Definitions Of Terminology - Mitsubishi Electric QJ71DN91 User Manual

DEFINITIONS OF TERMINOLOGY

Term
I/O communication function
Message communication
function
Master node
Slave node
Master/slave node
Master function
parameters
Auto configuration
Slave function parameters
Auto communication start
setting
Buffer memory
Flash ROM
Automatic refresh
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Terms used in this manual and their definitions are listed below.
Function that allows I/O (input/output) data communications between master and slave
nodes.
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).
Device that exchanges I/O data with slave nodes which are configured with the master
function parameters.
Device that exchanges I/O data with a master node.
Device that operates as a master and slave node.
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 the functions for DeviceNet of GX Works2.
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 the functions for DeviceNet of GX Works2.
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 the functions for DeviceNet of GX Works2.
Setting by which I/O communications automatically start at power-up.
Configured in sequence programs or the functions for DeviceNet of GX Works2.
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.
Memory inside the QJ71DN91, which stores parameters saved in the following buffer
memory areas:
• Master Function Parameters (Address: 01D4H to 03CF
• Slave Function Parameters (Address: 060EH, 060F
• Auto Communication Start Setting (Address: 0631
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 data transfer between the buffer memory and devices of a programmable
controller CPU.
Configured in Auto refresh setting in the functions for DeviceNet of GX Works2.
Definition
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