Main Status (Red and Green LEDs)

The following patterns are shown on the main Green and Red Status LEDs of Tibbo Modbus Gateways.

Patterns of the Modbus Gateway App

Obtaining the IP address via DHCP:

LED_dhcp

(one green flash and pause)

The system is idle:

LED_idle

(two green flashes and pause)

A TCP connection is being establishes:

LED_opening_tcp

(three green flashes and pause)

At least one TCP connection in progress but no data is being transmitted through the Gateway:

LED_tcp_conn

(green on)

At least one TCP connection in progress and data is being transmitted through the Gateway:

LED_tcp_conn_and_data

(green mostly on and turns off momentarily when data is being transmitted)

No TCP connection is in progress and data is being transmitted through the Gateway (for example, between two serial ports):

LED_no_tcp_conn_but_have_data

(green mostly off and turns on momentarily when data is being transmitted)

The app has encountered a setting error (restore all settings to their default values by using the Initialize button of the DS Manager):

LED_setting error

(red blinking slowly)

Buffer overrun:

LED_overrun

(red on)

Additional Patterns

These patterns are not directly related to the Modbus Gateway app. Rather, they appear when the app is not loaded, corrupted, or isn't running:

No app is loaded:

LED_tios_not_loaded

(green and red blinking fast)

No app is loaded:

LED_app_not_loaded

(red blinking fast)

The app is not running:

LED_app_not_running

(green blinking fast)