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MELSEC-Q
3 SPECIFICATIONS
(3) I/O Communicating : X01, I/O Communication Request: Y11 (when
the slave function is used)
These signals are used to start the I/O communication of the slave function with
the number of I/O points that is set by the "setting area of the number of slave
function reception bytes" and the "setting area of the number of slave function
transmission bytes" of the buffer memory.
Use these signals while the module ready (X0F) is ON.
(a) To start the I/O communication, use the sequence program to turn ON the
I/O communication request (Y11).
(b) When the I/O communication request (Y11) is turned ON, the parameter
check is executed. If the parameter check is successful, the I/O
communication starts and the I/O communicating (X01) is turned ON. If the
parameter check fails, the slave function for error set signal (X08) is turned
ON and the ERR. LED is lit. Check the contents of the error with the "error
information for the slave function" of the buffer memory address 601
H
.
(c) To stop the I/O communication, use the sequence program to turn OFF the
I/O communication request (Y11).
(d) The I/O communication stops and the I/O communicating (X01) is turned
OFF.
When the parameter check is successful:
Module Ready (X0F)
I/O Communication
Request (Y11)
I/O Communicating (X01)
Parameter
check
When the parameter check fails:
I/O communicating (X01)
I/O Communication Request
(Y11)
Module Ready (X0F)
Parameter
check
Slave Function For Error Set
Signal (X08)