zLogGvlConstant (GVL)

List of global constants used in the data logger library.

General information

Dataset: 1 dataset always has 400byte FifoIn: has a maximum capacity of 161 datasets = 64400bytes/FifoIn FifoOut: has a maximum capacity of 161 datasets = 64400bytes/FifoOut File: 1 file stores up to 65535 data records, which are copied block by block from the FifoIn in case of a communication lost A maximum of 999 files can be saved In purely mathematical terms, that would be 999 files * 65535 datasets * 400byte / dataset = 26,187,786,000 bytes = 26GB

InOut:

Scope

Name

Type

Initial

Comment

Constant

zLOG_CONST_LENGTH_1DS

UDINT

400

1 DataSet in FIFO/FILE has maximum 400 Bytes

zLOG_CONST_ARRAYLIMIT_1DS

UDINT

399

zLOG_CONST_FIFOLIMIT

UDINT

60

use it to set the array length of FIFOin/out

zLOG_CONST_FILELIMIT

UDINT

999

1…999 Files possible (0 is not used = “NoFile”)

zLOG_CONST_DSproFILE

UDINT

65535

Maximum 65535 Datasets/File possible