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D-4

Appendix D Scanner

2000 microEFM

Map Starting Register

User-Dened Holding Registers 9100

Device Status 9900

Note: All registers cited in this document refer to the address of the register that appears in the actual

Modbus® message. For example, register 8000 has an address of 0x1F40 hexadecimal in the

message.

Control Registers

(Decimal)

(Hex) Description

Data

Type Access

70 46 Control Register 1 U16 R/W

The Control Registers allow specic functions to be implemented via the communications port. The

following table shows the value to be written to the control register to implement the desired function.

Code Function

20000 Transfers the polling totals and averages and polling run times to the previous polling totals,

averages and previous run-time registers, increments the polling index register, and resets

the polling totals, averages and polling run-time registers.

30000 Clears all ow totals

30001 Clears Flow Run 1 totals

30003 Clears Turbine 1 totals

30004 Clear Turbine 2 totals

30050 Clears all pulse output latches

30051 Clears a Pulse Output 1 latch

30061 Adds pulses specied in Control Register 2 to Pulse Output 1 Accumulator

30100 Clear all Alarm States

30101 Clear Flow Run Alarm Status

30102 Clear Input Alarm Status

40000 Loads factory defaults

40040 Resets the microcontroller (watchdog)

50050 Creates a partial archive record (daily and interval)

Cameron Scanner 2000 microEFM User Manual

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