Emerson 5300 用户手册
Manual Supplement
00809-0500-4530, Rev AA
October 2010
October 2010
1-23
Rosemount 5300/5400 Series
3. Select the Communication tab.
4. Click the Modbus Setup button.
5. Enter the Modbus string, and click OK.
See below for available Alarm Output Modbus strings.
Modbus RTU
Levelmaster
Modbus ASCII
NOTE
After changing the Alarm Output configuration, disconnect the HART modem
and wait up to 60 seconds for the change to take effect.
After changing the Alarm Output configuration, disconnect the HART modem
and wait up to 60 seconds for the change to take effect.
In case the MA/MB terminals are used for connection to the HMC, disconnect
the RS-485 Converter, cycle power to the transmitter, and wait up to 60
seconds for the change to take effect.
the RS-485 Converter, cycle power to the transmitter, and wait up to 60
seconds for the change to take effect.
String
Alarm Output
HMC EN
Not a number (NaN), default
HMC EF
Freeze, hold last value
HMC EU U-0.1
User defined value, -0.1 in this example
String
Alarm Output
HMC M2 EH
High value, 999.99, default
HMC M2 EL
Low value, -99.99
HMC M2 EF
Freeze, hold last value
HMC M2 EU U0
User defined value (range -99.99 to 999.99),
0 in this example
0 in this example
String
Alarm Output
HMC M1 EN
Not a number (NaN), default
HMC M1 EF
Freeze, hold last value
HMC M1 EU U-0.1
User defined value (range -99.99 to 999.99),
-0.1 in this example
-0.1 in this example