Getting to know GPRS Modem Networks

Cellular communications is becoming increasingly popular for industrial process applications in the case when traditional wired and wireless communications are not feasible. The advantage of using a cellular network is that it provides access to devices anywhere a cellular connection exists. Not all cellular networks will permit machine to machine or continuous always on connections without special prior permission. At times the cellular network require some special certification to verify that no harm will come to the cellular network. The main reason behind this is the fact that machine to machine cellular communication has the ability to monopolise the network bandwidth, thus reducing the network access for the carrier’s human customers.

MPC-143

SMS:

On the other hand GSM networks users are billed by time which can tend to become quite expensive and costly when transmitting data, since the connection times are likely to be lengthy. The SMS text messages is a good alternative to send data in the form of messages over the GSM networks. It is possible to use text messages to send alarm notifications from remote locations. It is possible to utilize industrial modems that include digital input connections that will initiate a pre-programmed message to be sent to a preset phone number, thereby notifying a technician or operator of an alarm condition. In addition to which AT commands can be used via this communication method to initiate a digital output on the modem or to reset the alarm.

Implementation:

If the application being implemented requires that the remote device periodically report the status update by exceptions, then dynamic IP service can be used. One of the most robust approach is called Virtual Static IP (VSIP). With VSIP smaller deployments can be assigned fixed internet addresses that are protected behind firewalls so that only a designated host can access these devices. Eventhough these devices still assigned dynamic addresses, they are tracked so that they can always be mapped to the fixed address. Modbus GPRS device may require this kind of service.

About Author:- Johanna Williams

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Other modbus gprs modem related post:

1. Communication Over GPRS

2. An Overview of Program Logic Controllers (PLC)

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Communication Over GPRS

Modbus is a serial communication protocol which was published by now what is Schneider Electric way back in 1979. The main purpose of Modbus is that it can be used with programmable logic controllers (PLCs). It is very simple to used and robust and has become a standard communication protocol. This is commonly available means of connecting industrial electronic equipment. There are many advantages using this; one of the reasons being that it was developed with the industrial applications in mind. Besides which it is royalty free as well. This is one protocol that is easy to deploy and maintain as well. It has the ability to move raw bits or words without placing many restrictions on the vendors.

MPC-143

It is possible to communicate between many different devices connected to the same network via Modbus. In the case where the temperature and humidity is being monitored by sensors it is possible to communicate the results to a computer. In addition to which Modbus can also be used to connect a supervisory computer with a remote terminal unit (RTU) in  data acquisition system. It is also possible to communicate the results via GPRS.

The GPRS modbus / EDGE communication medium is found widely used in industrial applications. For example it can be applied in systems like energy networks, running water networks, managing traffic, weather and construction of LAN VPN networks.

Advanticsys is a company that has a background in information and communication technologies especially in the field of wireless sensor networks and industrial remote monitoring system. Since it was established in 2009 Advanticsys has been contributing to the ICT market expansion across technological innovation development by applying new concepts and ideas. Thus Advanticsys is able to offer a customized solution based on what is available and feasible in the field of remote monitoring systems. For example Advanticsys offer the product MPC-333 which features the Modbus TCP Ethernet, Modbus Ethernet data-logger, GSM/GPRS LAN with digital inputs. The main features includes a data-logger controller developed to communicate with many common protocols like M-Bus, Modbus TCP Ethernet, Modbus TCP/IP, etc. The MPC-333 can also measure and store different kinds of discrete signals.

About Author:- Johanna Sophia

Hi friends, I am interested in writing about science, technology & Web related stuff. Follow me on Twitter, on Google +Johanna,and/or become a friend on StumbleUpon .

Other gprs modbus related post:

1. An Overview of Program Logic Controllers (PLC)

If you like this blog, please Plus it, Like it, Tweet it, or best yet, link to it.