Each KeyCode is valid for one computer. SerialMon requires occasional Internet connection for activation. You can deactivate on one computer to move the license to another. Trial licenses are available for 7 days with some limitations.

In Preferences → Triggers, configure serial port pins (DCD, DSR, CTS, RI, DTR, RTS) to monitor additional signals. You can track rising/falling edges and measure timing between data changes and telegram transmission.

Events list all signal value changes chronologically. Alarms track binary signals that go to '1' and remain in the list until acknowledged. Both features are great for end-to-end signal testing and verifying communication to control centers.

Monitor mode: Passively listens to communication between devices.
Control Center mode: SerialMon acts as a master/controlling station.
IED mode: SerialMon acts as a slave/controlled station, simulating field devices.

SerialMon supports various connection types: direct cables, unidirectional/bidirectional line monitors, and in-the-middle connections. For RS485/RS422, you'll need appropriate adapters. We recommend quality FTDI USB-to-RS232 adapters like the FTDI US232R-100.

SerialMon is a multiprotocol sniffer/analyzer for serial & network communication. It's designed for troubleshooting gateway/RTU communication, signal testing to control centers, and verifying communication protocols in industrial automation systems.

Yes! SerialMon supports Stratus Engineering passive tap modules (EZ-Tap Pro for RS232, Versa-Tap for RS232/RS422/RS485). These USB devices provide hardware timestamping and auto-detection of baud rate, data bits, and parity.

Statistics window shows packet counts and bytes categorized by direction, packet type, or slave address. Charts display bytes or packets per second/minute over time. Categories vary by protocol - perfect for analyzing communication patterns.

Address Tracking monitors signal values over time, showing history, changes, polling frequency, and quality information. You can add user-defined names, check deadband settings, and verify signal configuration during General Interrogation (GI).

Use the Address Tracker window and go to File → Import signal list. SerialMon supports CSV files, ABB RTU560 XLSX files, ABB PCU400 XML files, ABB MicroSCADA ASC files, and Svenska kraftnät OF-reg standard files.

Device Scanner passively listens to network traffic to detect IP addresses, hostnames, MAC addresses, and device manufacturers. It's useful when you're unsure about device IP addresses. Requires WinPCAP installation.

In Address Tracker, select a signal and go to the User-defined tab. Check 'Scale' and set min/max values. For ABB RP570, configure AVM scaling range (±2000, ±2047, or -2048 to +2047) in Protocol settings.