ProSoft Technology ProLinx S3964R User Manual download pdf (Page 64)

MVI56-S3964RT ♦ TControlLogix PlatformT Reference

TSiemens 3964R ProtocolT

Page 64 of 78 ProSoft Technology, Inc.

5.3.2 RS-232

When the RS-232 interface is selected, the use of hardware handshaking

(control and monitoring of modem signal lines) is user definable. If no hardware

handshaking will be used, the cable to connect to the port is as shown below:

5.3.3 RS-232 Cable

The assignment of the RS-232 connection cable between PRT1/2 (9 pole) and

CP-544 (25 pole) is as follows:

PRT1/2 Pin Description CP 544 Pin Description

2 RxD 2 TxD

3 TxD 3 RxD

5 Gnd 7 Gnd

Important: The other pins of the RS-232 must not be used.

5.3.4 RS-422

RS-422 Tip

If communication in the RS-422 mode does not work at first, despite all attempts,

try switching termination polarities. Some manufacturers interpret +/- and A/B

polarities differently.

April 17, 2008

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ProSoft Technology ProLinx S3964R User Manual Page 64