4 I/O Signal Allocation4.3 Transmitting Data4-17HW1483854HW14838544.3.3 Board Status[J71GF11-T2 board status]The first one byte (20060 to 20067 in the allocation example above) of theinput data of the J71GF11-T2 allocated to the external input signalindicates the board status of the J71GF11-T2.[The Alarm when Communications Error Occurs Using the Board Status]When the optional board detects the communication error, by using theCIO ladder and the user alarm allows to occur the alarm.The examples of the method are described in below.There are two alarms of the occurrence alarms.• IO Board operation error• IO Communication errorAs for the user alarm registration, refer to Chapter 13.7 I/O Messages andI/O Alarms on”YRC1000 OPTIONS INSTRUCTIONS FORCONCURRENT I/O” (RE-CKI-A467) for more details.When the optional board detects and alerts the error by the board statussignal, the ladder program, which raises an alarm, is created according tothe error signal.The procedures to register the alarms above as the user alarm and theladder program, which alert an alarm, are described below.Signal Contents2xxx0 to 2xxx3 Reserved for the manufacturer. The user cannot use these signals.2xxx4 The CC-Link IE Field setting status Normal: 0 Error: 1When the I/O size and remote register size do not correspond to the master, an error occursand the I/O and resister can not be sent or received.2xxx5 (Slave mode) Unavailable (Fixed to 0)2xxx6 Indicates the CC-Link IE Field communication status. Normal: 0 Error: 12xxx7 Indicates the operation status of the J71GF11-T2 board. Normal: 0 Error: 1[Alarm No.]Alarm nameSignal No.(Board status signal)Description of the alarm[9065]IO BOARD OPERATIONERROR20067(Board status signal:2xxx7)The operation status of theboard is abnormal.[9066]IO COMMUNICATIONERROR20066(Board status signal:2xxx6)The communication statusis abnormal.34/53