BACnet & Modbus Commissioning

Connect, configure, verify, and document.

FieldLink Configurator brings BACnet and Modbus field work into one guided Windows application. Discover equipment, review current settings, program CAREL card indexes from approved CSV files, change addressing, diagnose points and registers, and verify every supported write by reading it back.

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FieldLink Configurator BACnet point explorer

Current version 1.1.19

Commissioning workflows with verification built in

FieldLink starts with read-only discovery, clearly separates current and proposed values, confirms consequential changes, creates backups where supported, reconnects after addressing changes, and reads programmed values back before reporting success.

BACnet/IPBACnet MS/TPModbus RTU/TCPCAREL cardsRead-back verification

Complete feature set

Built for careful work on real equipment.

FieldLink is a commissioning aid for trained users. It improves repeatability and visibility, but it does not replace manufacturer documentation, an approved sequence of operation, authorization, or safe field practices.

Guided CAREL card setup

Three-step connect, program, and address workflow
Load FieldLink CSV or full BACset/1Tool exports
Review metadata and select only intended rows
Compare current and proposed names and descriptions
Program only changed properties or use a confirmed quick-write path
Read every written property back for verification

BACnet connections and discovery

BACnet/IP discovery on the selected Windows network adapter
Direct BACnet MS/TP through USB-to-RS485
MS/TP access through a BACnet/IP router
Read-only Find cards workflow
Working-baud auto-detection for direct MS/TP
Connection-loss detection that closes stale sessions and disables writes

BACnet point explorer

Read Present Value, Object Name, Description, and Units together
Scan a device Object List or a focused instance range
Live refresh with cached point identities
Resizable table, expanded workspace, and synchronized pop-out view
Optional expert single-property writes with confirmation
Immediate visible progress during longer MS/TP scans

Addressing with reconnect verification

Change Device Instance, MS/TP station address, and baud
Validate every numeric field and block duplicate PC/card addresses
Warm-restart request after supported changes
Rediscover the card at its new identifier
Read the new settings back before marking the change successful
Keep last verified values visible until reconnection completes

Modbus RTU and TCP diagnostics

Connect through serial RTU or network TCP
Find responding Unit IDs with read-only probes
Read Holding/Input Registers, Coils, and Discrete Inputs
Scan selected address ranges and display responding values
Standard Modbus mode for manufacturer register maps
Confirmed one-point expert writes with read-back

CAREL Modbus translation

Published CAREL configurations 1–6
Translate A, I, and D point numbers to protocol addresses
Validate profile-specific Digital, Analog, and Integer limits
Support RTU and pCOWeb Modbus TCP mappings
Label results with familiar CAREL point IDs
Show translated address before a confirmed write

Backup, reports, and maintenance

Timestamped backup before the normal programming workflow
Restore saved CSV backups for review and upload
Health test using five read-only requests
Export connection, settings, and point results
Reset only indexes selected by the loaded CSV after confirmation
Save reusable connection and card profiles without writing automatically

Safety, help, and support

Licensed operations remain disabled until activation
Online validation at startup and every six hours while open
Network-failure-only offline grace for up to seven days
In-app help for wiring, protocols, CSV workflows, recovery, and troubleshooting
Opt-in redacted diagnostic reports and improvement suggestions
Secure device deactivation and email-verified lost-key recovery

Use only with proper authorization and a maintenance plan. Always confirm the device, protocol, addresses, scaling, and equipment state before writing.

1. Choose an optionPurchase a one-device license or request one free trial.

2. Check your emailYour purchase or 14-day trial key is delivered to the address above.

3. Install and activateDownload the signed installer, open Settings → License, and enter the same email and key.