Prosoft-technology MVI56E-MNETCR Manuel d'utilisateur télécharger pdf (Page 124)

Reference MVI56E-MNETCR ♦ ControlLogix Platform

User Manual Modbus TCP/IP Multi Client Enhanced Communications Module for Remote Chassis

Page 124 of 159 ProSoft Technology, Inc.

June 14, 2011

5.5.6 Preset Single Register (Function Code 06)

Query

Function (06) allows the user to modify the contents of a holding register. Any

holding register that exists within the controller can have its contents changed by

this message. However, because the controller is actively scanning, it also can

alter the content of any holding register at any time. The values are provided in

binary up to the maximum capacity of the controller unused high order bits must

be set to zero. When used with Server address zero (Broadcast mode) all Server

controllers will load the specified register with the contents specified.

Note Functions 5, 6, 15, and 16 are the only messages that will be recognized as valid for

broadcast.

Adr Func Data Start Reg

Data Start Reg

Data #of Regs Hi Data #of Regs Lo Error Check Field

11 06 00 01 00 03 CRC

Response

The response to a preset single register request is to re-transmit the query

message after the register has been altered.

Adr Func Data Reg Hi Data Reg Lo Data Input Reg Hi Data Input Reg Lo Error Check Field

11 06 00 01 00 03 CRC

1 2 ... 119 120 121 122 123 124 125 126 127 128 129 ... 158 159

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Prosoft-technology MVI56E-MNETCR Manuel d'utilisateur Page 124