Omron SYSMAC 3G8F7-CLK13-E Operation Manual page 37

Specifications and Configurations
Wired System
Items
Type
Model
Communications method
Code
Modulation
Synchronization
Transmission path form
Baud rate and maximum
transmission distance
Media
Node connection method
Maximum number of nodes 32 nodes or 62 nodes
Communications functions
Number of data link words
Data link areas
Message length
RAS functions
Error control
Wired
3G8F7-CLK23-E
3G8F7-CLK21-EV1
N:N token bus
Manchester code
Baseband code
Flag synchronization (conforms to HDLC frames)
Multi-drop bus
The maximum transmission distance varies with the baud rate as follows:
2 Mbps: 500 m
1 Mbps: 800 m
500 Kbps: 1 km
Specified shielded twisted-pair cable
Number of signal lines: 2, shield line: 1
Connect with provided connector
Data links and message service
Transmission area per node: 3G8F7-CLK23-E:
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)
FinsGateway event memory
2,012 bytes max. (including the header)
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
Manchester code check
16
CRC check (CCITT X
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
Specifications
3G8F7-CLK21-EV1:
12 5
+ X + X + 1)
Section 1-2
4,000 words max.
1,000 words max.
17