Omron NT631C manual Connecting to the Host from the RS-422A/485 Port

SECTION 5 Connecting to the Host from the RS-422A/485 Port

This section describes the method for connecting to the host using the RS-422A/485 port of the PT.

5-1 Connecting to the Host’s RS-232C Port		80
5-1-1 The Type of Host and Settings		81
5-1-2 1:1 Connection between RS-422A/485 at the PT and RS-232C
	at the Host	82
5-1-3 1:N Connection between RS-422A/485 at the PT and RS-232C
	at the Host	86
5-1-4 Recommended Connectors, Cables, and Crimp Terminals		90
5-1-5 Setting the Terminal Resistance for RS-422A/485 Communications		92
5-2 Connecting to the Host’s RS-422A/485 Port		93
5-2-1 Host Types and Settings		94
5-2-2 Direct Connection between RS-422A Ports at Both Units		115
5-2-3 Direct Connection between RS-485 Ports at Both Units		118
5-2-4 1:N Connection among RS-422A Ports		119
5-2-5	1:N Connection among RS-485 Ports	121
5-2-6	Recommended Connectors, Cables and Crimp Terminals	123
5-2-7	Setting the Terminal Resistance for RS-422A/485 Communications	124
5-2-8	Handling the Shield on RS-422A/485 Cables	125

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