Rockwell-automation 57C435 Processor Module, AutoMax Bedienungsanleitung PDF herunterladen (Seite 29)

5Ć3

on the battery holder. If none of the above actions correct the

problem, replace the battery.

5.3 BUS ERROR

Problem: Codes 31" or 50" through 58" appear on the Processor

module's LEDs. These codes signify that a bus error occurred when

the system attempted to access an I/O module. The possible causes

of this error are the following: a missing module, a module in the

wrong slot, or a malfunctioning module. It is also possible that the

user has attempted to write to the wrong registers on a module

through an application task. Use the following procedure to isolate a

bus error:

Step 1. Determine where the bus error occurred.

Connect the personal computer to the rack and run the

ReSource AutoMax Programming Executive. Display the

error log for the Processor that indicates the error. The

error log should indicate the address that caused the bus

error or a line number in a BASIC or Control Block

application task. The address will be displayed in

hexadecimal notation. To decode the address, follow the

directions below.

a. To determine the slot number where the bus error

occurred, convert the hex address into a bit pattern

and decode in decimal notation as follows:

Most Significant 16 Bits

31 30 29 28 27 26 25 24 22 21 20 19 18 17 1623

00 0010

BYTE

BIT #

THIS RACK

SLOT #

0 = Forced

1 = Unforced

BIT

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 59 60

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Rockwell-automation 57C435 Processor Module, AutoMax Bedienungsanleitung Seite 29