KROHNE MFC 010 C Converter - Manual (Page 41)

MFC010 Interface Manual 39
7.2 Discrete Status Output “Coil” Registers
The discrete Status Output, or “Coil”, registers are used by the MFC010 to initiate special functions and
operations. When read, the values are meaningless and in most cases are just returned by the MFC010
as 0. Some of the oper ations r equire a m ore det ailed explanation; this c an be f ound l ater i n t his
document in Section 8.
Use Modbus command number 01 to read the state of these registers ( see section 6.1 on page 23 ) and
Modbus command number 05 to activate the output register/command ( see section 6.5 on page 27 ).
Register No. Description
1001 Save Changes to EEPROM
- Store the configuration changes made into the non-volatile memory. See Section
8.6 on page 77 for a more detailed explanation of saving and restoring configuration
settings.
1002 Begin Zero Flow Calibration
– Initiate a calibration of the zero flow offset. See Section 8.1 on page 71 for further
details. Reads value “1” when zero calibration in process and “0” when complete.
1003
CT
Reset Totalisers
– Resets all Totaliser values.
1004 Reset Additional Totaliser
– Reset the Additional Totaliser.
1005
CT
Request STANDBY Mode
– Place the instrument into “Standby” mode, where the meter oscillation continues
but the Mass flow reading is set to Zero. Valid Temperature and Strain
measurements continue to be made during the “Standby” mode. Reads “1” when set
1006
CT
Request STOP Mode
– Place the instrument into “Stop” mode, where the meter oscillation stops and all
mass flow measurement stops. Valid Temperature and Strain measurements
continue to be made during the “Stop” mode. Reads “1” when set
1007 Request MEASURE mode
– Place the instrument into “Measure” mode, all measurement and totalising restarts.
Reads “1” when set
NOTE:
For above 3 registers, only 1 of the coils will be set at any one time. Writing
to any 1 of the 3 coils will clear the other 2.
1008 Reset Errors
– Clears the Stored System Error Flags (See Input Register No 7005). Will not reset
Custody sensitive errors when Custody Transfer lock is active, see section 8.9 on
page 78 for details.
1009 Reset Warnings
– Clears the Stored Process Warning Flags (See Input Register No 7007). Will not
reset Custody sensitive warnings when Custody Transfer lock is active, see section
8.9 on page 78 for details.