GE PACSystems RX7i, User Manual

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Chapter 1. Introduction
GFK-2224Q January 2017 9
Built-In Web Server
The embedded RX7i CPU Ethernet Interface provides Web Server capability. Each IC698 Ethernet interface
supports Web access via FTP and HTTP to allow Web pages to be stored and maintained on the Ethernet
interface and served up via the web to standard Web browsers. A standard API allows you to generate
customized web pages that display desired PLC data in a desired format. You store the Web pages to the
Ethernet interface via FTP. A basic set of predefined Web pages in English are provided; they include a home
page, Reference Table data, Controller Fault Table, and I/O Fault Table. Rack-based Ethernet Interface modules
do not provide Web Server capability.
SRTP Client (Channels)
SRTP Client allows the PACSystems PLC to initiate data transfer with other SRTP-capable devices on the network.
SRTP channels can be set up in the PLC application program. SRTP supports COMMREQ-driven channel
commands to establish new channels, abort existing channels, transfer data on an existing channel, and
retrieve the status of an existing channel.
Any given channel can be assigned to only one protocol at a time. For the number and combinations of
channels supported, refer to “Ethernet Interface Specifications” on page 5.
Modbus TCP Client (Channels)
Modbus TCP Client allows the PACSystems PLC to initiate data transfer with other Modbus TCP server devices on
the network. Modbus TCP channels can be set up in the application program. The Modbus TCP Client supports
COMMREQ-driven channel commands to open new channels, close existing channels, and transfer data on an
existing channel.
Any given channel can be assigned to only one protocol at a time. For the number and combinations of
channels supported, refer to “Ethernet Interface Specifications” on page 5.
Ethernet Global Data (EGD)
EGD Classes:
•
EGD Class 1 is configured exchanges with no logic control of EGD operation.
o
Supported in CPE305/CPE310/CPE330/CPE400
•
EGD Class 2 is EGD Commands which are logic driven EGD exchanges using COMMREQs.
Each PACSystems CPU supports up to 255 simultaneous Ethernet Global Data (EGD)
1
exchanges. EGD exchanges
are configured using the programmer and stored into the PLC. Both Produced and Consumed exchanges can be
configured. PACSystems Ethernet Interfaces support both selective consumption of EGD exchanges and EGD
exchange production and consumption to the broadcast IP address of the local subnet.
Note: For Broadcast addressing a Subnet value of 0.0.0.0 is NOT supported.
The ETM001 module Ethernet interface can be configured to use SNTP (Simple Network Time Protocol) to
synchronize the timestamps of produced EGD exchanges.
The embedded Ethernet interface on the CPE305, CPE310, CPE300 and CPE400 also support the SNTP (Simple
Network Time Protocol) via PME hardware configuration. Refer to Configuring the Ethernet Interface Parameters
Beginning with release 2.00, the ETM001 module Ethernet interfaces implement the capabilities of a Class 1 and
Class 2 device. COMMREQ-driven EGD Commands can be used in the application program to read and write
data into PACSystems PLCs or other EGD Class 2 devices.
ETM001 module releases 5.5 and later support Run-Mode store of EGD so that you can add, delete or modify
EGD exchanges without stopping the controller. For details on using this feature, refer to “ Run Mode Store of
EGD ” in Chapter 5.
Run-Mode store of EGD is also supported in the CPE305/CPE310/CPE330/CPE400.