Mitsubishi Electric QJ71DN91, Руководство пользователя

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DEFINITIONS OF TERMINOLOGY
Terms used in this manual and their definitions are listed below.
Term Definition
I/O communication function
Function that allows I/O (input/output) data communications between master and slave
nodes.
Message communication
function
Function that allows reading or writing of slave node’s attribute data in response to a
request message. For further details, refer to the DeviceNet common service in the
DeviceNet Specifications (Release2.0).
Master node
Device that exchanges I/O data with slave nodes which are configured with the master
function parameters.
Slave node
Device that exchanges I/O data with a master node.
Master/slave node
Device that operates as a master and slave node.
Master function
parameters
Parameters for setting information such as connection type or I/O points, which are used to
exchange I/O data with respective slave nodes when the QJ71DN91 is used as a master
node.
Configured in sequence programs or GX Configurator-DN.
Auto configuration
Function that detects slave nodes on the network and automatically creates master function
parameters.
Two options are available: "All configuration" used for detecting all slave nodes on the
network and "Add configuration" used for detecting the slave nodes added to the network.
This function can reduce programming steps for master function parameter setting.
Executed in sequence programs or GX Configurator-DN.
Slave function parameters
Parameters provided for changing the number of I/O points for a slave node when the
QJ71DN91 is used as a slave node.
Configured in sequence programs or GX Configurator-DN.
Auto communication start
setting
Setting by which I/O communications automatically start at power-up.
Configured in sequence programs or GX Configurator-DN.
Buffer memory
Memory inside the QJ71DN91, in which data are temporarily stored.
Used for storing parameter settings and I/O data.
Parameters are stored on a flash ROM after debugging.
I/O data are transferred to devices of a programmable controller CPU by automatic refresh
or sequence program.
Flash ROM
Memory inside the QJ71DN91, which stores parameters saved in the following buffer
memory areas:
• Master Function Parameters (Address: 01D4H to 03CF
H
)
• Slave Function Parameters (Address: 060EH, 060F
H
)
• Auto Communication Start Setting (Address: 0631
H
)
Parameters saved on the flash ROM are automatically loaded to the buffer memory when
power is turned on from off or when the CPU module is reset.
Automatic refresh
Automatic data transfer between the buffer memory and devices of a programmable
controller CPU.
Configured in Auto refresh setting in GX Configurator-DN.