Troubleshooting The Control I/O Module - Black Box CRCW-12 User Manual

Chapter 4: E2 Controller
4.8 Troubleshooting the Control I/O Module Signal LEDs
The E2 control I/O module includes three signal LEDs (red, yellow, and green) that provide information on the operation of the
control module and status of the connection to the pLAN. These signal LEDs are positioned adjacent to the yellow "Power On"
LED (see Figure 4-2). The signal LEDs may be used for diagnostic purposes if a problem arises with the controller.
Key: LED off
Red LED Yellow LED
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Table 4-26. I/O control module signal LEDs.
Green LED Description
Application with error or no pLAN table.
Application with error or no pLAN table. Controller connected to ONLY one terminal.
Application with correct pLAN table.
Correct operation in pLAN.
Awaiting communication with WinLoad (factory configuration software). Check address.
(LED flashing alternately) Communication with WinLoad not valid. No power supply or wrong
driver.
/ /
Communicating with WinLoad (in low-level operation).
Communication with WinLoad on hold.
WinLoad not suitable or incorrect software protection password.
Communicating with WinLoad (in normal operation).
Controller supervisor protocol (slave) active on serial 0.
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LED on LED flashing