Information and Control Network [TC-net™ 100]

General

As shown in Figure 1, the network of the Integrated Controller V Series is based on a hierarchical configuration.
TC-net™ 100 realizes high-speed and real-time transmission between supervisory units, computers and controllers via the Information and control LANs indicated by dotted lines in Figure 1.

Securing control data synchronism

A control system must meet the requirement for data synchronization between each node.
The TC-net™ 100 secures control data synchronization by scan data transmission with so-called common memory system. The scan data transmission, based on cyclic transmission, is available at any of three speeds (hight, medium, low) whitch may be selected ranging from 1 ms second minimum in units of 0.1 m second, an impossibility with the conventional Fast Ethernet. The TC-net™ 100 is free of delays in control data transmission even in the case where a large volume of data, for example, of moving pictures, is transmitted.

Network Configuration

Transmission module

TC-net™ 100's transmission modules are available in eight types as listed in Table 1.

List 1 Types of Transmission Modules

This table can be scrolled horizontally.

Mounting configuration

The model 3000 transmission module is mounted on the station bus slot of model 3000's controller basic base. Up to four transmission modules can be installed in the basic base (Figure 6).

The transmission card for PCs is installed in the PCI bus slot of the PC.
The general-purpose Ethernet card is also installed for message transmission.
The transmission card for PCs and the general-purpose Ethernet card are connected to each other via the attached twisted-pair cable. Up to two transmission cards can be installed in the PCI bus slot (Figure 7).

TOSLINE-8000 Gateway station

The TOSLINE-8000 Gateway station is the network interconnection device between the TOSLINE-8000 and the TC-net™ 100.
On the TOSLINE-8000 side, the SVC station and the local station which controls the input/output data from/to the field devices, are connected by using the fiber optic cable.
On the other TC-net™ 100 side, the TC-net™ 100 stations such as the integrated controller V series with the TC-net™ 100 model 3000 module and the personal computer with the TC-net™ 100 PCI bus interface card, are connected by using the redundant fiber media. The TOSLINE-8000 Gateway station is restricted to intercommunicate the scan data between the TOSLINE-8000 and the TC-net™ 100.

Transmission path components

Optical shared hub is required to configure TC-net™ 100's optical transmission path (Figure 9).
The optical shared hubs are available for the Line A and the Line B. And when the transmission path is dualized, these lines are connected to the respective paths.

Figure 10 shows the set-up of the optical shared hub in case of the redundant media configuration.

Real-Time Ethernet Bridge Unit

The Real-time Ethernet bridge is the intermediate device for seamless connection between the segments of the TC-net™ 100 Real-Time Ethernet and the general purpose Ethernet, and by using the Real-Time Ethernet bridge a variety of the Ethernet devices is able to hook up to the TC-net™ 100.