Universal Commands; Common Practice Commands; Supported Commands; Burst Mode - MSA General Monitors OBSERVER-i User Manual

8.0

UNIVERSAL COMMANDS

Command 3 returns the current loop variable and the primary variable for a total of 9 bytes returned.
Command 9 returns the PV only.
9.0

COMMON PRACTICE COMMANDS

The following common practice commands are implemented.
9.1

SUPPORTED COMMANDS

The following common-practice commands shown in Table 4 are implemented:
Command
Number
Command 38
Command 48
Command 48
Command 48
Command 48
Command 48
Command 48
Command 48
Command 48
9.2

BURST MODE

The Observer-i does not support Burst Mode.
9.3

CATCH DEVICE VARIABLE

This Observer-i does not support Catch Device Variable.
Byte
Number
Reset Configuration Changed Flag
N/A
0 Returns Priority Fault, High Byte
1 Returns Priority Fault, Low Byte
2 Returns Error Status (same as Modbus register x02), High Byte
3 Returns Error Status (same as Modbus register x02), Low Byte
4 Returns Power Cycled Flag
5 Returns Event Happened Flag
Returns 0x01 = "Maintenance Required" or 0x02 = Alarm or Warning
6
7 Returns 0

Table 4: Observer-i Common Practice Commands

Meaning
10
OBSERVER-i HART