Fl-Net Status Management; Fl-Net Message Sequence Number Management; Table 8-10 Network Management Table; Table 8-11 Transmission Management Data For Message Sequence - Hitachi FL.NET User Manual

8 APPENDIXES

8.2.6 FL-net status management

(1) Basic feature
Provides management of parameters related to network status.
(2) Management data
Token maintenance node number
Minimum frame interval
Refresh cycle time
Refresh cycle measurement time (current)
Refresh cycle measurement time (maximum)
Refresh cycle measurement time (minimum)

8.2.7 FL-net message sequence number management

(1) Basic feature
Manages the message transmission sequence number and sequence number/version number.
(2) Transmission management data

Table 8-11 Transmission Management Data for Message Sequence

Item
Sequence number/version number
Sequence number (One-to-N transmission)
Sequence number (One-to-one transmission)
"0xFFFFFFFF" is a hexadecimal number (FFFFFFFF hex).

Table 8-10 Network Management Table

Item
Number Management
Length
4 bytes
4 bytes
4 bytes
Length
1 byte Node that currently holds the token.
1 byte Variable in 100 μs units.
2 bytes Variable in 1 ms units.
2 bytes Variable in 1 ms units.
2 bytes Variable in 1 ms units.
2 bytes Variable in 1 ms units.
Sequence number/version number for message transmission
0x1 to 0xFFFFFFFF
0x1 to 0xFFFFFFFF
8-18
Description
Description