Data Output - Omron SYSMAC FH Series User Manual

(5) The BUSY signal is turned OFF when the measurement flow is completed.
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Data Output

This section describes the ON/OFF timing for signals related to measurement data output after meas-
urement completion using the following timing chart.
l Without handshaking
Response Area
Data Output Area
*1, *2: Data is output at the set output period
After the data is output, the GATE signal is turned ON and the data is held for the data output time.
(1) The Sensor Controller outputs data when the Fieldbus Data Output Unit starts execution.
(2) Data is output each time that the Fieldbus Data Output Unit is performed for the second time or oth-
er Fieldbus Data Output Unit is performed. In that time, the output data for the first time is overwrit-
ten.
Precautions for Correct Use
• To receive all the output data, set Output control to Handshaking, and then output data.
For details, refer to Setting the PROFINET Output Specifications on page 2 - 273, and Output
Format (Fieldbus Data Output) on page 2 - 217)
• If any part of data is missing on the PLC side, or the GATE signal is not output from the Sen-
sor Controller of the FH series, set Measurement priority to Lower the priority of the
measurement process.. Note that the measurement time becomes longer with this setting.
For details, refer to Setting the Status at Startup [Startup Settings] in the Vision System
FH/FHV Series User's Manual (Cat. No. Z365).
l With handshaking
The Result Completion (GATE) signal switches from OFF to ON when the PLC (user) switches the
Result Set Request (DSA) signal from OFF to ON.
At that time, data that is possible to output will be output.
The PLC (user) switches the DSA signal from ON to OFF under the conditions whether it has re-
ceived the output data and the Result Completion (GATE) signal has been turned ON.
In the case where multiple Fieldbus Data Output Units perform the data output, the PLC (user)
turns the Data Output Request (DSA) signal ON again to instruct it to output the following data,
when the Sensor Controller switched the Data Output Completion (GATE) signal from ON to OFF.
FH/FHV Series Vision System User's manual for Communication Settings (Z342-E1)
2 Methods for Connecting and Communicating with External Devices
ON
Result Completion
(GATE) signal
OFF
ON
Output data 0 to 7
(DATA0 to DATA7)
OFF
*1
and for the set output time.
Fieldbus Data Output Fieldbus Data Output
Unit execution Unit execution
(*1)
(*2)
First

data output

(1) (2)
*2
*1
Second
data output
The data is overwritten by
the second data output.
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