FANUC Robotics America GFK-1535A - Manual (Page 65)

5-4 VersaMax™ System Genius® Network Interface Unit User's Manual – November 2000 GFK-1535A
5
Report Fault Datagram Format
The format of Report Fault datagrams sent by an NIU is shown below. A Series 90
PLC interprets 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 fault messages. If an event occurs
that causes more than 32 faults when the NIU is unable to transmit fault messages
over the network, some messages will be lost. When communications are restored,
it is possible that the order in which the remaining messages are sent will 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
7 6 5 4 3 2 1 0
byte 0
Fault type, always: 0 0 1 1
Type of module reporting fault:
Suppress alarm (short fault only)
Always 0
00 = discrete output
01 = discrete input
10 = analog output
11 = analog input
Fault Byte 2
7 6 5 4 3 2 1 0
byte 1
Diagnostic table byte number (0 - 63) NOT USED