APPENDIXA-2 « FC4A MICRO SMART USER ’S MANUAL »Note: Operands M, D, I, and Q represent internal relay, data register, input, and output, respectively.Breakdown of END Processing TimeThe END processing time depends on the MicroSmart settings and system configuration. The total of execution times forapplicable conditions shown below is the actual END processing time.Note 1: Clock function is processed once every 500 ms.Note 2: Data link slave stations are processed in interrupt processing asynchronous to the ordinary system processing.I/O Delay TimeIn addition to processing user program instructions and END instruction, the MicroSmart system processing includesinterrupt processing of various functions.The minimum delay from a standard input to a standard output in the program below is 884.1 μs.The I/O delay time may be increased by such factors as increased END processing time (caused by frequent interrupt pro-cessing and larger program size) and input filter setting.BTOA D → D 160ATOB D → D 156ENCO M → D 16 bits 92DECO D → M 51BCNT M → D 16 bits 180ALT 26LJMP 15LCAL 20LRET 7IOREF I 52Q 15RUNA, STPA 100-byte access 10 msItem Condition Execution TimeHousekeeping (built-in I/O service) 640 μsExpansion I/O serviceIN/OUT 8/8 points 260 μsIN/OUT 16/16 points 340 μsIN/OUT 32/32 points 720 μsClock function processing (Note 1) 850 μsData link master station processing(Note 2) When using a data link system4.2 + 2.4 × transmit/receive words ms(at 19200 bps)See page 25-10.Maximum execution time LOD 1.0 μsOUT 3.1 μsEND processing time (without interrupt processing) Housekeeping 640 μsInput delay time (DC input without filter setting) 40 μsOutput delay time (transistor output) Approx. 200 μsInstruction Operand and Condition Execution Time (μs) NoteI0Instruction DataLODOUTI0Q0Q0
