ProSoft Technology ProSoft 1560 Bedienungsanleitung PDF herunterladen (Seite 4)

Modbus Connectivity

• RTU and ASCII modes

• Independently congured

ports operating as Master

and/or Slave

• Continuous polling of

Command List

• Ideal for SCADA and

Modbus device interfaces

(transmitters, drives, ow

meters)

Example Application: User requires Modbus connection from an Allen-Bradley platform

to Modbus-compatible devices or SCADA systems.

Modbus module operating

as Master and Slave

Modbus

Solution: MVI56-MCM for ControlLogix™

MVI56-MCMR for ControlLogix remote chassis

MVI46-MCM for SLC™ 500

MVI71-MCM for PLC-5™

MVI94-MCM for FLEX I/O and FLEXLogix™

MVI69-MCM for CompactLogix™

3100-MCM for PLC

3150-MCM for SLC

ASCII Connectivity

• Connect to serial devices

• Ladder programmed and congured

• 2 serial ports (1 port on FLEX)

• Read/Write ASCII data

• Built-in data analyzer

• Supports RS-232/422/485 connections

Example Application: User requires connectivity to

serial (ASCII) RS-232, 422, 485 type devices: barcode

scanners, weigh scales, text displays, RFID tags, etc.

Solution: MVI56-GSC for ControlLogix

MVI46-GSC for SLC 500

MVI71-GSC for PLC-5

MVI94-GSC-E for FlexLogix/FLEX I/O

MVI69-GSC for CompactLogix

MVI56-GSC

Barcode Scanner

Printer

Drivers

Text Displays

DH-485 Connectivity

• Connect to SLC 500 processors

• Read/Write Data

• Single-slot module

• Ideal for existing applications

Example Application: User requires addition of DH-485

connectivity to ControlLogix providing connectivity to an

SLC on DH-485.

Solution: MVI56-DH485 for ControlLogix

MVI69-DH485 for CompactLogix

DH-485

MVI56-DH485

SLC

Water Flows in Iraq

In Badaah, Iraq, David Watts adds nishing

touches to his work in the Nasiriyah Water

Treatment Plant,his home away from

home for nearly eight weeks. The largest

water treatment facility in Southern Iraq,

the Nasiriyah Plant supplies 10,000 cubic

meters per hour of fresh drinking water to

approximately three million Iraqis.

When Watts arrived in Iraq, he discovered

Allen-Bradley PLCs to be limited in their

programming with only 10 percent

completed. The Modicon Quantum PLC was

roughly 80 percent ready.

“The GUI was also limited and static in its

appearance and function,” Watts said. Individual

ControlLogix processors were placed at the

three pump stations along the Garaaf River.

The fourth ControlLogix was placed in the

control room to function as a SCADA host

for the plant. The Quantum PLC, which has

20 Remote I/O drops, was used to control the

backwash of 20 individual lter cells.

“Then came the problem of getting the

Quantum PLC to communicate with the

ControlLogix,” said Watts. “I had never

used a ProSoft Technology® interface

module before. And, of course there were

no manuals or cables on location to help me

with this, so I called ProSoft Tech Support.”

ProSoft Technical Support Engineer Scott

Lee answered the call. “You could tell right

away that he had his hands full,” said Lee.

“But he obviously knew how to program

and only needed a little nudge in the

right direction to get the ProSoft Modbus

Interface up and running.”

The Plant takes water from the Garaaf River

and delivers it into 10 large clariers to

allow the sediments to settle. Alum is then

mixed with the water to allow any remaining

particles to coagulate prior to sending the

water to the occulators. Next, the partially

cleaned water is sent to sand lters where a

majority of the bacteria is removed. Finally,

chlorine is added to kill any remaining bacteria

and the water is sent to 2 underground storage

tanks. The new plant went online in early

2007. “This new water facility rivals any state

of the art water treatment plant we have in the

States,” said Watts.

Application Story

Serial Protocol Communication Solutions

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