00196806-02_IM_EDM_1_10_en.pdf - 第12页

EDM V1.10 / Installation Manual 07/2011 Edition 3.3 Push mode In push mode , the data preparation engineer sele cts the data he or she wishes to make avail able to the lines they are responsible for. Und e r a graphical …

100%1 / 66
EDM V1.10 / Installation Manual 07/2011 Edition
3 Data transfer
SIPLACE EDM was developed to make it possible to store SIPLACE Pro data on a decentralized
basis. One requirement to fulfill to reach this goal is to guarantee an efficient, selective data
transfer from the Master Server to the Line Servers and in the opposite direction. Changes made at
the local level are integrated into the central database so that it contains data that is valid – i.e. as
up-to-date as possible – throughout production.
From a technical point of view, bi-directional data transfer is based on the import and export data
model in SIPLACE Pro, which is also familiar from SIPLACE Pro Desk and which can be performed
manually from the Desk.
SIPLACE EDM implements a process-based solution for data transfer. The program provides three
approaches to controlling and monitoring the data flow:
● pull mode
● forced pull mode
● push mode
3.1 Pull mode
On the one hand, the pull mode represents a stand-alone process controller for the data transfer,
and on the other hand, it serves as the basis for the forced pull mode. For this reason, this section
will only deal with the aspects common to both modes, and the following section will only deal with
the aspects specific to the forced pull mode.
The basic idea behind the forced pull mode as well as the "simple" pull mode is that the line
engineer is basically responsible for the production data and for the decision regarding which data
applies to the line since the line engineer is responsible for ensuring that the line produces.
To do this, the line engineer manually starts the pull mode via the SIPLACE EDM Client. He or
she selects the data to be transferred. The data preparation engineer, though, is provided with
configuration options he or she can use to actively intervene in the process (see section 5.4.1
Application templates). The data preparation engineer specifies what objects are available for each
line and what object types are to be overwritten when performing a download to the line. In general
terms:
– The data preparation engineer is responsible for the correctness of the object types overwritten
during the download.
– The line engineer is responsible for the object types that are not overwritten.
The data preparation engineer, however, has neither influence on whether or not the line engineer
pulls new data from the Master Server, nor when this data is pulled.
3.2 Forced pull mode
With forced pull mode, SIPLACE EDM provides an option of ensuring that the line data engineer
is always working with relatively up-to-date data. This mode allows for the specification of a
maximum time period between two downloads. This should ensure that the data on the lines is
never older than the prescribed time period. If no data is downloaded from the Master Server
during the time period defined, then the data preparation engineer is informed of this via a
SIPLACE EDM notification and can initiate organizational activities to ensure the data is
downloaded and up-to-date.
11
EDM V1.10 / Installation Manual 07/2011 Edition
3.3 Push mode
In push mode, the data preparation engineer selects the data he or she wishes to make available
to the lines they are responsible for. Under a graphical user interface, they use an application
template (see section 5.4.1 Application templates)) to select one or more line and the objects (e.g.
optimized recipes) that they want to transfer to the selected line(s). Depending on the settings in
the configuration, the line engineer is forced to accept these changes immediately or later, or can
reject them, or is simply informed of the receipt of changed data. With the EDM Data Transfer
Manager, the data preparation engineer always has an overview of the status of the individual
transfer packages on the EDM lines.
In contrast to the two pull mode variants, sovereignty over the status of the data in push mode
lies largely with the data preparation engineer.
Push mode and pull mode should be used independently. EDM can be operated in mixed mode
without problems.
12
EDM V1.10 / Installation Manual 07/2011 Edition
4 Installation
4.1 Requirements
4.1.1 EDM Master Server
Minimum Requirements
Hardware Intel Pentium 4.3 GHz
2 GB RAM
1 GB hard disk storage capacity
Network connection
Operating system Windows 2003 Server (SP2), Windows XP Professional SP3
(32-bit), Windows Vista SP2, Windows 7, Windows 2008 Server
(preferably 64-bit)
MSMQ runtime must be installed
SIPLACE Pro Version 9.3 Server installation
Microsoft SQL Server Preferably: SQL Server 2008, SQL Server 2008 Express Edition
Supported: SQL2000 SP 4, MSDE 2000 SP4, SQL Server 2005
SP3, SQL Server 2005 Express SP3
.NET Framework Microsoft .NET 3.5 SP 1
Table 4-1: EDM Master Server software requirements
CAUTION
Manually created maintenance jobs can be lost if SQL Server is updated.
13