Emerson DL8000 - Page 179

DL8000 Preset Instruction Manual
Revised February-2016 Communications Protocols D-51
Display Message
[0x1C]
Displays to the DL8000 operator either an informational message or a prompt
message designed to get some input data.
The DL8000 prompts the operator with display data message text received in
the command request frame [63,0,175] to enter/request data before
authorizing a new batch. It clears data item [63,0,177].
The prompt field width received in the command request frame is limited
between 0 to 8. If its value is less than 0, then 0 is assumed; if its value is
more than 8, then 8 is assumed.
If the prompt field width is zero then it acts as a pure informational message
command. If the prompt field width is non-zero then the operator can use the
rest of the number of characters for the data. Pressing the Clear key clears
the input field and restarts input entry. Pressing the Enter key terminates input
entry. If an operator presses Enter when the input field is blank, the keypad
data available to the automation system a value of 0.
If the timeout time received in the command request frame is less than 0, then
the DL8000 uses the configured timeout time [63,0,171]. If timeout is set as
zero then a timeout never occurs (that is, a message or prompt displays until
the DL8000 receives a Timeout Operation command [0x05]). If timeout value
received is greater than 0, then use received timeout value.
Valid input control values are:
0 = Display Numeric keys on display
1 = Display an asterisk (*) for each numeric key pressed
Flags Immediately Set
K&D Locked Out
Flags Immediately
Cleared
 Operation Timed Out
 Keypad Data Available
Exceptions
 Passcode Entry in Progress
 Batch in Progress
 Primary Alarm
 Operating Mode is Manual
 K&D Locked Out
Supporting
Parameters
 Prompt width [63,0,176]
 Timeout time [63,0,171]
 Display message input control [63,0,253]
Results
The operator has to enter auxiliary data item within
configured 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,
the DL8000 displays a "Timeout Operation"
message and waits for the next TAS command.
Once the operator enters auxiliary data item, the
DL8000 clears the Operation Timed Out and K&D
Locked Out flags. It also sets the Keypad Data
Available flag, which tells the TAS that the
operator has entered data. The DL8000 displays a
“Data Entered” message and waits for the next
TAS command.