KEYENCE IV Series - Manual (Page 60)

5-2 - IV Series User’s Manual (Field Network) -
Overview of the data I/O communication
Overview of the data I/O communication
What is data I/O communication?
This function enables cyclic (i.e. in fixed intervals) data communications with the PROFINET devices. This
function provides high-speed control with several to several tens of milliseconds.
The communication can be controlled by referencing and updating the variables in the PLC, making it easy
to control the programs on the PLC side.
PROFINET
communication
I/O Controller
Input Area
y Status result
y Control/status/error result
y Statistics information
y Tool information
Output Area
y Trigger control
y External master image
registration control
y Program switching control
y Handshake control
Output data
y Status result
y Control/status/error result
y Statistics information
y Tool information
Input data
y Trigger control
y External master image
registration control
y Program switching control
y Handshake control
SendCycle
(Communication
cycle)
y Communication settings for the data I/O communication, such as SendCycle (communication cycle) and
the data size, will be configured on the PLC side.
y In a network with many connected devices (including the PROFINET devices), a network delay and/
or packet loss may occur when there is a heavy load on the network. Conduct a thorough verification
before the operation.
5
Data I/O communication