Hardy HI 4050, User Manual

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Mapping 121
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Command Word (HSO2) and Status Word (HSI1)
When you are trying to send a command to the unit through mapping, you will be using
HSO2 for most of these commands. HSI1 is a status word that indicates the state of the unit
at that time. Do not confuse this with HSO1 which is the status of the command sent in
HSO2.If you are monitoring HSI1, this would indicate the condition of the unit at all times.
Any conditions in the list will have its bit turned on, so the value would be a combination
of any bits turned on at that time. Bits 0 & 1 are for A/D error/fault conditions. If you have
a problem with the input from the load cells or have a problem with the A/D converter in
the unit, you will get one or both of these bits on. If the bit is 0, then it is not an active
condition, 1 would indicate a true condition.
HSI1 - Status Word:
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HSI1 bit 0 (HI1.0) - A/D Conversion Error
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HIS1 bit 1 (HI1.1) - A/D Failure
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HIS1 bit 2 (HI1.2) - Center of Zero
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HIS1 bit 3 (HI1.3) - Weight Overrange
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HIS1 bit 5 (HI1.5) - Real Time Clock failure
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HIS1 bit 6 (HI1.6) - Motion
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HIS1 bit 8 (HI1.8) - SD memory card read failure
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HIS1 bit 9 (HI1.9) - Display error
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HIS1 bit 11 (HI1.11) - SD memory card write failure
When you send a command by setting a bit in HSO2, the command word, the HI 4050 will
run that command and send a copy of the command bit sent back to the user in HSO2 being
read. At that time, the unit will also send a command status in HSO1 to give an indication
of a pass or fail of the command. If it fails, the value returned will be an indication of the
cause of the failure. HSO1 - Command Status - value returned after a command (see HSO2)
is done.
Non-zero status means the command failed:
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Status 1 (0x0001) = Calibration, Zero, or Tare failed due to ADC error
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Status 2 (0x0002) = Calibration, Zero, or Tare failed due to ADC failure
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Status 64 (0x0040) = Calibration, Zero, or Tare failed due to Motion
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Status -8 (0xFFF8) = Hard Calibration failed, not enough ADC counts between high and
low steps
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Status -6 (0xFFFA) = C2 Calibration failed, no C2 sensors detected
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Status 7 (0x0007) = Bad command number of no command being sent
HSO2 - Command Word:
Commands are performed on a 1-shot basis when this word changes from 0 to 1. An error
code is returned in the "command status" word HSO1.
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HSO2 bit 0 (HO2.0) - Tare