Emerson DL8000 - Prompt Recipe (0 X01)

DL8000 Preset Instruction Manual
D-16 Communications Protocols Revised February-2016
“Supporting Parameters” section of each command description. Other
parameters used in the execution of the command are described as well.
The TAS writes commands using the Modbus write to TA command
[63,0,166]. The DL8000 first checks for all types of exceptions for a
given command. If any exception is raised, the DL8000 then writes an
exception code [63,0,168]. An exception causes the DL8000 to
terminate further execution; otherwise, it executes the complete
command. A value of 255 indicates no exception.
If the DL8000 finds no exceptions during the processing of a command,
it sets and resets any required status flags [63,0,119] and controls the
DL8000 based on the command.
Apart from this, the TAS can use Modbus read and write function codes
for the following activities:
 Configuration of DL8000
 Reading status flags and totalizers
 Reading alarm status
Prompt Recipe
[0x01]
Allows the TAS to let an operator select a recipe at the DL8000. The
command locks out the keypad and display (K&D) to the TAS.
The DL8000 displays a recipe selection screen to operator on which the
recipe names displayed starting from first recipe up to the number of recipes
[63,0,26] configured. The operator has to select a recipe within the timeout
time [63,0,171]; otherwise the operation aborts and sets the Operation Timed
Out flag (bit 3 in [63,0,119]). If a timeout occurs, it blocks any further recipe
selection.
If you set the timeout to zero, then the timeout doesn’t occur. You must then
use the Timeout Operation command (0x5) to end this operation.
The TAS can change the recipe selection by writing its own value at [63,0,10]
(using the Modbus write function code), but only when the transaction is not
authorized and the Operation Timed Out flag is not set.
Flags Immediately Set
K&D Locked Out
Flags Immediately
Cleared
 Operation Timed Out
 Recipe Selected
Exceptions
 Transaction Authorized
 K&D Locked Out
 Primary Alarm active
 Operating Mode is Manual
 Passcode Entry in Progress
Supporting
Parameters
Timeout time [63,0,171]
Results
When an operator selects recipe, the DL8000 sets
the Recipe Selected flag (bit 4 in [63,0,119]) to tell
the TAS that it can read the recipe selected. The
TAS can read selected recipe [63,0,118] using
Modbus read function code.