Emerson DL8000 - Page 157

DL8000 Preset Instruction Manual
Revised February-2016 Communications Protocols D-29
Clear Display
[0x38]
Flags Immediately Set
None
Flags Immediately
Cleared
None
Exceptions
 Passcode Entry in Progress
 Operating Mode is Manual
 K&D Locked Out
Supporting
Parameters
None
Results
Clear existing screen and display “Please wait”
until next command is received. The alarm and
date-time continue to display.
Report Alarm
[0x3D]
Raises alarms based on reset alarm ID [63,0,173]. Possible uses of this
command are:
 Raising an alarm based on conditions that are either not input to or not
detectable by the DL8000 (such as a fire detection system or a PLC being
used to monitor a rail car’s position).
 Stopping a batch with a situation-specific message. In this case, the TAS
might configure a safety circuit alarm message via communications and
then raise the corresponding safety circuit alarm. The TAS can reset the
alarm using the reset primary alarms command [0x14].
Note: A TAS should not depend on DL8000 alarms to prevent or control
hazardous or life-threatening conditions.
Flags Immediately Set
Primary Alarm (if primary alarm is raised)
Flags Immediately
Cleared
None
Exceptions
 Invalid alarm ID
 Unable to set or reset alarm
Supporting
Parameters
Reset alarm ID [63,0,173]
Results
Batch may stop due to reported alarm.