Onicon F-5500 - F-5500 Commands Supported by Modbus; Preset Single Register (Command 06)

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F-5500 Thermal Mass Flow Meter Manual 06/17 - 2030 / 107023 Page 65

Model F-5500

COMMUNICATIONS

Model F-5500

COMMUNICATIONS

F-5500 Commands Supported by Modbus

Bit Definition Comment

0 Power up indication Cleared when out of the power up sequence

1 Flow rate reached high limit threshold Set limit to zero to disable

2 Flow rate reached low limit threshold Set limit to zero to disable

3 Temperature reached high limit threshold Set limit to zero to disable

4 Temperature reached low limit threshold Set limit to zero to disable

5 Sensor reading is out of range Check sensor wiring

6 Gas mix error Gas mix must total 100%

7 Incorrect Settings Check settings

8 In simulation mode Set simulation value to 0 to disable

9 Pulse/alarm output is out of range Check pulse/alarm output settings

10 Analog 4-20 mA for flow/temp is out of range Check analog output settings

11 Not used Not used

12 Not used Not used

13 Not used Not used

14 CRC error Check parameters and reset CRC

15 Error in Total Reset total to clear alarm

Table 5.3: Status 2 Bits Definitions for Command 04, Modbus Address 30002

Bit Definition Comment

0 Pulse hardware detected

1 Busy Busy

2 Not used Not used

3 Not used Not used

4 Zero CAL-CHECK in process

5 Zero CAL-CHECK fail

6 Zero CAL-CHECK aborted

7 Zero CAL-CHECK warning

Table 5.2: Status Bits Definitions for Command 04, Modbus Address 30001

Preset Single

Preset Single Register (Command 06)

This command is used to perform miscellaneous functions such as clearing the

totalizer and elapsed time. The register address is Modbus=40018 and the data to