Rockwell Automation 1771-SPI,D17716.5.122 SPI PROTOCOL INTERFACE - Manual (Page 51)

MODULE
CHANNEL
MODULE
FAULT
ACTIVE
ACTIVE
NJ
NJ
NJ
When this LED:
Chapter
5
5-1
Interpreting Diagnostic Information
from LEDs and Error Codes
This chapter helps you troubleshoot the SPI module using:
diagnostic indicators on the front of the module
diagnostic codes returned by the SPI module
Diagnostic indicators (Figure 5.1) and (Table 5.A) indicate the SPI
module’s operating status. Use them to troubleshoot your module.
Figure 5.1
How to Read Individual LED Indicators
Is: The SPI Module Has Detected the Following: Take this Corrective Action:
Flashing SPI module is not receiving from a device Refer to 8000 series error codes in CDS.
ON an invalid MCC Refer to 9000 series error codes in SYS.
module failure Replace SPI module.
OFF none of the above See other LEDs.
ON or Flash SPI module is sending data on the SPI network n/a
OFF SPI module is not sending data on the network See other LEDs.
Flashing SPI module is powered but not configured Download a valid MCC to SPI module.
ON SPI module is configured n/a
OFF SPI module is not powered or is bad Apply power or replace SPI module.
Table 5.A
Troubleshooting with LED Indicators
Indicator: Possible Cause: Possible Correction: See Flow Chart at:
MF = Red = OFF
CA = Yellow = ON or FLASH
MA = Green = ON
Module is operating correctly:
powered and communicating
on the SPI network.
n/a
MF = Red = ON or OFF
CA = Yellow = OFF
MA = Green = OFF
RAM or PROM failure, or
module is not powered.
Turn off power. ReĆseat the module in the chassis.
ReĆpower. If problem persists, replace SPI module. n/a
MF = Red = OFF
CA = Yellow = OFF
MA = Green = FLASHING
Module is powered but not configured. Download a valid MCC to the SPI module. A
MF = Red = ON
CA = Yellow = any
MA = Green = FLASHING
Valid MCC not yet loaded into module,
or valid MCC in module was corrupted.
Correct and download a valid MCC
to the SPI module.
A
MF = Red = FLASHING
CA = Yellow = ON or FLASH
MA = Green = ON
Module is not receiving from a device.
Communication OK with other devices.
Check field wiring arm connections.
Check D-shell connectors on primary machine.
Check that device settings match MCC entries.
B
Chapter Objectives
Troubleshooting with
Diagnostic Indicators