Alfa

Summary Information

Communication Driver Name: Alfa 
Current Version: 1.0.0.3
Implementation DLL: T.ProtocolDriver.Alfa.dll
Manufacturer: Alfa Instrumentos

Channel Configuration

Protocol Options

Not used in this driver

Settings

Serial Channel:

Default configuration for the AA communication protocol:

• • Server Mode: False
  • Accept Unsolicited: False

Default configuration for the TRC communication protocol:

• • Server Mode: True
  • Accept Unsolicited: True
    

Set the other fields according to your configuration.

TCP/IP Channel:

Node Connections: Defines the maximum number of parallel requests that will be sent to each node (asynchronous communication)

Node Configuration

Station Configuration

Serial Channel:

Configuration for the AA communication protocol: 

• • Station syntax: <Address>
  • Where:

<Address> = Device address in the network (01-99)   

E.g.: 03

Configuration for the TRC communication protocol:

• • Not used for this protocol. The Driver will receive every message from the network. 

TCP/IP Channel:

• Station syntax: <IP address>;<Port number>;<Address>
• Where:

<IP Address> = IP address of the scale in the Modbus network

<Port Number> = TCP port where the device is listening

<Address> = Device address in network (01-99)   

E.g.: 192.168.1.101 ; 502 ; 1

Example Node Configuration

Point Configuration

Address

The syntax for the Alfa communication points is:  <Type>

Where:

<Type> indicates the part of the message that will be stored in the configured Point

The valid types are:

• Tare: Returns only Tare value
• Weight: Returns only Weight value
• Return: Returns full message

Example Points Configuration

E.g.: For a typical message like ’PB: 00,254kg T: 00,000kg’, each Point shown in the above table will receive the following data:

Scale1 FullMessage= PB: 00,254kg T: 00,000kg

Scale1 Weight= 00,254kg

Scale1 Tare= 00,000kg

Troubleshoot

The status of the driver execution can be observed through the diagnostic tools, which are:

• Trace window
• Property Watch
• Module Information

The above tools indicate if the operations have succeeded or have failed. A status of 0 (zero) means communication is successful. Negative values indicate internal driver errors, and positive values indicate protocol error codes.

Error Codes