Emerson PACSystems Versamax - Report Fault Datagram Format

PACSystems VersaMax Genius Network Interface User Manual Section 5
GFK-1535D Jan 2023
Configuration 85
5.4 Report Fault Datagram Format
The format of Report Fault datagrams sent by an NIU is shown below.
PACSystems RX7i controllers, Series 90-70 PLCs, and VersaMax PLCs
interpret this information automatically; no datagram programming is
required. If the host is a Series Six or Series Five PLC, this information is
ignored. If the host is a computer, this information can be retrieved from
the unsolicited datagram queue and interpreted as needed for the
application.
Note: The NIU can store up to 32 untransmitted datagrams. If an event occurs that causes
more than 16 faults when the NIU is unable to transmit fault messages over the
network, some report fault datagram messages can be lost. When communications
are restored, the order in which the remaining messages are sent may differ from
the order in which the faults occurred.
Subfunction Code: 0F hex
Byte #
Description
0
Fault Byte 1
1
Fault Byte 2
2
Fault byte 3
3
Fault byte 4
4
Fault byte 5
5
Fault byte 6
6
Fault byte 7
Fault Byte 1
Figure 59: Fault Byte 1