Parker CM2904 Instruction Book

CM2904 Instruction Book © 2009 - 2022 Parker-Hannifin Corporation Page 24 of 51CM2904 Standard softwareCM2904 Message types• Signals are updated on every cycle• Whenever the signal is changed, it will be sent latest on next cycle. Thismeans that the regular transmission repetition rate for signal changes is20ms (max 2 cycles)• Signal states are to be sent latest in every 100ms, even there are no changes.This is called “Forced update” and it will tell that the module & its signalingis still alive in the case that there are no recent changes..NOTICEFor more information refer to following standards:Valid signal parameters s. ISO11783-7;Signal characterization s. ISO 11783-7;Message format s. ISO 11783-7;6.2. CM2904 Message typesTable 14: Message typesMessage Description NotesMDIN Multi-stage Digital input statusADC 1 MDIN1…MDIN4 measurementswith 0 - 32V rangeADC 2 ADC1…ADC4 measurementswith 0 - 8V rangeADC 3 ADC5…ADC8 measurementswith 0 - 8V rangeFI & DIAG Frequency Inputs andDiagnosticso FI 1: 0-1024 Hzo FI 2: 0-1024 Hzo 12 bit Quadrature encodercounter (default value2048)o Diagnostics: