CLICK PLC Modbus Pressure Sensor Setup

I am looking for an experienced PLC programmer to update an existing ladder logic program for a CLICK Automation PLC (C2-01CPU).

The main task is to integrate two Modbus RTU pressure sensors via RS-485 and ensure reliable communication, proper scaling, and clean integration into the existing control logic.

Sensor Details
Model: ESI-TEC GS4400 / GS4500
Interface: RS-485
Protocol: Modbus RTU
Scope of Work
Review the existing CLICK PLC ladder logic program
Configure Modbus RTU communication for 2 sensors
Set up polling and register mapping
Scale raw Modbus values into pressure readings
Store values in appropriate PLC registers
Update ladder logic for control, alarms, and interlocks
Assist with communication settings (baud rate, node ID, parity, etc.)
Support testing and troubleshooting until readings are stable
System Details
PLC: CLICK Automation C2-01CPU
Programming: Ladder Logic
Communication: Modbus RTU over RS-485

Full project files will be shared with the selected freelancer.

Requirements
Strong experience with CLICK PLCs
Solid knowledge of Modbus RTU / RS-485
Experience integrating sensors (pressure transmitters preferred)
Ability to modify and document ladder logic clearly
Good troubleshooting skills
Preferred (Nice to Have)
Experience with AutomationDirect CLICK software
Serial communication debugging experience
Experience with scaling, register mapping, and alarm logic
Deliverables
Updated PLC program
Summary of changes made
Register map / notes for both sensors
Basic testing support to confirm correct readings
To Apply, Please Include
Relevant PLC / Modbus experience
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