Product Description XI/ON - Eaton Automation
Product Description XI/ON - Eaton Automation
Product Description XI/ON - Eaton Automation
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<strong>XI</strong>/<strong>ON</strong>: Gateways for Modbus TCP 5 Implementation of Modbus TCP<br />
5.6 The Service-Object<br />
The service-object is used to execute one-time or acyclic services.<br />
It is an acknowledge service which may serve, for example, to<br />
parameterize an I/O-module.<br />
2000h 2080h 20FFh<br />
service request area service response area<br />
The service request area allows write access, the service response<br />
area only read access.<br />
Service request area<br />
2000h 2001h 2002h 2003h 2004h 2005h 207Fh<br />
service<br />
no.<br />
reserve<br />
d<br />
service<br />
code<br />
index/<br />
addr<br />
dataregcount<br />
optional data<br />
(0 to122 registers)<br />
The register service no. in the request area can contain a user<br />
defined value which is deleted after the execution of the service.<br />
The register service code specifies which service is requested.<br />
The register index/addr is optional and the meaning depends on<br />
the particular service.<br />
The register data-reg-count contains, depending on the service,<br />
the number (0 to 122) of the transferred or of the requested data<br />
registers.<br />
Depending on the service, the optional data area can contain additional<br />
parameters and/or other data to be written.<br />
76 M001973-01, 07/2007
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