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Laurel Electronics Custom ASCII Protocol For Laureate Series 2 Digital Panel Meters, Counters, Timers & L-Series Transmitters User Manual

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10. APPENDIX A: DPM MEMORY ADDRESSES AND DATA DEFINITIONS

10.1 DPM 1-BYTE RAM MEMORY DATA

(L) = Lower memory, (U) = Upper memory.

The bit assignments below constitute an 8-bit binary number, which needs to be converted to
Hex using a program such a Scientific Calculator under MS Windows Accessories. To change
an Item in DPM RAM Memory, write the converted Hex value to the Hex Address shown in the
left column. To change an Item in Nonvolatile Memory, go to table 10.4, read the existing two-
byte word (MS byte and LS byte) from the DPM for the Hex Address which includes the Item
to be changed, edit the MS or LS byte as appropriate, and write the edited word back to the
Hex Address. Be careful not to overwrite the Sig Cond Type LS byte under Hex Address 15.

Hex Address

Item Name

Bit Assignment

DE (L)

Configuration

Bit 7 6 5 4 3 2 1 0

0 Linear data

1 Custom curve (Extended DPM)

0

Spare

0

No Auto-Tare

1

Auto-Tare

0 0

Peak button displays Peak

0 1

Peak button displays Valley

1 0

Peak b. displays Peak then Valley

1 1

Peak button tares the meter

0 0 0

Not rate

0 0 1

Rate x 0.1

0 1 0

Rate x 1

0 1 1

Rate x 10

1 0 0

Rate x 100

1 0 1

Rate x 1000

1 1 0

Rate x 10,000

BF (L)

Analog Setup

Bit 7 6 5 4 3 2 1 0

0 Analog output unfiltered

1 Analog output filtered

0 0 0-20 mA current output

0 1 0-10V voltage output

1 0

4-20 mA current output

1 1

-10V to +10V output