Hitachi WL200 Series

Chapter 8 PROFINET Specification
24
8.4.2 port ID
This data indicates the port information at which WJ-PN transmits LLDP packet.
Item
Length
Value
Type
7 bits
2
Length
9 bits
9
Value
port ID subtype
1 byte
7
port ID
8 bytes
port 1 : port-001
port 2 : port-002
8.4.3 Time To Live
This data indicates the seconds which is retention time.
Item
Length
Value
Type
7 bits
3
Length
9 bits
9
Value
Time To Live
1 byte
20
8.4.4 LLDP_PNIO_PORTSTATUS
This data is particular TLV to PROFINET, and indicates the PROFINET port information.
Item
Length
Value
Type
7 bits
0x7F
Length
9 bits
8
Value
OUI
3 bytes
0x00 0x0E 0xCF
subtype
1 byte
2
RTClass2 port status
2 bytes
0
RTClass3 port status
2 bytes
0
OUI (Organizationally Unique Identifier) is the unique identifier. OUI which is 0x00 0x0E 0xCF
indicates PROFINET.
WJ-PN doesn’t support RTClass2 and RTClass3.
8.4.5 LLDP_PNIO_CHASSIS_MAC
This data is particular TLV to PROFINET, and indicates the device information.
Item
Length
Value
Type
7 bits
0x7F
Length
9 bits
10
Value
OUI
3 bytes
0x00 0x0E 0Xcf
subtype
1 byte
5
MAC address
6 bytes
MAC address of host