Mitsubishi Electric A800 Programming Manual page 3

1.14 PID control .............................................................................................................. 52
1.15 Clearing the flash memory of the PLC function .................................................. 53
1.16 Constant scan......................................................................................................... 54
2 CC-Link communication
2.1 System configuration............................................................................................. 56
2.1.1 System configuration example...................................................................................................... 56
2.1.2 Function block diagram................................................................................................................. 57
2.2 CC-Link parameter ................................................................................................. 58
2.2.1 CC-Link extended setting (Pr.544) ............................................................................................... 58
2.3 CC-Link I/O specifications..................................................................................... 59
2.3.1 I/O signals when one station in the CC-Link Ver.1 is occupied (Pr.544 = "100").......................... 59
2.3.2 I/O signals when the double setting is set in CC-Link Ver.2 (Pr.544 = "112") .............................. 61
2.3.3 I/O signals when the quadruple setting is set in CC-Link Ver.2 (Pr. 544 = "114") ........................ 63
2.3.4 I/O signals when the octuple setting is set in CC-Link Ver.2 (Pr. 544 = "118 or 128") ................. 64
2.4 Buffer memory........................................................................................................ 66
2.4.1 Remote output signals (master station to inverter (FR-A8NC)) .................................................... 66
2.4.2 Remote input signals Pr.544 = "100" (inverter (FR-A8NC) to master station) .............................. 67
2.4.3 Remote registers Pr.544 = "100" (master station to inverter (FR-A8NC)) .................................... 68
2.4.4 Remote registers Pr.544 = "100" (inverter (FR-A8NC) to master station) .................................... 69
3 Sequence program
3.1 Overview ................................................................................................................. 72
3.1.1 Overview of operation................................................................................................................... 72
3.2 RUN/STOP operation ............................................................................................. 74
3.3 Program configuration........................................................................................... 74
3.4 Programming language ......................................................................................... 75
3.4.1 Relay symbolic language (ladder mode) ...................................................................................... 75
3.4.2 Function block (FB)....................................................................................................................... 77
3.5 Operation processing method of the PLC function ............................................ 78
3.6 I/O processing method .......................................................................................... 79
3.6.1 Refresh method ............................................................................................................................ 79
3.6.2 Response delay in refresh mode .................................................................................................. 80
3.7 Scan time ................................................................................................................ 81
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