Rockwell Automation 1747-ACNR15 ControlNet Adapter Module User Manual - Manual (Page 19)

Publication 1747-UM003A-EN-P
Installing Your ControlNet Adapter Module 2-7
Powerup Sequence There are three health indicators on the module. The LED on the right
(labeled “OK”) is the generic module health indicator. The LED in the middle
(labeled “A”) is the health indicator of cable A. On the 1747-ACNR15, the
LED on the left (labeled “B”) is the health indicator for cable B. In addition,
the alphanumeric display can display module status. The following describes
the normal power-up sequence for the adapter module. (Refer
to Troubleshooting With the Status Indicators and Status Display on page 5-1
and ControlNet Status Indicators on page 5-3 for explanation of the LED’s
and alphanumeric display.)
1. Apply power to the chassis - notice that all three health indicators should
be off and the status window indicates “POST” (Power On Self Test).
2. After “POST”, the status window displays the sequence “0000”, “1111”,
“2222”, through “9999”. During this time, the A and B LEDs are off
and the OK LED toggles between red and green; this happens so fast,
the OK LED appears amber.
3. The series and revision levels are then displayed in the status window. A
series A revision level B module would display “A/B”. During this time,
the A and B LEDs are off and the OK LED toggles between red and
green; this happens so fast, the OK LED appears amber.
4. After the operating system is loaded and initialized, the status window
and the LEDs indicate the status of the module and its connections to
the cable(s). If the module address is not zero and a valid ControlNet
connection is made to either channel A or B, the status window toggles
between “ACTV” (Active) and the module node address (“A#02”, node
address number 2). If there are no active connectors, the status window
displays “IDLE”.
5. If there is a hardware problem of any kind, the health LED turns red and
the status window toggles between “FATL” and up to four alphanumeric
characters. The “FATL” indicates that there was a fatal error and the
characters indicate what the error is.
For detailed information on planning and installing your ControlNet system,
refer to Related Publication on page P-1.
ADDRESS/STATUS
B A OK
Status
Health Indicators
Channel A and B
indicators