Filter
Top Products
9
Series 90–70 Remote I/O Scanner User’s Manual – June 1992126
Report Fault Datagram Format
The format of Report Fault datagrams sent by a Remote I/O Scanner is shown below.
The Series 90–70 Bus Controller 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.
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
7654 32 10
byte 0
Fault type, always: 0 0 1 1
Type of module reporting fault:
Suppress alarm (short fault only)
Long=1, short=0 (always 0 for IC697BEM733A)
00 = discrete output
01 = discrete input
10 = analog output
11 = analog input
Fault Byte 2
7654 32 10
byte 1
Diagnostic table byte number (0 – 63)
This value points to an internal table where the
Remote I/O Scanner stores the English ASCII
text used by the Hand–held Monitor to create
its fault message displays.