Rockwell-automation 1771-SPI,D17716.5.122 SPI PROTOCOL INTERFACE Manuel d'utilisateur télécharger pdf (Page 54)

Interpreting Diagnostic Information

In LEDs and Error Codes

Chapter 5

5-4

No

B

Look at

different LED. Is:

If MF is OFF and CA is ON or flashing,

communication to devices is OK.

Has target device

communicated before

on the network?

No

At the device, check:

- communication rate setting

- device address setting

- zone address setting

They must match MCC.

Check wiring.

Yes

SPI module is not receiving

from a device. Look up

8000 series error codes

in CDS word 3.

MODULE

FAULT

= Flashing

Yes

Check device:

- wiring for disconnect

- that it is turned ON

- configuration in CCB, again

Do you observe?

MODULE

FAULT

=

Flashing

or ON

No

Communication is OK.

Replace target device.

SPI module is

configured if:

MODULE

ACTIVE

=ON

Yes

If data returned from a device is zero,

check device configuration in CCB.

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