KEYENCE CB-EP100 - Manual (Page 28)

- EtherNet/IP Network Unit CB-EP100 User’s Manual (LJ-V7000 Edition) -
3-2 CB-EP100 EtherNet/IP Communication Function
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„ Cyclic communication
This function sends and receives data between the scanner and CB-EP100 at the set
RPI (Requested Packet Interval). Measurement values, judgment results and error
status of measuring instrument can be transferred without the use of a ladder
program.
Configurations such as RPI and data size for cyclic communication are set
on the scanner side.
In a network which has many connected devices, including EtherNet/IP
devices, a delay or packet loss could occur if a large load is constantly or
temporarily applied on the network. Verify the settings carefully before
operation.
„ Message communication
Message communication can be used for applications which do not require a
punctuality like cyclic communication.
Various functions can be processed via message communication,such as reading or
writing data which can be exchanged with cyclic communication, reading measuring
instrument profiles, reading and writing measurement settings, and execute other
functions unique to measuring instrument.
PLC EtherNet/IP scanner
RPI=3 (ms)* RPI=0.5 (ms)*
RPI=5 (ms)*
RPI=10 (ms)*
Various EtherNet/IP adaptors
Ethernet
* RPI (Requested Packet Interval) can be set
individually for each connection.
Point