Yokogawa DA100 Manuel d'utilisateur télécharger pdf (Page 23)

IM DA100-11E

3-4

Connecting to the Host Computer

Can be connected to a host computer with RS-232-C, RS-422-A, RS-485 ports.

• In the case of RS-232-C, a converter is used as shown in the diagram below.

• For information on recommended converters, refer to “Converters” in the latter.

• Dip switch needs to be changed depending on whether it is a two-wire system or four-wire sys-

tem. Refer to “3.5 RS-422-A/RS-485 Interface Parameter Setting Procedure.”

In the case of four-wire system

In general, the recorder is wired to the host computer using a four-wire system. When four-wire

system is used, the send and receive wires need to be crossed.

Terminator (externally applied) 120 ohm, more than 1/2 W

No terminators are inserted between #1 through #n-1 (internal OFF)

RS-422-A/RS-485

module

of the DA100/DR

#2 #n

(#n≤31)

Terminator (Internal ON)

Host

Computer

RDB( + )

RDA( - )

SDB( + )

SDA( - )

RD B

RD A

SD B

SD A

(SG)

(RD B)

(RD A)

(SDB)

(SDA)

RD B

RD A

SD B

SD A

(SG)

(RD B)

(RD A)

(SDB)

(SDA)

RD B

RD A

SD B

SD A

(SG)

(RD B)

(RD A)

(SDB)

(SDA)

(Diagram below shows the case when the port of the host computer is RS-232-C)

Terminator (externally applied) 120 ohm, more than 1/2 W

No terminators are inserted between #1 through #n-1 (internal OFF)

RS-422-A/RS-485

module

of the DA100/DR

#2 #n

(#n≤31)

Terminator (Internal ON)

SHIELD

RD( + )

RD( - )

TD( + )

TD( - )

RD B

RD A

SD B

SD A

Host

Computer

Converter

Z - 101HE

(SHARP)

(SG)

(RD B)

(RD A)

(SDB)

(SDA)

RD B

RD A

SD B

SD A

(SG)

(RD B)

(RD A)

(SDB)

(SDA)

RD B

RD A

SD B

SD A

(SG)

(RD B)

(RD A)

(SDB)

(SDA)

RS-232-C

3.3 RS-422-A/RS-485 Interface Connection

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 104 105

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Yokogawa DA100 Manuel d'utilisateur Page 23

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