11 troubleshooting – IAI America PCON-CFA User Manual

Page 259

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5. SCON-CA

CC-Link

253

5.11 Troubleshooting

5.11.1 Status LED Indication

With the Status LED (STATUS 0/1) on the front surface of the board, the CC-Link board operation status and
network status can be obtained.
When any trouble occurs, confirm the current status with the Status LED illumination patterns. The
communication status indications changed with the Status LED illumination patterns are described as follows.

: Illuminating, 㬍 : OFF, 䃩 : Flashing

STATUS 1 STATUS 0

Status Signal

Impossible condition

x

An error occurs. (CRC error, station No. setting error or communication speed

setting error)

x

Time period from power injection or software reset to CC-Link initialization

completion

Normal Communication Status

Power Failure: Remote station power unit breakdown or communication cable
breakage

Impossible condition

Station No. setting or communication speed setting is changed during the
communication.

5.11.2 Alarm Description and Cause/Treatment

When an alarm is issued, the completed position No. (4 bits for PM1 to PM8) shows the simplified alarm code
in the Remote I/O Mode or Remote I/O Mode 2.
In the Position/Simplified Direct Value Mode, the simplified alarm code is output to RWr2.
In the Half Direct Value Mode or Full Direct Value Mode, the alarm code is output to RWr6.
1) Confirm the alarm code using the PLC's monitor function, etc., or using the status monitor, connecting the

teaching tool such as the personal computer applicable software for RC.

2) Based on the read alarm code, search the alarm description list in the instruction manual for the controller.
3) Deal with it based on the description for the alarm code in question.

For the following alarm code, deal with it according to the following table.

Code

Error Name

ID

(*1)

RES

(*2)

Cause/Treatment

0F2 Field Bus Module Error

05

Cause: The field bus module error is detected.
Treatment: Confirm the parameter.

0F3 Field Bus Module Detection Error

04

Cause: The module can not be detected.
Treatment: Turn ON the power again. If the error is

not removed, contact our company.

(*1) ID o Simplified Alarm Code
(*2) RES o Alarm Reset Enable/Disable, 䂾: Alarm Reset Enable/㬍: Alarm Reset Disable

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