Outputting Data and Controlling Operation through EtherNet/IP
322
FQ2 User’s Manual
Set the parameters so that the following conditions are met for the data output period and time.
• Set the timeout time in the connection settings
*1
between the PLC and Sensor so that it is longer than the measure-
ment processing time of the Sensor.
• Set the data output period so that it is longer that the GATE signal ON period and shorter than the measurement
interval of the Sensor.
• Set the GATE signal ON period so that it is longer than the cycle time of the PLC and longer than the packet interval
(RPI).
• When operating under high-load conditions, a considerable leeway is required in the measurement interval to
enable stable communications.
• On a network to which many devices are connected, performance may drop (e.g., responses may be delayed or
packets lost) or communications errors may occur when there is temporarily high traffic on the network. Test the
operation under actual conditions before you start actual operation of the system.
• If the measurement interval is short, communications errors may occur depending on the measurement processing
time of the Sensor and the settings in the PLC. Set the timeout time in the connection settings
*1
so that it is longer
than the measurement processing time of the Sensor or increase the measurement interval.
*1 These are the connection settings for tag data links. Make these settings from the Network Configurator.
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