Prosoft-technology PS69-DPS User Manual download pdf (Page 59)

PS69-DPS ♦ CompactLogix or MicroLogix Platform Diagnostics and Troubleshooting

Profibus DP Slave Communication Module User Manual

ProSoft Technology, Inc. Page 59 of 108

May 9, 2014

Behavior

Significance

Typical Reason

Help

MicroLogix

Fault LED is flashing Red

No communication with the

PS69 module (or other

modules)

Modules slot number in

RSLogix program does not

match with the physical slot

of the module

Configured Vendor ID /

Module ID / Input / Output /

Configuration array size is

wrong

Check modules slot number

in RSLogix project

Compare configured Input /

Output size / Vendor ID

/Module ID with required

values

PS69-DPS

COM LED is off SYS LED

Flashing irregular green

Configuration missing or

faulty

No configuration or faulty

stored

Check initialization values of

the configuration array

Check the value "LastError"

in SlaveStatusField to

determine the error reason

Watchdog expired

Watchdog value in

configuration is smaller then

RPI (Requested

PackedIntervall)

Increase Watchdog value in

configuration array

Module has to be reset

PS69-DPS

COM LED is off and SYS

LED flashing cyclic fast

green

Application is not ready

PLC is not in RUN Mode.

PLC application has set the

NRDY bit.

PLC has no I/O

communication with the

module

Bring PLC into RUN Mode.

Check that the PLC

application has deleted the

NRDY bit.

Check PLC’s I/O LED

Master and Slave

Configuration mismatch

The configuration of the

master which wants to

communicate with the

module don't match to the

configuration of the slave

module

Use the ExtStaInfo in

SlaveStatusField to compare

what the expected

configuration is from the

master and the modules

configuration

Network problem

No physical network

connection

No master present who

wants to communicate

Check if the slave module is

properly connected to the

PROFIBUS Network

Check if bus activity can be

detected in "IrqCounter" in

SlaveStatusField

Check if a master is present

who wants to communicate

to the module and check if

the slave address is correct

Master output data can not

be found in RSLogix

program

Input array mismatch

Configured input size in

RSLogix too small

Check if the configured input

size in RSLogix covers the

mandatory size of 136 byte

status data plus the size of

the outputs configured.

Inputs are not transferred to

Master although PROFIBUS

is running

Output array mismatch

Configured output size in

RSLogix too small

Check if the configured

output size in RSLogix

covers the mandatory size of

4 byte status data plus the

configured PROFIBUS input

data

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Prosoft-technology PS69-DPS User Manual Page 59

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