GE GFK0579B Scanner User Manual


 
9
127Chapter 9 Remote I/O Scanner Datagrams
Fault Byte 3
7654 32 10
byte 2
Fault record number (always 0)
Number of fault records
Fault Bytes 4 and 5
Fault bytes 4 and 5 (bytes 3 and 4 of the datagram) identify the reference offset (within
the Remote I/O Scanner itself) assigned to the faulted module. This is an internal
reference, not a Series 90–70 reference.
7654 32 10
byte 3
Diagnostic reference address, LSB
7654 32 10
byte 4
Diagnostic reference address, MSB
Fault Bytes 6 and 7
Fault bytes 6 and 7 (datagram bytes 5 and 6) are interpreted by the Series 90–70 Bus
Controller automatically. They are not relevant to other types of host.
7654 32 10
byte 5
7654 32 10
byte 6
Number of Series 90–70 fault entries to set (bit 7 = 1)
OR: Fault byte mask for S90–70 Bus Controller dual
port (bit 7 = 0).
Fault entire I/O module
Entity offset into diagnostic table
Fault entire Remote I/O Scanner