Ethernet (FieldBus) Controller or Coupler Troubleshooting

Use the following tables and the LEDs on the FieldBus devices in the in/out positioner scanner junction box and in/out positioner / reciprocator control panels for assistance in troubleshooting them. Unless instructed otherwise, contact Nordson Finishing Technical Support for assistance.

FieldBus Status

LED

Meaning

Troubleshooting

ON

 

Green

Fieldbus initialization is correct.

 

Off

Fieldbus initialization is not correct, no function or self test.

Check the supply voltage (24V and 0V), check the IP configuration.

LINK

 

Green

Link to the remote I/O network exists.

 

Off

No link to the remote I/O network.

Check Ethernet connections and cables.

TxD/RxD

 

Green

Data exchange taking place.

 

Off

No data exchange.

Make sure the iControl console is powered on.

Make sure the remote node has been configured by checking the Network Status screen and Node Configuration screen.

Check the iControl Alarm screen for remote node fault messages.

ERROR

 

Red

Error on the fieldbus.

 

Off

No error, normal operation.

 

Node Status

LED

Meaning

Troubleshooting

I/O

 

Green

Fieldbus device operating normally.

 

Red

During startup: Internal bus being initialized, LED flashes fast for 1-2 seconds.

 

Red

After startup: Three consecutive flashing sequences with pauses between each indicate errors.

Refer to the fault codes, arguments, and description in I/O Errors.

Orange

Failure of input or output module connected to controller.

Check I/O modules, replace if necessary.

Voltage LEDs

The two green LEDs in the FieldBus supply section display the supply voltage. The (A) LED indicates the 24 V supply; the (B) LED indicates the supply to the field side (power jumper contacts).

LED

Meaning

Troubleshooting

A

 

Green

Operating voltage exists.

 

Off

No operating voltage.

Check the supply voltage (24 V and 0 V)

B

 

Green

Operating voltage for power jumper contacts exists.

 

Off

No operating voltage for power jumper contacts.

Check the supply voltage (24 V and 0 V)

I/O Errors

If a fault is detected, the I/O LED blinks in three consecutive flash sequences: first a series of short flashes, then a pause, then the Fault Code number, another pause, then the Fault Argument.

Fault Argument

Fault Description

Fault Code 1: Hardware and configuration fault

0

EEPROM check sum fault/check sum fault in the parameter area of the flash memory.

1

Overflow of the internal buffer memory for the inline code.

2

Unknown data type.

3

Module type of the flash program memory could not be determined/is incorrect.

4

Fault when writing in the flash memory.

5

Fault when deleting in the flash memory.

6

Changed I/O module configuration determined after autoreset.

Fault Code 2: Fault in the programmed configuration

0

Incorrect table entry.

Fault Code 3: Internal bus command fault

0

No error argument.

Fault Code 4: Internal bus data fault

0

Data fault on internal bus or internal bus interruption on coupler.

n* (n>0)

Internal bus interrupted after I/O module n.

Fault Code 5: Fault during register communication

n*

Internal bus fault during register communication after I/O module n.

Fault Code 6: FieldBus specific error

1

No reply from the BootP server.

2

Ethernet controller not recognized.

3

Invalid MAC ID.

4

TCP/IP initialization error.

Fault Code 7: I/O module not supported

n*

I/O module at position n is not supported.

Fault Code 8: Not used

Fault Code 9: CPU-TRAP error

1

Illegal opcode.

2

Stack overflow.

3

Stack underflow.

4

NMI