This application combines all the functionality of the Ethernet Server with an SNMP V1 interface.
Hardware requirements:
EMACSYS control module.
EMACSYS Ethernet module.
I/O as required.
The appware comes complete with a set of web pages which may be downloaded as is to the EMACSYS or modified to suit your own requirements.
Using AJAX technology these page offer a range of features including real time updates so changes can be viewed as they happen.
The Ethernet Server part of the appware provides a simple method of monitoring I/O and controlling the 16 outputs via a local or wide area network. The application will serve web pages which can be viewed in any browser such as Internet Explorer, Firefox etc. No special software is required on the client thus providing a very flexible interface.
Some or all of the pages can be protected with a user / password combination providing a degree of flexibility by allowing some users access to limited areas and others to the full site.
The SNMP interface has facilities for sending traps to 2 separate servers and can have 2 independent read communities and 2 independent write communities.
Traps are sent when digital inputs and outputs change state. Analogue traps can be generated as the input value passes through one of two user defined thresholds and / or when the value changes by a user define amount.
Inputs and outputs may have there active state defined as being either a high or low level and the power up state of the output can be defined as either active or inactive.
The Graphical Status web page shows the current state of all the digital inputs and outputs providing a clear overview of the device. By clicking on one of the output icons the corresponding output may be toggled.
The page is regularly updated to show the status in real time.
Screen shot of the SNMP definitions page of the Interface Application.
Note that 2 SNMP servers may be defines as well as 4 communities (2 read communities and 2 write communities).
Analogue traps can be defined as level based or as a change of value or both.
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
