4-1
TNU
4. TNU functions
About this chapter
This chapter describes the network unit TNU’s functions.
This section describes the
overview of the CC-Link
communication of TNU.
This section describes the
overview of the EtherCAT
communication of TNU.
This section describes the
overview of the EtherNet/
IP communication of TNU.
This section describes the
overview of the TACnet
communication of TNU.
This section describes the
overview of the TNU func-
tions.
1.
TNU functions ……………… 4-2
1-1 TNU functions ……………………………… 4-2
1-2 Control functions overview ……………… 4-3
1-3 Lower-level communication prohibition function … 4-11
1-4 Broadcast function ………………………… 4-11
1-5 Remote MANUAL function ……………… 4-11
1-6 Data readout function ……………………… 4-12
1-7 DVC write status display function ……… 4-15
1-8 DVC function ………………………………… 4-15
2.
CC-Link communication
specifications ……………… 4-16
2-1 CC-Link communication overview ……… 4-16
2-2 CC-Link data mapping …………………… 4-16
2-3 Buffer memory allocation correspondence table … 4-26
2-4 Number of occupied stations / multiple settings
(CC-Link Ver.2.00 only) …………………… 4-27
2-5 CSP and CSP+ files
(TNU Firmware Ver.1.2 or later) ………… 4-27
3.
EtherCAT communication
specifications ……………… 4-28
3-1 EtherCAT communication overview …… 4-28
3-2 EtherCAT PDO mapping
(I/O allocation correspondence table) … 4-28
3-3 ESI files ……………………………………… 4-34
4.
EtherNet/IP, DeviceNet
communication specifications … 4-35
4-1 Communication overview ………………… 4-35
4-2 EtherNet/IP, DeviceNet
Data mapping (master -> slave) ………… 4-36
4-3 EtherNet/IP, DeviceNet Communication
Specifications ……………………………… 4-38
4-4 EDS files ……………………………………… 4-41
5.
TACnet communication
specifications ……………… 4-42
5-1 TACnet communication overview ……… 4-42
5-2 TACnet communication status transition diagram 4-42
5-3 TACnet communication diagram ………… 4-43
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