FANUC Robotics America GFK-1535A - Manual (Page 79)

5-18 VersaMax™ System Genius® Network Interface Unit User's Manual – November 2000 GFK-1535A
5
(Byte in
Message)
(Byte in
Record) Content Byte Description
VersaMax configuration message header
0 0 0 Rack (e.g., Rack 0, the rack containing the GNIU)
1, 2 1, 2 82 Message length (e.g., 82 bytes total length)
3 3 3 Slot (e.g., 3, the second I/O slot)
4,5 4,5 0, 0 Offset into configuration data
(e.g., zero because the configuration fits in one message)
Rack/slot header
6, 7 0, 1 0x80, 0x08 secondary board ID
8, 9 2, 3 0x80, 0x80 primary board ID
10,…, 13 4,…, 7 0x44, 0x38,
0x34, 0x34
ASCII string. Set to zeros during auto-configuration, the programmer may fill this
field with an arbitrary identification string. (e.g., this is the ASCII label “D844”)
14,…, 29 8,…, 23 0 not used (must be 0)
30, 31 24, 25 50, 0 Length of additional data (e.g., 50 bytes)
Fixed I/O configuration fields
32, 33 0, 1 0x80, 0x08 secondary board ID (same as above.)
(e.g., discrete DC type, no diagnostic bits, no outputs, eight pairs of inputs)
34, 35 2, 3 0x80, 0x80 primary board ID (same as above)
(e.g., discrete DC type, no diagnostic bits, eight pairs of outputs, no inputs; there
are two boards in this module.)
36, 37 4, 5 48, 0 offset from the start of fixed I/O configuration fields to module-specific data. The
length of module-specific data is given at offset 18 below.
38, 39 6, 7 1, 0 Number of discrete input reference description fields listed in the input
segments list below. (may be 00)
40, 41 8, 9 1, 0 Number of discrete output reference description fields listed in the output
segments list below. (may be 00)
42, 43 10, 11 0, 0 Number of analog input reference description fields listed in the input segments
list below. (may be 00)
44, 45 12, 13 0, 0 Number of analog output reference description fields listed in the output
segments list below.(may be 00)
46, 47 14, 15 3, 0 Module setup, a bitmapped word
bit 0 indicates whether defaults are defined in the configuration structure. If
this bit is ‘1’, then input segments mode, output segments mode, default input
values and default output values fields are included below.
bit 1 enables fault reporting for the module.
bits 2-15 are reserved, must be set to zero.
(e.g., defaults are defined and fault reporting is enabled by this setting.)
48, 49 16, 17 0, 0 Reserved (must be 00)
50, 51 18, 19 2, 0 Length in bytes of module-specific data (e.g., two bytes)
52, 53 20, 21 0, 0 Reserved (must be 00)
54, 55 22, 23 0, 0 Reserved (must be 00)