Allen-Bradley Driver Tag Type Properties: Type Tab

The Type tab for an Allen-Bradley driver tag properties folder consists of attributes used to identify the type of Allen-Bradley programmable logic controller that this driver will represent.

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PLC Type

The PLC Type section enables you to select the type of Allen-Bradley PLC that this Allen-Bradley driver tag will represent. This may be one of:

•    No Type Selected  <default option>

•    PLC-2 

•    PLC-3 

•    PLC-5 

•    PLC-5/250

•    SLC-500

•    ControlLogix

 Note: The ControlLogix driver is used in SLC-500 addressing. The TCP/IP port number to use for this driver is 44818.

PLC Address

The PLC Address field indicates the address of the Allen-Bradley programmable logic controller. One of the following 3 formats is permitted. (Note that this address must be provided in octal.)

•    012                  (octal)

•    034 0357         (octal with a bridge address)

•    1.2.3.4 (IP address)

The PLC Address field and the TCP/IP Address fields are linked, and therefore are completed simultaneously. When you enter an address in the PLC Address field, the same address is automatically entered in the TCP/IP Address field on the TCP/IP tab for this tag. Conversely, when you enter an address in the TCP/IP Address field, the same address is automatically entered in the PLC Address field.

Number of Virtual Words

Use this field to specify the number of registers that the virtual PLC will create. The virtual PLC will then emulate a PLC-2 and respond to requests to read and write data.