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15
Specifications and Configurations
Section 1-2
1-2-3
Communications Specifications
Wired System
Note
1.
At least one Repeater Unit is required to construct networks that uses a
node address higher than 32. The following Controller Link Units/Support
Boards must also be used, and the Wired Network 62 Node Enable Bit of
the DM Parameter Area software switch of all nodes must be turned ON
(62 nodes max.).
Items
Specifications
Communications method
N:N token bus
Code Manchester
code
Modulation Baseband
code
Synchronization
Flag synchronization (conforms to HDLC frames)
Transmission path form
Multi-drop bus
Baud rate and maximum
transmission distance
The maximum transmission distance varies with the baud rate as follows:
2 Mbps:
500 m
1 Mbps:
800 m
500 Kbps: 1 km
Media
Specified shielded twisted-pair cable
Number of signal lines: 2, shield line: 1
Node connection method
PLC: Connected to a terminal block
IBM PC/AT or compatible: Connected via a special connector (included)
Maximum number of nodes
32 or 62 nodes (See note 1.)
Communications functions
Data links and message service
Number of data link words
Transmission
area per node
CS/CJ Series
CS1W-CLK23, CJ1W-CLK23:
4,000 words max.
CS1W-CLK-21-V1, CJ1W-CLK21-V1: 1,000 words max.
C200HX/HG/HE, CVM1/CV, CQM1H: 1,000 words max.
Personal computer
3G8F7-CLK23: 4,000
words
max.
3G8F7-CLK21-V1, 3G8F5-CLK21-E: 1,000 words max.
Data link area
(send/receive
words) per node
CS/CJ Series
CS1W-CLK21-V1, CJ1W-CLK21-V1: 20,000 words max. (unit Ver. 1.2
or later)
12,000 words max. (pre-Ver. 1.2)
CS1W-CLK23, CJ1W-CLK23:
20,000 words max.
C200HX/HG/HE, CVM1/CV, CQM1H: 8,000 words max.
Personal computer: 32,000 or 62,000 words max. (See note 2.)
Number of data
link words in one
network (total
transmission)
32,000 words (64,000 bytes) or 62,000 words max. (See note 2.)
Data link areas
Bit-access areas (IR, AR, LR, CIO), DM Area (DM), and extended DM Area (EM)
Message length
2,012 bytes max. (including the header)
RAS functions
Polling node backup function
Self-diagnosis function (hardware checking at startup)
Echoback test and broadcast test (using the FINS command)
Watchdog timer
Error log function
Error control
Manchester code check
CRC check (CCITT X
16
+ X
12
+ X
5
+ 1)
Содержание C200HW-CLK21
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Страница 12: ...xiii TABLE OF CONTENTS Index 367 Revision History 373 ...
Страница 13: ...xiv ...
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Страница 57: ...32 Application Precautions Section 1 5 Example CX Programmer Response Timeout Setting ...
Страница 69: ...44 Message Service Procedure Section 2 2 ...
Страница 111: ...86 Constructing Networks with Repeater Units Section 3 4 ...
Страница 154: ...129 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Страница 261: ...236 Response Codes Section 6 7 ...
Страница 297: ...272 Message Delay Times Section 8 4 ...
Страница 353: ...328 Handling Precautions Section 9 6 ...
Страница 364: ...339 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Страница 365: ...340 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Страница 369: ...344 Standard Models Appendix A ...
Страница 391: ...366 Using the Relay Terminal Block Appendix C ...
Страница 397: ...372 Index ...
Страница 401: ...376 Revision History ...