FIELDBUS COMMUNICATION 3.4. Analog input telegram To PLC from the Softstarter. All analog input telegram data values are represented as 16-bit values. To read the analog input telegram, use Modbus function code 3 Read Holding Registers or 4 Read Input Registers.
Protocol Address Data Representation 0200h Motor current in % of Ie (0%-800%) Value = 1 ⇒ 1% 0201h Thermal load in % of trip temperature (0%-100%) Value = 1 ⇒ 1% 0202h Phase current L1 Value = 1 ⇒ 1A 0203h Phase current L2 Value = 1 ⇒ 1A 0204h Phase current L3 Value = 1 ⇒ 1A 0205h Max phase current Value = 1 ⇒ 1A 0206h Measured frequency Value = 1 ⇒ 1Hz 0207h Measured power factor Value = 100 ⇒ 1 0208h Output voltage in % of line voltage Value = 1 ⇒ 1% 0209h Counted number of starts Value = 1 ⇒ 100 020Ah Run time in hours Value = 1 ⇒ 10h 020Bh Modbus failure register (the address from which data could not be read from or written to) Value = 1 ⇒ 1 020Ch Modbus toggle bit (value toggles at every read) Value = 1 ⇒ 1 3.5.
Diagnostics 3.5.1. Diagnostic data To PLC from the Softstarter. To read the diagnostics data, use Modbus function code 3 Read Holding Registers or 4 Read Input Registers.
Protocol Address Bit Data Description 2000h 0 Reset possible on active event Current fault or protection can be reset 1 Software fault Internal fault 2 Shunt fault Current is flowing when it should not 3 By-pass open By-pass does not close 4 Softstarter overload Too high thyristor- or heat sink temperature 5 Phase loss No voltage in one or more phases on the line side 6 Bad network quality Bad network quality on the line side 7 Current loss Current is not flowing when it should STATUS Approved PAGE 9/22 © Copyright 2019 ABB. All rights reserved. SECURITY LEVEL Public DOCUMENT ID. 1SFC132367M0201 REV. B LANG. en