WAGO-I/O-SYSTEM 750 I/O Modules 205758-874/000-110 WAGO-I/O-IPC-C6ManualVersion 2.3.0Output Process ImageByte DestinationOffset High Byte Low Byte Description0 C1 C0 Control byte C1 Control byte C01 D1 D0 Setpoint position Setpoint position(LSB)2 D3 D2 Setpoint position(MSB)Setpoint position17.2.5.9 Stepper Controller750-670The Stepper controller RS422 / 24 V / 20 mA 750-670 provides the fieldbuscoupler 12 bytes input and output process image via 1 logical channel. The data tobe sent and received are stored in up to 7 output bytes (D0 … D6) and 7 inputbytes (D0 … D6), depending on the operating mode.Output byte D0 and input byte D0 are reserved and have no function assigned.One I/O module control and status byte (C0, S0) and 3 application control andstatus bytes (C1 ... C3, S1 ... S3) provide the control of the data flow.Switching between the two process images is conducted through bit 5 in thecontrol byte (C0 (C0.5). Activation of the mailbox is acknowledged by bit 5 of thestatus byte S0 (S0.5).Table 105: Stepper Controller RS 422 / 24 V / 20 mA 750-670Input Process ImageByte DestinationOffset High Byte Low Byte Description0 reserved S0 reserved Status byte S01 D1 D02 D3 D23 D5 D4Process data*) / Mailbox**)4 S3 D6 Status byte S3 Process data*) /reserved**)5 S1 S2 Status byte S1 Status byte S2*) Cyclic process image (Mailbox disabled)**) Mailbox process image (Mailbox activated)
