Rockwell Automation 1746-XXXX SLC 500 4-Channel Analog I/O Modules User Manual User Manual

Page 105

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Publication 1746-UM005B-EN-P - June 2004

Optional Analog Input Software Calibration C-5

Rung 2:0

| Cal_Lo |

| I:1 N10:0 +MOV---------------+ |

|----] [------[OSR]---------------------------------------+MOVE +-|

| 0 0 |Source ANALOG_IN| |

| | 8000| |

| |Dest LO_VALUE| |

| | 3267| |

| +------------------+ |

Rung 2:1

| Cal_Hi |

| I:1 N10:0 +MOV---------------+ |

|----] [------[OSR]---------------------------------------+MOVE +-|

| 1 1 |Source ANALOG_IN| |

| | 8000| |

| |Dest HI_VALUE| |

| | 16396| |

| +------------------+ |

Rung 2:2

| Calibrate |

| I:1 N10:0 +SUB---------------+ |

|----] [------[OSR]------------------------------+-+SUBTRACT +------+-|

| 2 2 | |Source A HI_VALUE| | |

| | | 16396| | |

| | |Source B LO_VALUE| | |

| | | 3267| | |

| | |Dest SPAN| | |

| | | 13129| | |

| | +------------------+ | |

| | +SUB---------------+ | |

| +-+SUBTRACT +------+ |

| | |Source A SCALE_HI| | |

| | | 16384| | |

| | |Source B SCALE_LO| | |

| | | 3277| | |

| | |Dest SCALE_SPAN| | |

| | | 13107| | |

| | +------------------+ | |

| | +MUL--------------------+ | |

| +-+MULTIPLY +-+ |

| | |Source A SCALE_SPAN| | |

| | | 13107| | |

| | |Source B 10000| | |

| | | | | |

| | |Dest N10:16| | |

| | | 32767| | |

| | +-----------------------+ | |

| | +DDV---------------+ | |

| +-+DOUBLE DIVIDE +------+ |

| | |Source SPAN| | |

| | | 13129| | |

| | |Dest SLOPE_X10K| | |

| | | 9983| | |

| | +------------------+ | |

Ladder logic continued on the next page.

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