Azbil F4Q, User Manual

Page: 65 / 76

7-1
Chapter 7. Device Operation by Communication
Commands
By sending a write command to a specific data address, the following operations can be executed on this device.
The data address and write data for each operation are as follows.
Device operation Data address
Decimal
(hexadecimal)
Write data
Decimal (hexadecimal)
Notes
Device status
deletion 9994 (270A) 12345 (3039)* The device status (alarm, warning, information) is
deleted.
Errors are not deleted.
Automatic zero point
adjustment 9995 (270B) 12345 (3039)* The current flow rate is reset to 0.
Before executing this command, set to control
mode and SP = 0, or to fully closed mode, and stop
the flow completely.
Total flow volume
reset 9996 (270C) 12345 (3039)* The total flow volume is reset to 0.
* For Modbus communication, use Function 16 (multiple data write command) to write the data in the above table and “0” in
order.
Ex.: Send message of the communication command for device status deletion (checksum and CRC omitted)
z
For CPL communications
Instruction code Data address Write data
STX 0 1 0 0 X W S , 9 9 9 4 W , 1 2 3 4 5 ETX * * CR LF
*Check code
z
For Modbus communications
Function code Data address Write data 0
01H 10H 27H 0AH 00H 02H 04H 30H 39H 00H 00H * *
*Check code