Browse Categories by 2011 July

Tip of the Month: Integrating MicroLogix to Catalyst via Modbus Protocol Over RS485

Posted by jBrown on Tue, Jul 26, 2011 @ 7:23 AM

When setting up the Modbus RTU Master/Slave over an RS485 network, a three-wire cable is required to connect back to the interface converter. The Simple NULL Modem cable with external +24 vdc power is recommended, but the Allen-Bradley 1761-CBL cable is also functional. To begin, plug the cable to the round eight-pin mini DIN receptacle and set the P10 Jumpers for RS-485 on the Catalyst. Parametric changes are also required within the RSLogix 500 and Alarmware to synchronize the Modbus Drivers. Here are the steps: 1. Connect the MicroLogix to your PC using the required 1761-CBL cable ... Continue Reading

Continue ReadingLeave a Comment Share This

Guard-It: Key Features and Benefits

Posted by jBrown on Thu, Jul 21, 2011 @ 6:30 AM

RACO’s Guard-It is a low-cost autodialer with flexible features for dependable alarm and remote monitoring. Users can configure four universal input channels for analog or digital signals, which are field-programmable at the system’s control panel. Upon alarm detection, the system calls a list of up to eight phone numbers. Respondents are given the station’s identity and specific alarm condition by a prerecorded voice message. In addition to standard office phones, the alarm sequence can also call pagers, cell phones or voice mail. Respondents can press a button on the phone’s ke... Continue Reading

Continue ReadingView Comments (1) Share This

Access the RACO Support Center With Your Mobile Phone

Posted by jBrown on Tue, Jul 19, 2011 @ 4:30 AM

RACO’s Support Center is now available through your iPhone, iPad or Android for easy and convenient onsite access. Now, workers can browse content while in the field and get answers to more than 500 frequently asked questions. Simply type in www.racomobilesupport.com for access. The mobile website functions similarly to the original—just search for questions using the “Support Center-Answer” tab, set up a user profile through “My Page” or create your own question with the “Ask a Question” feature. Additionally, users have access to manuals and specs, product info, installati... Continue Reading

Continue ReadingView Comments (1) Share This

Case Study: Hampton Water Works Co. and Salisbury Water Supply Co.

Posted by jBrown on Fri, Jul 15, 2011 @ 5:08 PM

Hampton Water Works Co. in New Hampshire and Salisbury Water Supply Co. in Massachusetts use the Verbatim Model VSS-8C Autodialer/Alarm Monitor for 24-hour surveillance of two municipal water distribution facilities. During system upgrades for both plants, workers installed the Verbatim autodialer to take over status and alarm reporting on nights and weekends. The monitor is programmed for 11 areas in the plants, which serve about 11,000 customers during peak summer months when daily water delivery nears 7 million gal. Critical monitoring areas comprise water levels in storage tanks and ope... Continue Reading

Continue ReadingLeave a Comment Share This

Tip of the Month: Integrating MicroLogix to Verbatim Gateway via Modbus Protocol over RS232

Posted by jBrown on Tue, Jul 12, 2011 @ 4:20 AM

The Verbatim Gateway system—interfaced with an Allen-Bradley MicroLogix family of PLCs containing a native Modbus RTU Slave driver—performs alarm and monitoring functions with existing wiring to PLCs as inputs via data communications. In order to facilitate data communications via Modbus RTU Master/Slave over RS232 data interface, RACO provides a NULL Modem serial cable, VAB-1. This cable has the RJ-45 connector required for the system. Below are instructions on how to integrate MicroLogix to Verbatim Gateway via Modbus Protocol over RS232. Communication setup for Allen-Bradley Mi... Continue Reading

Continue ReadingLeave a Comment Share This
Page 1 of 212