Omron C200HW-SRM21-V1 - 08-2007 - Section 2 Compobus;S System Specifications and Configuration; Compobus;S System Specifications and Configuration

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SECTION 2
CompoBus/S System Specifications and Configuration
This section provides information on CompoBus/S System specifications, methods used to configure a CompoBus/S
System, and I/O response times.
2-1 Communications Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2-2 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2-2-1 Main Line/Branch Line Connections . . . . . . . . . . . . . . . . . . . . . . . . 25
2-2-2 Maximum Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2-2-3 Terminator Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2-3 Supplying Power to the Slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2-3-1 Using 2-conductor VCTF Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2-3-2 Using 4-conductor VCTF or Special Flat Cable. . . . . . . . . . . . . . . . 34
2-3-3 Limitations of Communications Cable Power Supply . . . . . . . . . . . 35
2-4 System Configuration Using Water-resistant Terminals. . . . . . . . . . . . . . . . . 41
2-5 I/O Response Time Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
2-5-1 Slaves Other Than Analog Terminals. . . . . . . . . . . . . . . . . . . . . . . . 42
2-5-2 Slave Analog Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2-5-3 Slave I/O Delay Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51