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# PLC_Conversion_Estimate_P1-550.pdf
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## Summary
This file contains a detailed engineering estimate for converting a PLC program from an Allen-Bradley MicroLogix 1400 to an AutomationDirect Productivity P1-550 platform. It breaks down the estimated hours required for translating various control routines such as motor control, washer sequencing, timer management, fault handling, and I/O mapping. The document focuses on the programming effort needed for the PLC conversion without including commissioning or hardware setup.
## Content
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PLC Program Conversion Estimate
Source Platform: Allen-Bradley MicroLogix 1400 (RSLogix 500)
Target Platform: AutomationDirect Productivity P1-550
Total Estimated Engineering Effort: 40 Hours
Initial Setup and Preparation – 3.0 Hours
Project scaffolding within Productivity Suite, I/O configuration, tag structure creation, and legacy file-based
address mapping strategy.
MAIN Routine – 4.0 Hours
Top-level scan orchestration, subroutine structure recreation, global status handling, and first-scan
initialization behavior translation.
INPUTS Routine – 2.5 Hours
Physical input mapping to internal tags, conditioning logic, and ensuring deterministic scan behavior
consistent with the original system.
MOTORS Routine – 1.5 Hours
Recreation of motor start/stop interlocks and run-state logic within the Productivity tag-based architecture.
TIMER_PRESET Routine – 2.5 Hours
Conversion of timer preset management from integer file structure to Productivity timer instructions and
tag-based HMI-adjustable setpoints.
WASH_LOAD Routine – 4.5 Hours
Sequenced washer load logic including step progression, dwell timing, permissives, and translation of state
bits to structured tags.
WASH_CNTRL Routine – 7.5 Hours
Primary washer sequencing logic including counters, multiple timers, state transitions, and manual/automatic
branching. This routine carries the highest logic density and sequencing complexity.
FILLER_CAP Routine – 4.5 Hours
Filler and capper sequencing logic including timer windows, solenoid control, debounce logic, and interlocked
permissive handling.
RTC_CLOCK Routine – 1.0 Hour
Recreation of real-time clock interaction using Productivity Suite RTC functions and tag-based data handling.
WARNINGS Routine – 3.5 Hours
Warning condition detection, timing filters, and mapping to alarm/status tags in the new architecture.
FAULTS Routine – 3.5 Hours
Fault aggregation, latching, reset logic, and system fault state translation to ensure deterministic recovery
behavior.
OUTPUTS Routine – 2.0 Hours
Output mapping to physical I/O modules, final permissive logic, and verification of fault inhibits within
Productivity hardware.
Notes and Assumptions
• Estimate reflects translation effort only and does not include process redesign.
• Includes offline development and internal validation.
• Commissioning and on-site startup are excluded.
• Final effort may vary based on hardware configuration, remote I/O layout, and alarm/HMI integration
requirements.
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