ProSoft Technology PTQ-AFC User Manual
Page 202
Diagnostics and Troubleshooting
PTQ-AFC ♦ Modicon Quantum Platform
User Manual
Liquid and Gas Flow Computer for Hydrocarbon Products
Page 202 of 259
ProSoft Technology, Inc.
June 23, 2011
10.1 User
LEDs
There are two "user" LEDs used to indicate overall module status; App Stat and
Active (with Cfg, Prt2, or P3).
10.1.1 App Stat LED
State
Description
Rapid Blinking
The processor is offline (probably in program mode).
Steady On
Some meter is indicating an alarm or no meters are enabled.
Off
The module is functioning properly.
10.1.2 Cfg, Prt2 or Prt3
These LEDs indicate current Modbus traffic on any port.
State
Description
On
A Modbus command for the module is recognized. On Port 3, this LED may also
indicate that a Modbus Master command was sent.
Off No
Activity