Issue:

How to use "Short Pulse" and "Long Pulse" command on BMXNOR0200H RTU module ?

Product Line:

BMXNOR0200H RTU module.

Environment:

EcoStruxure Control Expert, Windows 10

Resolution:

To use the Short Pulse command, ensure that the same variable type (C_SC) is configured on both client and server side, with identical IOA settings.

Additionally, the pulse duration must be defined on the server.

EXAMPLE: Using 2 BMXNOR0200H modules:

• Server IP: 192.168.30.1
• Client IP: 192.168.30.2

We will configure a variable on both the server and client side, with "Type Identification" set to C_SC and "IOA" set to 2.

On the server, the "Short Pulse" duration will be configured to 100 ms.

SERVER:

CLIENT:

Using a configuration where both the client and server variables are set with Type Identification = C_SC and IOA = 2, and the server's 'Short Pulse' duration is configured to 100 ms:
When the client variable command1.Value changes from 3 to 1, the server variable commande_server.Value will activate for 100 ms, then automatically return to its initial state.

A network capture performed with the Wireshark tool confirms the communication exchanges between the server and the client :

This behavior can be validated using the Trend tool in EcoStruxure Control Expert, which provides a visual confirmation of the temporary change in the server variable:

Details of the command to be send:

The example below using "Command.Value" variable:

• To send a command, we need to trigger the value of the low byte (8 bits) of the %MW register.
• The value to be transmitted is the value of the lowest bit of this %MW register :

The point size of C_SC_NA point is 1 bit, as detailed below :

The command result will be available in the "Command.Status" variable. For more details regardins its different values and their corresponding description, please refer to page 265 of the user manual:

Released for: Schneider Electric Canada