YASKAWA VS mini V7 User Manual

Also see for VS mini V7: Connection manual

5 Transmission Interface215.4 Application Layer SpecificationsThe data format for the application layer conforms to the MECHATROLINK-II link com-mand specifications. The SI-T/V7 has the following main commands and sub-commands.The main commands are used in both the 17-byte and 32-byte modes forMECHATROLINK-II and with MECHATROLINK-I. The sub-commands can be used onlywhen the 32-byte mode has been selected by means of pin 2 on DIP switch S1. If a conflictoccurs between a request for a main command and a request for a sub-command, the requestfor the main command is processed. If either a main command or a sub-command is alreadybeing processed, the command being processed is given priority. If an INV_CTL main com-mand and an INV_I/O sub-command conflict, the sub-command overwrites the main com-mand.For details on command formats, refer to Chapter 7 MECHATROLINK-II Commands.Table 1 Main CommandsName FunctionNOP No OperationPRM_RD Reads Parameters.PRM_WR Writes Parameters.ID_RD Reads ID numbers.CONFIG RAM Write ENTER_CODE and EEPROM WriteENTER_CODEALM_RD Reads fault and alarm.ALM_CLR Clears fault and alarm.CONNECT ConnectDISCONNECT DisconnectINV_CTL Controls Inverter Operation.SYNC_SET Starts Synchronous Communications.Table 2 Sub-commandsName FunctionNOP No operationPRM_RD Reads Parameters.PRM_WR Writes Parameters.ALM_RD Reads fault and alarm.INV_I/O Controls Inverter I/O.