YASKAWA MECHATROLINK-II SI-T3 Technical Manual

Also see for SI-T3 MECHATROLINK-II A1000 Series: Installation manual Technical manual Installation manual Installation manual

Contents

7 Transmission InterfaceYASKAWA ELECTRIC SIEP C730600 50A YASKAWA AC Drive-Option Card MECHATROLINK-II Technical Manual 157 Transmission Interface MECHATROLINK-II Cyclic TransmissionsAs a MECHATROLINK-I/MECHATROLINK-II station, the SI-T3 exchanges control data and I/O data with a controldevice, such as a controller. Communications with the master are executed by sending response data timed to thereception of command data for the local station address from the master in each transmission cycle. The formats for thecommand and response data follow the specifications for the MECHATROLINK Drive commands. Basic Format of Data TransferThe basic format for transferring data is as follows.The size of the header for a data link layer is fixed at two bytes.By setting, either 17 bytes (17-byte data transmission) or 32 bytes (32-byte data transmission) can be selected as the datasize for the data link layer. If 32-byte data transmission is selected, only the first 29 bytes <1> are used as applicationdata.Figure 5Figure 6 Basic format of data transfer (17-byte data transmission)<1> The first 30 bytes are used only when the INV_I/O sub-command is used.TerminatorMaster: MP2300 Controller (Example)MP2300YASKAWATESTޓޓޓRDYALMTXRUNERRBATMONCNFGINTSUPSTOPSW1OFF ONBATTERYCPU I/ODC24VDC 0VM-I/IICommand dataStation addressControl codeCommand code−DataWDTResponse dataHeader ofdata link layerData link layer dataand application layerStation address+00H+01H+02H+03H+04H+06H+11H+12H+00H+01H+02H+03H+04H+11H+12HControl codeResponse codeAlarmStatusDataEWDT