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ADAM 4000 Series

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4021<br />

Chapter 4<br />

$025 !0200<br />

Now Reset Module 12 Times Never Use $025 Command<br />

$025 !020C<br />

$025 !0200<br />

If Input DAC Data Is Overflow Range Then The Return CMD Will Be :<br />

!AAO<br />

CMD To <strong>ADAM</strong>4024 <strong>ADAM</strong>4024 Response<br />

Suggest Timing :<br />

T0<br />

T0 : See Table<br />

T1 : 100ms<br />

T1<br />

CMD To <strong>ADAM</strong>4024<br />

TP1 : -2.5 V Test Point<br />

TP2 : +2.5 V Test Point<br />

VR1 : Trim Reference Voltage -2.5 V That Is If -2.5 V Is Not<br />

Equal To -2.499 ~ -2.501 Then Trim VR1<br />

JP3 : Watch Dog Enable Select<br />

If Short Then Enable WDT<br />

If Open Then Disable WDT<br />

Trim Current Procedure : Cause 4 Separate DAC So All 4 CH<br />

Current Must Trim Separate ( Ex. Address=02 CH=2 )<br />

1. Set CHx Output Range To 0 ~ 20 mA Type<br />

( $027C2R30 )<br />

2. Reset Current Trim Data Variable To 0 ( $02G )<br />

3. Output 4 mA Current To Meter ( #02C2+04.000 )<br />

4. If Meter Is Not Equal 4 mA Then<br />

(1) If Higher Than 4 mA Then Trim Data Down<br />

( $023C281 )<br />

(2) If Lower Than 4 mA Then Trim Data Up<br />

( $023C201 )<br />

Chapter 4 Command Set 4-147

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