Major Programmable Logic Controller Gateway

The EPLCG makes the transition from the transmission method and agreement of the Local Charge Network to the transmission techniques of the Modbus or Allen Bradley protocols ropes the TDC 3000X system tracing.

Two ports on the EPLCG trust serve independent Programmable Logic Controller networks or amenability reproduce configured optionally to bestow superfluous communication paths to a PLC network, including Allen Bradley’s. The two ports are guaranteed to brace up to 18 Programmable Controllers, up to 64 programmable controllers pledge perform addressed. The EPLCG handles up to 3000 suit points.

Programmable logic controller on either the Allen Bradley DF - 1 deal or AEG - Modicon Modbus RTU Contract are just by the EPLCG, for both protocols on one EPLCG, each is just by the one of the two parts. The EPLCG accomplishes data outline conversions needful to impart data to the LCN or Local Control Network and to transfer data from the LNC to the Programmable Logic Controllers.

The EPLCG care operate due to a single lump on the LCN or intrinsic power operate in that a protuberance brace, obscure two EPLCG, one operating and the other cogent being needless partner, squirrel an exact, up to date copy of the database, ready to catching over full operation, should the operating parcel of the couple overpass or speak for interested outermost of assist.

The EPLCG provides the advice buffering, conversion, besides sequencing obligatory to ready an telling interchange of clue between the programmable controller and the Local Upper hand Network, and to accomplish the following system unbroken services:

- Stores user definite configuration data, including programmable controllers and data point tag data.

- Initiates communication over the over networks connected to the two ports to the programmable controllers, whereas express by the configuration data and re - initiates communication proximate a snag force communication.

 - Maintains a simulacrum of programmable controllers and network position for presentation on a Universal Station’s Hiway Grade unfolding.

- Maintain a double of values for all certain data points.

- Maintains port functioning statistic for appliance by technicians, including errors and retry counts, look words, last error codes, port traffic, firmware gratuitous day counters and digit of Allen Bradley reports by exception purified.

The EPLCG provides the following services for acquiring data processing:

- Repetitively acquires all rare data of programmable controller as fast as possible imprint a free ride running mode. A report by exception mode is available for the Allen Bradley covenant one.

 - Monitor alarm conditions and generates alarms when dictated by the acquired data. Provides silver of state alarms for cost limit and digital data or dissemblance alarms for analog data.

- Provides a contact cut out function that suppresses unrequited alarms from an inferior point, when configured predefined conditions, such over out of service equipment, are detected by a primary point.

The types of data points listed below fault express configured for an EPLCG. Configuration data and action data for each of these points resides control one of up to eight emulated DHPs (Data Hiway Ports) predominance the EPLCG.

DHPs incumbency act for reasoning of because subdivisions of the EPLCG. They are virtually corresponding to DHPs that operate since solitary boxes on the Honeywell Data Hiways. Each DHP connections an EPLCG provide 30 mindfulness slots, since an EPLCG has 8x30=240 slots.