FIELDBUS COMMUNICATION 3. PSE Data 3.1. Digital input telegram To PLC from the Softstarter.
To read the digital input telegram, use Modbus function code 1 Read Coil Status or 2 Read Discrete Inputs Protocol Address Data Description 0000h Reserved 0001h Motor stopped sta- tus 0 = Motor running 1 = Motor stopped 0002h Run status 0 = Motor stopped 1 = Motor running 0003h Reserved 0004h Reserved 0005h Auto mode status1 0 = Local control 1 = Modbus master control 0006h Fault status 0 = No active fault 1 = One or more active faults 0007h Reserved 0008h Reserved 0009h Reserved 000Ah Reserved 000Bh Start status Hardwire DI Start input signal state 0 = DI Start signal inactive 1 = DI Start signal active 000Ch Stop status Hardwire DI Stop input signal state 0 = DI Stop signal inactive 1 = DI stop signal active 000Dh Reset status Hardwire DI Reset input signal state 0 = DI Reset signal inactive 1 = DI Reset signal active 000Eh TOR status 0 = Softstarter is not in top of ramp 1 = Softstarter is in top of ramp (bypass closed) 000Fh Ready to start status 0 = Fault is active or control supply voltage is not stable and motor will not start when start command is given 1 = No faults are active, control supply voltage is stable and motor will start when start command is given 1) Auto mode reflects the control state of the Softstarter.
This is affected by a combination of: – The Auto mode input signal from the Modbus master (protocol address 0105h in the digi- tal output telegram or bit 5 in the control word). – The parameter “Fieldbus control”. STATUS Approved PAGE 5/22 © Copyright 2019 ABB. All rights reserved. SECURITY LEVEL Public DOCUMENT ID. 1SFC132367M0201 REV. B LANG. en