Omron CJ1W-PRT21, Руководство по эксплуатации

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3 Data Exchange with the CPU Unit
3-28
CJ-series PROFIBUS Slave Unit Operation Manual for NJ-series CPU Unit (W510)
3-8 CPU Status Information
The user may specify that the first two input words to be sent over PROFIBUS that will contain status
information about the slave CPU. This information is also contained in the PROFIBUS-DP diagnostics,
but access to cyclic I/O data may be easier than access to diagnostics. In case the status of the slave
CPU is unknown (at startup, or at fatal I/O bus error), both Words 0 is set to "0000" (status unknown).
Additional Information
• Shown format for both words is in Motorola mode. If Intel mode is specified for the PROFIBUS
inputs, the high and low bytes will change places.
• Specific NJ-series CPU status is not mapped in the second word (Word 1 above). Use generic
PROFIBUS Input to map detailed NJ-series status.
• Refer to the NJ-series GetAlarm and GetPLCError functions to access detailed CPU status
data.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Word 0
PROGRAM Mode
CPU Initialization (RUN/MONITOR Mode)
CPU Executing (RUN/MONITOR Mode
RUN Mode
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Word 1
(Reserved)
Error code in CPU