Burkert Type 8056 - Manual (Page 16)

- 16 - RS232_485_ETP_MODBUS_BU_REV02.doc
3.2.14. READING THE EVENTS ON INTERNAL DATA-LOGGER DATA OF ML210 / 211 / 212
The data logger can be read one record at a time with this command. If we assign the value AAH to the byte
specifying the address (byte 0), the data logger is cancelled. If we request the address of a record not present in the
memory, the returned data has no sense. For this purpose we recommend starting from the request for record 0 and
to check the number of records present in the memory which is returned by the measuring device..
Command code : 11
Command format: ADDRESS TO
+ ADDRESS FROM
+ 0BH
+ 01H
+ byte 0: index of the data logger data to read, AAH to cancel the entire content
+ CRC CHECKSUM
Reply data format in the case where there are registrations present:
byte 0: (8 bits integer) number of record requested
byte 1: (8 bits integer) total number of records present in the memory
bytes 2-5: (32 bits long integer, MSB first) data saving time and date expressed in minutes starting
from 01-01-1992
bytes 6-9: (32 bits long integer, MSB first) flags events
bit 00: error sensor RTD / batch alarm
bit 01: alarm max flow
bit 02: alarm min flow
bit 03: alarm overflow
bit 04: alarm overflow pulse
bit 05: input error
bit 06: pipe empty
bit 07: coils interrupt
bit 08: alarm max t. power
bit 09: alarm min t. power
bit 10: alarm max delta T
bit 11: alarm min delta T
bit 12: alarm max T1
bit 13: alarm min T1
bit 14: alarm max T2
bit 15: alarm min T2
bit 16: current loop open
bit 17: power supply error
Code 000300FFH or 0003FFFFH = means converter switch on
Reply data format in the case where registrations are NOT present or the data logger is disabled
byte 0: (8 bits integer) requested record number
byte 1: (8 bits integer) total number of records present in the memory
Reply data format in the case where the AAH cancellation code is sent:
byte 0: (8 bits integer) AAH code.
NOTE: The time and date of sample collection is expressed in minutes starting from 01/01/1992. For conversion, see
the programming examples at the end of this manual.