148 model 2000 DeviceNet Module Manual (DN611/DN611A)Appendix C Definition of Each Request Function BlockCNUM_WRT2: UINT; (*Number of words to transfer)DUMMY_W3: BOOL; (*Dummy*)ADR_WRT3: WORD; (*Extension memory address*)DAT_WRT3: WORD; (*Transfer source variable*)NUM_WRT3: UINT; (*Number of words to transfer)TMR1: TON_100ms (*Acknowledgement wait timer*)TIME1: DINT; (*Acknowledgement wait time*)DUMMY_R1: BOOL; (*Dummy*)ADR_RED1: WORD; (*Extension memory address*)DAT_RED1: WORD; (*Transfer destination variable*)NUM_RED1: UINT; (*Number of words to transfer)COMP_RED1: BOOL; (*Completion*)DUMMY_R2: BOOL; (*Dummy*)ADR_RED2: WORD; (*Extension memory address*)DAT_RED2: ARRAY[0...1] OF WORD; (*Transfer source variable*)NUM_RED2: UINT; (*Number of words to transfer)COMP_RED2: BOOL; (*Completion*)DUMMY_W4: BOOL; (*Dummy*)ADR_WRT4: WORD; (*Extension memory address*)DAT_WRT4: WORD; (*Transfer source variable*)NUM_WRT4: UINT; (*Number of words to transfer)DUMMY_R3: BOOL; (*Dummy*)ADR_RED3: WORD; (*Extension memory address*)DAT_RED3: WORD; (*Transfer source variable*)NUM_RED3: UINT; (*Number of words to transfer)COMP_RED3: BOOL; (*Completion*)ST_STATUS: WORD; (*Station status*)COMP_RES1: BOOL; (*Compare result*)COMP_RES2: BOOL; (*Compare result*)COMP_RES3: BOOL; (*Compare result*)COMP_RES4: BOOL; (*Compare result*)TMR2: TON_100ms; (*Error detection timer*)TIME2: DINT; (*Error detection time*)END_VAR