2 EtherNet/IP Communication (Adapter)
KW2D Series Smart RFID Reader User’s Manual
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Input Only
This CIP connection cyclically transmits data from the target to the originator (1). The CIP connection point is specified
as an instance ID. Communication is performed at the cycle (RPI) specified when the CIP connection is opened. In
order for the target to perform alive monitoring of the originator, a heartbeat that does not include data is cyclically
transmitted from the originator to the target. The originator specifies the Input Only instance ID (198) on the target as
the destination for the heartbeat. The heartbeat is transmitted at the specified cycle (RPI).
•
For Input Only, please set the heartbeat of the CIP connectionpoint as an instance ID too.
•
The heartbeat is always performed in Input Only.
I/O message communication (1)
Instance ID: 200
CIP connection points
Instance ID: 100
Heartbeat
Originator
(Host device)
Target
(KW2D Series Smart RFID Reader)
(When starting communication)
Request to open CIP connection
Response
(During communication)
CIP Connection
Regular cycle
Regular cycle
