FIELDBUS COMMUNICATION Digital input telegram is also available as a status word on protocol address 0300h (see sec- tion 3.3.1). 3.2. Digital output telegram From PLC to the Softstarter. To write the digital output telegram, use Modbus function code 5 Write Single Coil or 15 (0Fh) Force Multiple Coils. To read the digital output telegram, use Modbus function code 1 Read Coil Status or 2 Read Input Status. Protocol Address Data Description 0100h Reserved 0101h Stop Commence a stop when this coil is set (this coil has higher priority than the start coil). The stop coil is only acknowledged if the Auto mode coil is set. 0102h Start Commence a start when this coil is set.
The start coil is only acknowledged if the Auto mode coil is set. 0103h Reserved 0104h Reserved 0105h Auto mode This coil must be set for controlling the motor. 0106h Fault reset Reset an active fault or protection when this coil is set. 0107h Reserved 0108h Reserved 0109h Reserved 010Ah Reserved 010Bh Reserved 010Ch Clear active diagnos- tics Clear active diagnostics when this coil is set (register 2000h and 2003h will be cleared). See section 3.5.1 010Dh- 011Fh Reserved Digital output telegram is also available as a control word on protocol address 0400h (see section 3.3.2). © Copyright 2019 ABB. All rights reserved. STATUS Approved SECURITY LEVEL Public DOCUMENT ID. 1SFC132367M0201 REV.
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