Communications Specifications - Omron C200HW-CLK21 Operation Manual

Specifications and Configurations
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Communications Specifications

Wired System
Items
Communications method
Code
Modulation
Synchronization
Transmission path form
Baud rate and maximum
transmission distance
Media
Node connection method
Maximum number of nodes 32 or 62 nodes (See note 2.)
Communications functions
Number of data link words
Data link areas
Message length
RAS functions
Error control
14
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
PLC: Connected to a terminal block
IBM PC/AT or compatible: Connected via a special connector (included)
Data links and message service
Transmission area per node: 1,000 words (2,000 bytes) max.
Data link area (send/receive words) per node
CS/CJ Series: 20,000 words max. (unit Ver. 1.2 or later)
12,000 words max. (pre-Ver. 1.2)
C200HX/HG/HE, CVM1/CV, CQM1H: 8,000 words max.
Personal computer: 32,000 or 62,000 words max. (See note 3.)
Number of data link words in one network (total transmission):
32,000 words (64,000 bytes) or 62,000 words max. (See note 3.)
Bit-access areas (IR, AR, LR, CIO), DM Area (DM), and extended DM Area (EM)
2,012 bytes max. (including the header)
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
Manchester code check
16
CRC check (CCITT X
Note 1. The maximum distance between nodes depends on the connector and ca-
ble processing methods.
2. 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-CLK21-V1, CJ1W-CLK21-V1, and 3G8F7-CLK21-V1
3. 62,000 data link words applies to configurations of 62 nodes.
Specifications
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+ X + X + 1)
Section 1-2