Prosoft-technology MVI69-MCM Uživatelský manuál stáhnout pdf (Strana 148)

Reference MVI69-MCM ♦ CompactLogix or MicroLogix Platform

User Manual Modbus Communication Module

Page 148 of 167 ProSoft Technology, Inc.

March 22, 2011

RS-232: Null Modem Connection (No Hardware Handshaking)

This type of connection can be used to connect the module to a computer or field

device communication port.

Note: For most null modem connections where hardware handshaking is not required, the Use

CTS Line parameter should be set to N

and no jumper will be required between Pins 7 (RTS) and 8

(CTS) on the connector. If the port is configured with the Use CTS Line set to Y, then a jumper is

required between the RTS and the CTS lines on the port connection.

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Prosoft-technology MVI69-MCM Uživatelský manuál Strana 148