Technical Reference Manual - InduSoft

Communication with Other Devices
The MAIN DRIVER SHEET dialog displays (see the following figure).
Sample MAIN DRIVER SHEET
The MAIN DRIVER SHEET worksheet is divided into two areas:
• Header area (top section), contains parameters that affect the all tags configured in the Body area of this
worksheet; and
• Body area (bottom section), where you define the relationship between tags in the project and their field
equipment address.
Use the Header area parameters as follows:
• Description field: Type a description of the MAIN DRIVER SHEET for documentation purposes.
• Disable field: Type a tag or an expression to enable and disable the communication of each MAIN DRIVER
SHEET on the fly.
• Type a value (or expression result) that is greater than zero to disable the MAIN DRIVER SHEET.
• Type a zero (or leave this field blank) to enable the MAIN DRIVER SHEET.
• Read Completed field: Type in a tag and the communication driver toggles the tag when it completes a read
command.
• Read Status field: Type in a tag, which is updated with the status of the last read command.
• Write Completed field: Type in a tag and the communication driver toggles the tag when it completes a write
command.
• Write Status field: Type in a tag, which is updated with the status of the last write command.
• Min and Max checkbox: Click (check) to specify minimum and maximum values for data from the field
equipment.
• Min and Max fields (become active only when you enable the Min and Max checkbox): Type a range of values,
which can be converted into an engineering format.
The project uses these fields to determine a minimum/maximum range of values for data from the field
equipment. The scaling is done automatically. You must configure the engineering range using the Min and
Max parameters on the Tag Properties dialog. This range affects all tags in the worksheet, except those with
customized Min and Max values, as specified in the Body area of the driver sheet (Min and Max columns).
Use the Body area parameters as follows:
• Tag Name field: Type the name of a project tag to be used by the communication driver.
• Station field: Type the number of the equipment station within the network. The syntax in this field varies
with each communication driver. Refer to the appropriate driver's documentation for further information.
Tip: For some drivers, if you've configured the driver to do serial encapsulation via TCP/IP or
UDP/IP, then the station may be specified using the following format:
IP_address:port_number|station
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