Xylem Expert 7060_7070_Modbus - Manual (Page 17)

Communication protocol Serie30
Page 23/37
5.6 Function 48 : Initialise and release
Request:
DevAddr 48 CRC16_H CRC16_L
Response:
DevAddr 48 Class Group Year Week BUF STAT CRC16_H CRC16_L
Exception error:
3 If message length is incorrect
Note:
Each time the device is switched on by applying the supply voltage or after a break in the power supply, the device must be
initialised via this function. Calling a different function will lead to exception error 32.
The following information is returned:
Class Device ID code
5: Series 30 digital pressure transmitter (33, 35, 36, 39)
Group Subdivision within a device class
1: Series 30 transmitter from 1999 or later
20: Series 30 transmitter from 2002 or later
The differences between these devices are defined in italics in the functions.
Year, Week Firmware version
BUF Length of the internal receive buffer
STAT Status information
0: Device addressed for first time after switching on.
1: Device was already initialised