Toshiba 2000 V Series Manual

Also see for 2000 V Series: User manual

6F8C0845 894.4 User Function Block for Slave Data Input/Output4(f)Keep REQ TRUE till DONE turns TRUE.(g) In using this function block in synchronous mode, the input output semaphors ofthe DN611 are used by just one function block, so do not use two or more of thisfunction block per program for the same DN611.(h) ERR and DONE are turned TRUE if an error occurs, for example.(i) Completion status is output to STATUS.(j) If REQ is FALSE, both DONE and ERR turn FALSE.(k) When this function block is started (when REQ is turned TRUE), keep REQTRUE till DONE becomes TRUE.Asynchronous Both • Output data write in polling output data area and bitstrobe output data area• Input data read from polling/bit strobe input data areaSynchronous Both • Output data write in bit strobe output data area• Data exchange with slave device using bit strobe outputdata semaphore and input data semaphore• Output data write in polling output data area Input dataread from polling/bit strobe input data area• Data exchange with slave device using polling outputdata semaphore and input data semaphore• Input data read from polling/bit strobe input data areaTable 4-17 Operation of Input/Output Data Area Batch Access Function BlockData transferbetween Scontroller andDN611Polling/Bit Strobe Function Block Operation