Appendix: HART Specific Information
MSA
ULTIMA X ® Series
GB
123
Command #185: Write Alarm Acknowledge
This command writes an Alarm Acknowledge command to the ULTIMA X
Gas Monitor. The alarm acknowledge command instructs the device to clear any
latched alarms in the device, provided the setpoint level for the alarm has receded.
Valid command number is on 1.
Request Data Bytes
Response Data Bytes
Command-Specific Response Codes
Byte
Format
Description
0
Unsigned
Alarm Acknowledge command number
Byte
Format
Description
0
Float
Alarm Acknowledge command number
Code
Class
Description
0
Success
No Command-specific errors
1 - 2
Undefined
3
Error
Parameter too large
4
Parameter too small
5
Error
Too few data bytes
6 - 15
Undefined
16
Error
Access restricted
17 - 31
Undefined
32
Error
Busy
33 - 127
Undefined