Despatch Protocol Plus Modbus Communications Manuel d'utilisateur télécharger pdf (Page 36)

Chromalox Instruments and Controls

A-51643 Rev. 6 10/06/03 30

Table 11: Protocol

Plus Diagnostic Register Bit Assignment

Bit #

Description

EEPROM Data Error

A/D

Not Used – Loop Error

Not Used – Tune Error

Not Used -- Available for Application Specific Support

Example: Return the diagnostic register from slave device 2 (with an EEPROM error).

Query

Response

Field Name

Data

Field Name

Data

Slave address

$02

Slave address

$02

Function

$08

Function

$08

Sub-function hi

$00

Sub-function hi

$00

Sub-function lo

$02

Sub-function lo

$02

Data hi

$00

Data hi

$00

Data lo

$00

Data lo

$04

CRC

$----

CRC

$----

5.3.1.4 [08 04] Force Listen Mode Only

Forces the slave into Listen Only Mode. This isolates it from the other devices on the network, allowing

them to continue communicating without interruption form the addressed slave. No response is returned.

When the slave enters this mode, all active communications are turned off. All messages broadcast or

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 52 53

Commentaires sur ces manuels

Pas de commentaire

Despatch Protocol Plus Modbus Communications Manuel d'utilisateur Page 36

Commentaires sur ces manuels

Produits connexes et manuels pour Panneau de contrôle Despatch Protocol Plus Modbus Communications