Siemens SICAM A8000 Serie Handbuch Seite 753

Modbus Funktion Code - Beschreibung
16 = WRITE MULTIPLE REGISTERS
22 = MASK WRITE REGISTER
23 = READ / WRITE MULTIPLE REGISTERS
24 = READ FIFO QUEUE
Daten Zugriff (Datei Lesen/Schreiben)
20 = READ FILE RECORD
21 = WRITE FILE RECORD
Diagnose
07 = READ EXCEPTION STATUS
08 = DIAGNOSTICS (SUB-Code 00-18,20)
11 = GET COM EVENT COUNTER
12 = GET COM EVENT LOG
17 = REPORT SLAVE ID
43 = READ DEVICE Identification (SUB-Code = 14)
Andere
43 = Encapsulated Interface Transport (SUB-Code =
13,14)
Modbus Exception Status
Modbus Exception Code - Beschreibung
01 = ILLEGAL FUNCTION
SICAM A8000 Serie, CP-8050, Handbuch
DC8-025-2, Ausgabe 06.2018
Kommunikationsprotokolle
Daten-Formate
<01> INT16
<02> UINT16
<03> INT32 (H/L)
<04> UINT32 (H/L)
<05> INT32 (L/H)
<06> UINT32 (L/H)
<7a> FLOAT32
<7b> FLOAT32 (swapped)
<20> SPI
<21> DPI (1=off, 2=on)
<22> DPI (1=on, 2=off)
<30> SC
<31> SC (pulse)
<32> DC
<35> DC2 (pulse)
Anmerkung
Modbus Funktion Code nicht unterstützt
6.8 Modbus TCP
753