Block errors, Naming conventions – Rockwell Automation 1757-FFLD Linking Device Configuration Manual User Manual

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Publication 1757-PM002A-EN-E - June 2006

3-4 Basic Function Blocks

Block Errors

The BLOCK_ERR parameter gives a non-specific reason for the block being
in error. The most common errors have to do with a block being Out Of
Service. There are various other block-specific reasons for certain blocks to be
in error, including ranges being required and logical parameters needing to be
set.

To find a specific error given by the BLOCK_ERR parameter, reference the
function block in the Function Block Manual, or your specific vendor’s
manual.

Naming Conventions

When discussing naming conventions, the standard for the facility takes
precedence. However, when naming devices on your H1, one should try to
incorporate either the device type (temperature transmitter, pressure
transmitter) or the serial number of the device within the name.

When a device first comes up on the live list and makes the connection to
RSFieldbus, the ID field contains Device Description (DD) information. The
specific serial number that is sought is in the last 4 numbers of the string.
These numbers are the unique serial number for that device. It is this number
that we recommend be incorporated with the tag name somewhere.

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