, interrupt), routines, debugging tools

2. Dual Isolation Serial Port Performance

Baud Rate: 110bps ~ 115.2kbps fully configurable

Data Format: 7/8 data bits, 1/1.5/2 stop bits, odd / even / no parity

Flow Control: RTS/CTS, XON/XOFF configurable

Working Mode: Full-duplex / half-duplex, point-to-point / multi-point (RS-485)

Single Port Maximum Nodes: RS-485 supports 32 nodes, multi-slave network

3. Backplane Communication (PLC Interaction)

Data Exchange: Through 1769 backplane for high-speed data exchange with CompactLogix

Interaction Mode:

Input / Output Data Mirror (periodic)

64KB Shared Data Area (random read/write, event triggered)

Support MSG instructions, ladder diagram AOI, status / error code reporting Data throughput: Backplane data exchange < 1ms latency

4. Advanced development features

Multi-tasking: Supports multi-threaded C programs (serial port tasks, algorithm tasks, timing tasks)

Interrupts: Serial port receive/send interrupts, timing interrupts, backplane interrupts

Timers: High-precision software timers (1ms resolution)

Hot-swappable: Supports online replacement of CompactLogix rack

Power-off protection: Flash storage of programs/configurations, no data loss during power failure

Firmware upgrade: Supports online firmware update via CFG port

4. Core features and advantages

1. Highly customizable (solves non-standard problems)

Breakthrough PLC limitations: Achieve non-standard protocols, dedicated messages, encryption algorithms, and high-speed acquisition tasks that are difficult for PLCs to complete

Dual independent serial ports: Run two different protocols/devices simultaneously, with a single module solving the access of multiple devices

Independent computation: Complex mathematical operations, filtering, logical judgments do not occupy PLC scanning time

2. Industrial-grade reliability and security

2.5kV photoelectric isolation: Protect PLC and modules in strong electromagnetic environments

Independent CPU: Module failure does not affect the operation of the PLC host

Algorithm encryption: Securely固化 core intellectual property， preventing leakage

3. Seamless Rockwell integration

Single slot， backplane power supply， no additional power / wiring required

Provide Studio 5000 AOI， ladder diagram routines， configuration software

Data transparent mapping： C program variables ↔ PLC labels directly corresponding

4. Convenient development， simple maintenance

Standard C language： Engineers can quickly get started， reducing development barriers

Debugging tools： Serial port debugging， online monitoring， breakpoint debugging， log recording

Configuration backup / restoration： Quick deployment， batch copying

5. Typical application scenarios

Non-standard protocol communication： Connect to dedicated instruments， sensors， and old equipment's private serial port protocols

Algorithm encryption / decryption： Industrial data encryption transmission， security authentication， key verification

High-speed data acquisition： High-frequency sensors， high-speed counters， waveform acquisition (PLC scanning cannot keep up)

Multi-protocol gateway： Single module realizes Modbus ↔ dedicated protocols bidirectional conversion

Intellectual property protection： Core control algorithms， process formulas， solidified in the module， preventing replication

Complex mathematical operations： FFT， PID optimization， predictive control， big data filtering

Old equipment renovation： Equipment without protocol documentation， access to CompactLogix system

6. Summary

MVI69-ADM is a C language programmable universal application development module for the CompactLogix platform. With independent 32-bit CPU， dual isolated serial ports， standard C programming， 64KB high-speed shared memory， seamless backplane integration， industrial-grade reliability， and algorithm security encryption as its core advantages， it is specifically designed to solve non-standard communication， proprietary algorithms， high-speed data， and intellectual property protection requirements that cannot be achieved by PLC standard functions. It is the preferred development tool for industrial automation projects to break through technical limitations and protect core technologies.