UM353-1B
Introduction
April 2012
1-3
When even more I/O is needed for multiple-loop applications, advanced control, or batch sequencing, Modbus/TCP
Ethernet can be used to connect remote I/O. The standard Ethernet capability of the 353 provides connectivity to a
large selection of standard Modbus/TCP Ethernet I/O products that provide analog inputs and outputs and digital
inputs and outputs using solid state technology.
Although the Siemens 353 can be connected to and operated entirely from a central operator workstation, such as
i|station, a controller faceplate is included. This local operator interface is for applications where loops need
individual attention during startup, troubleshooting, maintenance, or emergency conditions. The convenient
faceplate layout and sophisticated software allow process and configuration changes to be made quickly and easily.
The controller can be completely configured from the operator faceplate or, as mentioned above, configured
remotely using i|config, the optional PC-based Graphical Configuration Utility. A MultiMediaCard (MMC) can be
used to transfer a configuration from one controller to another or between a PC running i|config and a controller
when downloading a configuration over a network is not available.
Network communication options are listed in the following table.
Protocols
Available
Connection
Option Board Needed
Modbus
Standard
Rear Terminals, NCA and NCB
None
Modbus/TCP Ethernet
Standard
Rear Panel, RJ-45 (case option 4)
None
Ethernet supports uploading and downloading of controller configurations over the Ethernet LAN. For example, if
i|config Graphical Configuration Utility is loaded on the local client shown in Figure 1-2, controller configurations
can be developed on the client, or uploaded from the controller for editing, and then downloaded to the controller.
Data can also be acquired from remote servers for the purpose of archiving and/or data mining.
The Ethernet-Modbus Bridge in Figure 1-2 accepts an Ethernet data command from the controller and outputs an
equivalent Modbus command to a Modbus device at address 1. The returning Modbus data is embedded by the
bridge in an Ethernet packet to be sent to the requesting controller.
Regardless of the selected communication option, the RS232 port on the underside of the Display Assembly will
communicate using Modbus.
For small retrofit applications, the Siemens 353 with operator faceplate is a replacement for a simple stand-alone
single-loop controller. It is easily upgraded with additional local I/O for advanced control strategies. Ethernet can
extend the I/O capability of the controller ever further in data acquisition applications.
Ethernet network with switches, hubs, routers,
and gateways as needed for network connections
Multiple Siemens
353 and Procidia
353R Nodes,
MG
005
0
1a
i|station
(i|config)
Ethernet-Modbus
Bridge
Foreign Device with
Modbus Communications
Modbus
Ethernet Capable
I/O Modules
Siemens SIREC
Recorder
Figure 1-2 Ethernet Architecture Example
Содержание 353
Страница 12: ...Contents UM353 1B x April 2012 ...
Страница 22: ...Introduction UM353 1B April 2012 1 10 ...
Страница 30: ...Configuration Overview UM353 1B April 2012 2 8 ...
Страница 122: ...Function Blocks UM353 1B April 2012 3 92 ...
Страница 168: ...Data Mapping UM353 1B April 2012 6 28 ...
Страница 204: ...Controller and System Test UM353 1B April 2012 9 8 ...
Страница 222: ...Calibration UM353 1B April 2012 11 4 ...
Страница 226: ...Circuit Description UM353 1B April 2012 12 4 ...
Страница 238: ...Model Designation and Specifications UM353 1B April 2012 13 12 EC Declaration of Conformity ...
Страница 239: ...UM353 1B Model Designation and Specifications April 2012 13 13 Annex A to the EC Declaration of Conformity ...
Страница 240: ...Model Designation and Specifications UM353 1B April 2012 13 14 ...
Страница 244: ...Abbreviations And Acronyms UM353 1B 14 4 April 2012 ...