Information and Control Network [TC-net≈Ω 100]

Related Information
Information and Control Network [TC-net™ 100]

model 1000 image

The TC-net™ 100 is an information and control network based on the Ethernet, a de-facto standard network, and is available for the message transmission with the use of the TCP/IP and the UDP/IP.

The TC-net™ 100 is an information and control network based on the Ethernet, a de-facto standard network, and is available for the message transmission with the use of the TCP/IP and the UDP/IP.

The TC-net™ 100, maintaining the openness of the Ethernet, is ready to interconnect seamlessly between information and control, and further is capable to extend to the internet and/or the intranet.

The TC-net™ 100 is based on the communication technology of the TCnet, which is one of the Real-Time Ethernet under standardization in the working group of the IEC/TC65/SC65C and is proposed by the Japan national committee.

  • Real-Time Ethernet TCnet

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.

Fig 1. Network Hierarchy Diagram image

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Features

TC-net™ 100 has the following features.

Openness

This network for monitoring and control maintains the openness of the 100Mbps Ethernet and has the collision avoidance function and the definite time responsiveness.

Communication service

The communication service includes the scan transmission which transmits control data periodically (cyclic broadcast reception/transmission) and the normal message transmission.

  • Scan transmission involves three speed modes, that is, high speed, medium speed and low speed, which can be allocated in accordance with the data update cycle, thus securing definite real-time responsiveness.
  • In message transmission, the network has realized the protocol compatibility between TOSDIC™-CIE 1200 and T3H, supported not only by TCP/UDP/IP but also by Toshiba Standard Protocol and PCMP.
Note:
PCMP is abbreviated from Process Control Message Protocol.

High reliability

Can construct a highly reliable system configuration through transmission path dualization. The transmission path can select either Optical or Electrical.

Network relay function (Scheduled)

TC-net™ 100 can relay message transmissions directly between TC-net™ 100 or Ethernet and transmission modules of another system.

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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.

Fig. 2 Scan transmission image

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High-performance transmission

  • The conventional Ethernet technology is subject to serious ill effect on the response time in the presence of a data collision, in the case of multiple broadcast communications at one time, on the transmission medium.
  • The TC-net™ 100 employs the DOMA (Deterministic Orderd Multiple Access) transmission scheduling, to eliminate data collision and ensure deterministic, high-response data transmission for wide variety of time-critical industrial applications.

Fig. 3 DOMA transmission system image

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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
  Module name Description
For model 3000 TN711 Single electric transmission path
TN712 Double electric transmission path
TN721 Single optical transmission path
TN722 Double optical transmission path
For PC JTNI11 Single electric transmission path
JTNI12 Double electric transmission path
JTNI21 Single optical transmission path
JTNI22 Double optical transmission path
For TOSLINE-8000 TNGW-5652 Double optical transmission path

Fig 4. Model 3000 TC-net™ 100 Module image

Fig. 5 Transmission Cards for PCs image

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).

Fig 6. Mounting Transmission Modules for Model 3000 image

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).

Fig. 7 Mounting Transmission Cards for PCs image

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.

Fig. 8 TOSLINE-8000 image

Transmission path components

List 2 Types of Transmission Path Components
  Module name Description
Optical shared hub UTNH21A For transmission path line-A
UTNH21B For transmission path line-B

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.

Fig. 9 Optical Shared Hub image

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

Fig. 10 Set-up of the Optical Shared Hub image

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.

Fig. 11 Real-Time Ethernet Bridge Unit image

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Transmission specifications & module specifications

General specifications are in accordance with the controller.

List 3 Transmission Specifications
Parameter Description
Data transmission speed 100Mbps
Medium access DOMA (Deterministic Ordered Multiple Access
Topology Star (Transmission path dualizable)
Transmission cable length Maximum length between nodes: 8 km
Optical fiber: 2km (Note 1)
Twisted pair cable: 100 m
Number of hub cascades 3 cascades
Number of nodes Up to 254 nodes per system (Note 2)
Transmission mode Scan transmission
High-speed scan period: 1 ms to 160 ms
Medium-speed scan period: 10 ms to 1,000 ms
Low-speed scan period: 100 ms to 10,000 ms
Message transmission
TCP/IP system message reception/transmission
Scan transmission capacity 128KW per system (16 bits per word)
2048 blocks per system (64 words per block)
Transmission capacity 576 blocks per node
(36KW per node)
Status change detection (Note 3)
Change detection word count: 128 words per node
Change detection cycle
Change detection word count 30 s
Detection signal interval: At least 50 ms
Cable Electrical Category 5 twisted-pair cable
Optical Quartz GI cable (62.5/125; long wavelength) or (50/125; long wavelength)
Connector Electrical RJ-45 modular jack
Optical MT-RJ type optical connector
Grounding Class D (Grounding resistance : 100 ohms or less)
Notes 1.
If laser emission diodes and optical fiber single mode are used, up to 8 km can be extended. (Under development)
Notes 2.
Optical shared hubs (UTNH21A) are also included in the station count.
Notes 3.
Some product types are unsupported.
List 4 Model 3000 Module Specifications
Parameter Description
Connected device Integrated controller
Connected bus Station bus
Slot occupied One slot per module
Number of modules mounted Up to four modules per controller basic unit
Transmission path dualization Available
Current consumption 2A or less
Tool connection D-Sub 9 pins (Male)
RS-232C connection

Model 3000 Module image

List 5 PC Card Specifications
Parameter Description
Connected device Personal computer
Connected bus PCI bus
Slot occupied One slot per module
As other, an Ethernet card is required
Size Half size
Number of modules mounted Up to two cards per PC
Transmission path dualization Available
Current consumption 2A or less

PC Card image

List 6 Optical Shared Hub Specifications
Parameter Description
Port count Optical: Eight ports
Electrical: One port
Tool connection RJ-45 modular jack
100M Ethernet connection
Supply voltage 95 to 250V, 50/60 Hz
Current consumption 100Vac; 60W or less
Operating temperature range 0 to 55 degree C
Appearance 446mm(W) x 45(H) x 221.5(D)
Weight 5kg or less

Optical Shared Hub image

List 7 Ethernet Bridge
Parameter Description
Port count TC-net™ 100 Optical: One ports
Ethernet Electrical: Four ports
Supply voltage 85 to 264V, 50/60 Hz
Current consumption 100Vac; 20W or less
Operating temperature range 0 to 55 degree C
Appearance 220mm(W) x 40(H) x 205(D)
Weight 1.2kg or less

Ethernet Bridge image

  • Ethernet is a registered trademark of Fuji Xerox Co., Ltd. in Japan.
  • TC-net, TOSDIC are registered trademarks of Toshiba Corporation.
  • Other company names and product names herein are trademarks or registered trademarks of the companies concerned.

* The contents are subject to change without notice for design changes or other reasons.

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