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System B A system that is set as system B to distinguish two systems, which are connected with two tracking
cables. When the two systems start up at the same time, this system will be a standby system. System
switching does not affect the system A/B setting.
System switching A function which switches the systems between the control system and the standby system to continue
operation of the redundant system when a failure or an error occurs in the control system.
Tracking cable An optical fiber cable used to connect two redundant function modules in a redundant system.
Transient transmission group number Number that is assigned for transient transmission to any given stations.
By specifying a group of stations as transient transmission target, data can be sent to the stations of the
same group number.
UINI A generic term for the G.UINI, GP.UINI, Z.UINI, and ZP.UINI
WRITE A generic term for the JP.WRITE and GP.WRITE
ZNRD A generic term for the J.ZNRD and JP.ZNRD
ZNWR A generic term for the J.ZNWR and JP.ZNWR
Term Description
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