Omron NT631C manual Connecting to the RS-232C Port at the Host, Host Types and Settings

Connecting to the RS-232C Port at the Host Section 4-1

4-1 Connecting to the RS-232C Port at the Host

The method for connecting between the RS-232C port of the PT and the RS- 232C port of the host is as follows.

The following discussion is focused on the connection method to OMRON PLCs (By using the memory link method, a connection can be made to any arbitrary RS-232 unit). When making a connection to a host other than OMRON PLCs, refer to the PLC Connection Manual (V042-E1-@) or NT31/ 631 Multi Vendor Connection Manual (V060-E1-@).

Direct Connection Between The RS-232C Ports Using an RS-232C Cable (page 73)

This is the easiest connection method. Depending on the host to which the connection is to be made, it may be possible to use OMRON cables with con- nectors.

NT631/NT631C Host

RS-232C cable (max. 15 m)

Reference: The CS/CJ-series CPU Unit cannot be connected with the 1:1 connection NT Link method. Use the 1:N connection NT Link method instead to make the 1:1 connection. For details, refer to Using the NT Link (1:N) Method (page 65) or Using the High-speed NT Link (1:N) Method (page 70).

4-1-1 Host Types and Settings

The types of host that can be connected to a PT by using the RS-232C ports of both Units, and the settings to be made at the host, are described here.

When Using the Host Link Method

Compatible Host Units

Some models and series of OMRON PLCs have the host link function built in.

In the CS/CJ-series or CQM1H PLCs, the host link method can be used by installing a Serial Communications Board/Unit. In addition, some C200HX/ HG/HE(-Z)E CPU Unit can be connected in the host link method by installing a Communications Board.

Check the model and series of the PLC, the type of installed Serial Communi- cations Board, Serial Communications Unit, or Host Link Unit before making a connection.

The hosts that can be connected to the NT631/NT631C by the host link method using the RS-232C ports of both Units are indicated in the table below.

PLC	Units with Built-in Host Link	CPU Units Connectable with	Host Link Unit or	Connect-
Series	Function	Host Link Units or Expansion	Communications	able to
		Communications Board/Units	Board/Unit
CS Series	CS1G-CPU42/43/44/45-E(V1)	CS1G-CPU42/43/44/45-E(V1)	CS1W-SCU21(-V1)	CS1G
	CS1H-CPU63/64/65/66/67-E(V1)	CS1H-CPU63/64/65/66/67-E(V1)	CS1W-SCB21(-V1)	CS1H
	CS1G-CPU42H/43H/44H/45H	CS1G-CPU42H/43H/44H/45H	CS1W-SCB41(-V1)	CS1D
	CS1H-CPU63H/64H/65H/66H/67H	CS1H-CPU63H/64H/65H/66H/67H
	CS1D-CPU65H/67H	CS1D-CPU65H/67H(*1)
CJ Series	CJ1G-CPU44/45	CJ1G-CPU44/45	CJ1W-SCU21(-V1)	CJ1G
	CJ1G-CPU42H/43H/44H/45H	CJ1G-CPU42H/43H/44H/45H	CJ1W-SCU41(-V1)	CJ1H
	CJ1H-CPU65H/66H/67H	CJ1H-CPU65H/66H/67H		CJ1M
	CJ1M-CPU11/12/13/22/23	CJ1M-CPU11/12/13/22/23

48