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2 discrete status output “coil” registers, Discrete status output “coil” registers – KROHNE MFC 010 C Converter User Manual

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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.