Micromod MOD: 1800P - MOD 30ML Identity Module (Version 2) System, I/O and Communications Functions - Manual (Page 116)

Logic Functions - Book 1
MODCELL SERIAL COMMUNICATION BLOCK
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87 Write Message Action (WRACT) ...................................................................................... CWR
This value indicates the action that will be taken if a message times out.
NO 0 Discard message and return NAK code “TIME EXPIRED MSG
DISCARDED”
YES 1 Return NAK code “TIME EXPIRED MSG PROCESSED”. The
message will be processed when it can but it may or may not be
accepted.
88 Foreground List (FG) ........................................................................................................C – R
Connect a Configured List block (LISTOUT) to the FGLISTIN connection of this block to
specify foreground data (FG value = occurrence number of the CL block). This data will also
be included in any interface files you build for this port at compile time. In Logic Controller
versions 1 - 4, Regulatory Controller versions 1 - 3, and Batch Controller version 1, foreground
data can't exceed 246 bytes (when packed). In all other MODCELL versions, foreground data
can't exceed 2400 bytes (when packed).
NONE 0 Indicates there is no list attached.
10-4096 Occurrence number of the configured list block
Background List
To allow a host PC access to background attributes, the Application Builder allows for a
connection from a configured list block (LISTOUT) to the BGLISTIN for this block. This data
will also be included in any interface files built for this port at compile time.