Alarm callout systems are imperative for industrial operations. An alarm callout system typically involves a server or device that polls and monitors a sensor or a system for certain conditions or thresholds. When the server or device detects an anomaly, a Voice, SMS, and/or Email report is sent to a user that signal a problem [...]
When dealing with fluctuating data rolling averages are needed to even out the highs and the lows. For example a methane detector could bounce between 9% and 11% LEL with very little change in the actual methane in the air. An alarm set at 10% would constantly be alarming and then clearing causing operators or [...]
Choosing the correct wattage for Converting Analog Input 4-20mA to 1-5V is very important. With higher DC voltages you can quickly reach the upper limits of your resistors and possibly blow them up. For understanding how to convert 4-20mA to 1-5V Analog Inputs see our blog post converting analog input 4-20ma to 1-5v. Calculating [...]
SCADACore announces the release of their own Heat Stress Alarm Station. The SCADACore Sentinel Online Heat Stress Alarm Station provides users with the ability to set local alarms to trigger beacons and sirens alerting employees of potentially dangerous working conditions. The Alarm station is perfect of landscaping, mining operations, factories, ship yards, or any [...]
For someone that uses roclink as much as me it can get tedious having to enter the default User ID (loi) and Password (1000) over and over again. There is a little known Roclink 800 Login Shortcut Key that can help save you a few seconds each time you try to login. At the RocLink 800 [...]
There are essentially 2 ways to read Analog inputs: reading current or reading voltage. Current is generally the most common because it can reach longer distances across the wire without losing analog input signal. Voltage, on the other-hand, will degrade over long distances producing inaccurate readings. When working with devices that only read 1-5V [...]
SCADACore uses several different forms of cellular communication for the SCADACore Live and Sentinel products. Unless you are very familiar with these products you probably do not know of their strengths and weaknesses. At SCADACore we deploy thousands of these modems so we have a good idea when to use and when to avoid [...]
SCADACore has released a new Field app to help users determine Checksum's of interfaced devices. It is often difficult to interface with device that have unknown protocols. With the Checksum CRC Calculator users can now calculate the CHECKSUMs and CRCs of a string to determine what checksum formula is being used.The Calculator is Available Here: Online [...]
CDMA Network End Of Life Cellular providers accross North America have standardized on the GSM network for a variety of reasons (http://www.pcmag.com/article2/0,2817,2407896,00.asp). As consumers we are left to find a solution to the end of life of the CDMA network. For the US this means that old hardware that used [...]
There are two separate representations of the Roclink “registers” called TLPs (Type/Logical/Parameter). They can be viewed as either Text such as AIN A1, EU – Analog Input, A1, EU value, or they can be viewed as the more commonly used numeric format 3,0,14. The Roclink Protocol Manual will use the [...]
