Omron ZW-C1*AT, User Manual

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EtherCAT Connection ZW User's Manual
163
6
Commun
ication
s with Exte
rnal De
vi
ces
●
Output of displacement sensor measurement data to output area
The measurement data of all tasks is automatically output from the displacement sensor to I/O port
Measurement Value of Task 1 to 4 immediately after the measured value is applied.
This enables the measurement results of all tasks to be easily handed over to the Controller.
With EtherCAT communications, communications is performed via the I/O ports of the following four area on
the Controller. Sysmac error status area I/O ports are used only when an NJ series CPU unit is connected as
the master.
Control by control/
status signals (1) I/O ports of instruction
area
I/O ports to which the user writes control signals to be
executed on the displacement sensor and control com-
mands
(2) I/O ports of response
area
I/O ports to which the displacement sensor writes the
control signals written to the instruction area and the
result of executing control commands
Data output after applica-
tion of measured value (3) I/O ports of output area I/O ports to which the displacement sensor writes the out-
put data accompanying measurement after application of
the measured value
For error status (4) I/O ports of Sysmac
error status area
I/O ports to which the displacement sensor writes the
error status
Controller (master) Displacement sensor
(sla v e)
I/O ports
N J-series CPU Unit
EtherCAT comm u nications
O u tp u t area
After applying
meas
u red v al u e
Data
A u tomatically o u tp u t
the meas u red data of
4 tasks