Fault byte 3, Fault bytes 4 and 5, Fault bytes 6 and 7 – FANUC Robotics America GFK-1535A User Manual
Page 66
GFK-1535A
Chapter 5 Datagrams
5-5
5
Fault Byte 3
7
6
5 4
3 2
1
0
byte 2
Fault record number (always 1)
Number of fault records (always 1)
Fault Bytes 4 and 5
Fault bytes 4 and 5 (bytes 3 and 4 of the datagram) identify the reference offset
(within the NIU itself) assigned to the faulted module. This is an internal reference.
7
6
5 4
3 2
1
0
byte 3
Diagnostic reference address, LSB
(always 1)
7
6
5 4
3 2
1
0
byte 4
Diagnostic reference address, MSB
(always 0)
Fault Bytes 6 and 7
Fault bytes 6 and 7 (datagram bytes 5 and 6) are interpreted by a Series 90-70 PLC
automatically. They are not relevant to other types of host.
7
6
5 4
3 2
1
0
byte 5
7
6
5 4
3 2
1
0
byte 6
If bit 7 = 1 Number of fault entries to set
If bit 7 = 0 Number of the discrete point or analog channel
within the module that has a fault
Fault entire I/O module
Entity offset into diagnostic table
Reserved