HMS Networks Anybus CompactCom 40 Network Manual page 171

Network Specific — PROFINET
3.6. Status Register STAT_AUX-bit
30-series The STAT_AUX bit in the status register indicates if the output process data in the current telegram has changed
compared to the previous one. This functionality must be enabled in the Anybus object (01h), Attribute #15. By
default, the STAT_AUX bit functionality is disabled.
40-series The STAT_AUX bit indicates updated output process data (not necessarily changed data) from the network compared
to the previous telegram. The functionality is always enabled.
All released Anybus CompactCom 30 example drivers from HMS Industrial Networks comply with this difference.
Related Information: Anybus CompactCom 40 Software Design Guide (HMSI-216-125), section "Status Register".
3.7. Control Register CTRL_R-bit
30-series The application may change this bit at any time.
40-series For the 8-bit parallel operating mode, the bit is only allowed to transition from 1 to 0 when the STAT_M-bit is set in
the status register. When using the serial operating modes, it is also allowed to transition from 1 to 0 in the telegram
immediately after the finalizing empty fragment.
All released Anybus CompactCom 30 example drivers from HMS Industrial Networks comply with this difference.
Related Information: Anybus CompactCom 40 Software Design Guide (HMSI-216-125), section "Control Register".
3.8. Modifications of Status Register, Process Data Read Area, and Message Data Read
Area
In the 40-series, the Status Register, the Process Data Read Area, and the Message Data Read Area are write
protected in hardware (parallel interface). If the software for some reason writes to any of those areas, a change
is needed.
All released Anybus CompactCom 30 example drivers from HMS Industrial Networks comply with this difference.
4. Network Specific — PROFINET
Related Information:
Anybus CompactCom 40 PROFINET IRT Network Guide, HMSI-27-226.
Network Interface Appendix, Anybus CompactCom 30, PROFINET IO 2-Port, HMSI-168-49.
SCM-1202-021 Version 2.6
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Anybus CompactCom 40 - PROFINET IRT Transparent
Ethernet
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