ABB ACS310 - Page 39

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Quickstart Guide
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ABB PLC and drives integration using Modbus RTU
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ModbusRTU‐39‐ PLCanddrivesintegration
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Setfunctionblockinputsaccordingto:
 EN=TRUE(1)→Theblockwillalwaysbeenabled.
 PRIO=Leftunconnected.
 NVAR=Numberofparameterstoberead(2)→2parameterswillbereadinthisexample.
 PRM_NUM=Startaddr
essofparameterstoberead(3)→parameters12.02and12.03willbereadinthis
example.
 DATA is connected via an “ADR” block to a new variable (4). Press the “…” button (5) and choose type
“ARRAY”(6),setStartindexto1andEndindextothenumb
erofvaluestoberead,2inthisexample(7).
Settypeto“INT”(8)andpress“OK”.
 DRIVE_DATA=Thesamevariablethatis connectedto“ACS_COM_MOD_RTU”→“DRIVE_DATA”(9).
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