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(3) External signal assignment function
Remote input signals or remote output signals of the D/A converter module can be assigned to I/O signals of the
connected extension I/O module. Signals can be input from the extension I/O module and error signals can be
output to the external at the fixed timing without influence from the sequence scan or link scan.
(a) Operation of the external signal assignment function
Ex.
When Alert output signal (RX1E) of the D/A converter module is assigned to RY2A of the extension
output module
When a remote input signal of the main module is assigned to a remote output signal of the extension output module, the
assigned remote output signal cannot be turned on/off or monitored using the program. Turn on/off or monitor the remote
input signal before assignment of the main module. (In the above example, turn on/off or monitor Alert output signal (RX1E).)
Target remote I/O signals of external signal
assignment
Area to be set
Trigger output request (RY19) "Trigger output signal assignment"
Alert output signal (RX1E) "Alert output signal assignment"
Error flag (RXA) "Error flag assignment"
Warning flag (RX7) "Warning flag assignment"
D/A converter module Extension output module
Direction of data flow
The lamp (external device) connected to
the extension output module turns on.
RX1E RY2A
Warning
output signal
Lamp
(external device)
Controlled by the D/A converter module
Alert output signal (RX1E)
Assign using the external
signal assignment function.
RY2A
(extension output module)
lamp (external device) OFFONOFF
OFF
ON
OFF
OFF
ON
OFF