5.2.5.2            Parameter Name

Users and operators will reference the elements in a block by appending the parameter name to the Block Tag name, for example,  Blockname:parametername . You should pick a parameter name that will be meaningful to ordinary users and operators. Do not include blank spaces within your parameter name.

For example, a Foxboro 761 device:

TIC101:RL for the Remote Local State of a Temperature controller,
TIC101:AM for the Auto Manual State
TIC101:DO for the Discrete output of the controller.

Range:                    up to 7 alphanumeric characters.
Field Type:            Text
Tag field:               .PNAME

Figure 5-12 Parameter Name AM, DI, DO, on tag TIC101