Inovance H3U Series - Page 629

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9 Communication9.6.3 CANlink Software Conguration
● Synchronous Write conguration for the master station
When the trigger condition (M) is set, the Synchronous Send conguration for the master station takes
effect. You can select different trigger conditions (M) to display, add, modify, or delete synchronization
congurations. Synchronization conguration is applicable to scenarios in which an operation needs to be
initiated synchronously.
As shown in the gure, when M1 = 1, the master station sends the three conguration items successively.
Upon receipt of the items, slave stations store them in the buffer. After the last data entry is sent, the master
station automatically sends a conguration application command. Upon receipt of the command, all slave
stations automatically write the data in the buffer in corresponding elements or parameter numbers. As
shown in the gure, PLC 10 writes the D10 value in D10, servo 20 writes the D20 value in H200, and AC
drive 30 writes the D30 value in HF003. All these values are synchronously written when slave stations
receive the conguration application command. After the command is sent, the master station automatically
resets the trigger element M1. Edge trigger instructions must be used to operate M elements; otherwise,
the network load will be excessive.
• Trigger condition (M): Each trigger condition associates a maximum of 16 conguration items. It determines
whether the associated synchronization conguration is valid. A maximum of eight trigger conditions (M) are
allowed. You can select a trigger condition in the drop-down box. During synchronization conguration of a 32-bit
servo register, data must correspond to upper 16 bits and lower 16 bits respectively for the same trigger element.
That is, two data entries must be written for one trigger element, one corresponding to upper address bits of the
32-bit parameter number, and the other corresponding to lower address bits. If only one entry is written or two
entries are written for two trigger elements respectively, the servo will return an error, and the conguration cannot
continue.
● Example of 32-bit servo register synchronization conguration
As shown in the following gure, H1112 is a 32-bit parameter number of the servo. During conguration of
the parameter number, two data entries must be written, corresponding to upper and lower address bits
respectively. When M3 is set, the master station writes D201 and D202 values in H1112. When all of the
ve data entries are sent, the master station sends a command to enable the slave stations and apply the
congurations. Then M3 is automatically reset.