YASKAWA PROFIBUS-DP 1000 Series Technical Manual

Also see for A1000 Series: Installation manual Technical manual Quick start guide Technical manual Manual

Contents

7 Option Data and I/O Maps26 YASKAWA ELECTRIC SIEP C730600 42B 1000-Series Option SI-P3 Technical Manual Example of HandshakingClear the handshaking register HS bit (bit 7) to 0 for the PLC program after turning on the power supply or after re-initializing. Figure 12 describes the handshaking function. The arrows indicate whether the PROFIBUS-DP master orthe option has the control for the protocol.Figure 12Figure 12 Example of Handshaking0011110000100001111000PROFIBUS-DP MasterHandshaking Output Register⇓⇓⇒⇓⇓⇓⇓⇒⇓⇓⇓⇓⇒⇓etc.SI-P3 CardHandshaking Input RegisterCommand ExecutedResponse ValidNew MEMOBUS/ModbusCommand to SI-P3 CardResponse ValidCreateCommandSignal NewMessage WaitingCreateCommandSynchronize Command Bitsto Start the Message ProcessSynchronize command bitsto start the message processSignal NewMessage WaitingSignal NewMessage WaitingCreateCommandCommand ExecutedNew MEMOBUS/ModbusCommand to SI-P3 CardNew MEMOBUS/ModbusCommand to SI-P3 Card