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17
Specifications and Configurations
Section 1-2
Wired System
Note
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.).
CS1W-CLK23, CS1W-CLK21-V1, CJ1W-CLK23, CJ1W-CLK21-V1,
3G8F7-CLK23-E, and 3G8F7-CLK21-EV1
Items
Specifications
Type
Wired
Model
3G8F7-CLK23-E
3G8F7-CLK21-EV1
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
Connect with provided connector
Maximum number of nodes 32 nodes or 62 nodes
Communications functions
Data links and message service
Number of data link words
Transmission area per node: 3G8F7-CLK23-E:
4,000 words max.
3G8F7-CLK21-EV1: 1,000 words max.
Number of data link words in one network (send/receive: 32,000 words max., but 62,000
words max. if the maximum of 62 nodes is used)
Data link areas
FinsGateway event memory
Message length
2,012 bytes max. (including the header)
RAS functions
Polling node backup function
Self-diagnosis function (hardware checking at startup)
Inter-node 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)
Summary of Contents for SYSMAC 3G8F7-CLK12-EV1
Page 2: ......
Page 4: ...iv ...
Page 20: ...xx Conformance to EC Directives 6 ...
Page 48: ...28 Applications Precautions Section 1 4 Example CX Programmer Response Timeout Setting ...
Page 68: ...48 Backup Power Supply Wiring Optical Ring Systems Only Section 2 4 ...
Page 74: ...54 Using the C Library Section 3 2 ...
Page 110: ...90 Changing the Data Link Tables with Active Data Links Section 5 5 ...
Page 187: ......