ABB ACQ810 - Page 45

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Quickstart Guide
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ABB PLC and drives integration using Modbus RTU
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ModbusRTU‐45‐ PLCanddrivesintegration
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Goonline againbychoosing “Login”fromthe“Online”menuandthen “Run”fromthe samemenu(ifthePLC is
notalreadyinrunmode).
The status of the function block inputs and outputs are now displayed in the visualization window. Block in
puts
which have not been connected to the function blocks in the program “PRG” can be changed from the
visualizationwindow.
Note! In this example all block inputs have already been connected to the function blocks, so they cannot be
changedfromthevisualizationview.
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Someex
amplesofwhatcanbeseeninthevisualization:
 READY:ifthedriveisready tostart.
 OPERA
TING:ifthedriveisoperating(magnetizingthemotor).
 TRIPPED:ifthedrivehasanactivefault.
 ACT_SPEED:actualspeedvalue.
 ACT_SW:actual16‐bitStatusWordfromthedrive.
 USED_CW:actual16‐bi
tControlWordsentfromthePLCtothedrive.
 MESSAGEfield:informationabouttheactualstate,e.g.“Operation”or“WaitforrisingedgeofSTART”.
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