Appendix: HART Specific Information
MSA
ULTIMA X ® Series
GB
133
Non-Volatile Memory
EEPROM is used to hold the device’s configuration parameters. Both the main
board and sensor module contain EEPROM devices. New data is written to this
memory on execution of certain write commands, during calibration operations and
during normal operation.
Modes
Fixed current mode is implemented, using Command 40. This mode is cleared by
power loss or reset.
Write Protection
Write-protection is provided by command 186. When in the Write Protect mode, all
read commands are available, no "write" or "command" commands are accepted.
Damping
Damping is internally-fixed, affecting only the PV and the loop current signal. There
is no user-settable damping control.
13.10 Capability Checklist
Manufacturer, model and revision
MSA, ULTIMA, rev. 2
Device type
Transmitter
HART revision
7
Device Description available?
Yes
Number and type of sensors
1
Number and type of actuators
0
Number and type of host side signals
1: 4 - 20 mA analog
Number of Device Variables
13
Number of Dynamic Variables
1
Mappable Dynamic Variables?
No
Number of common-practice commands
11
Number of device-specific commands
31
Bits of additional device status
32
Alternative operating modes?
No
Burst mode?
Yes
Write-protection?
Yes
