Status Byte - Siemens SITRANS LR460 Operating Instructions Manual

The first 4 bytes are the floating point representation (IEEE) of the variable. The variables are
the outputs of the function block. The 5th byte is the status word and the list of possible
values is given in the chart below.
The 5 bytes must be read consistently, in a contiguous chunk: they cannot be read byte by
byte, and cannot suffer an interrupt. If you are using an S7-300 / 400, you will need to use
SFC14 DPRD_DAT: Read Consistent Data of a Standard PD Slave.
D.5

Status byte

In PROFIBUS PA there are two possible types of status byte:
• status byte: originally defined in Profile Standard V3.0
• condensed status: an alternative status byte defined in Profile Standard V3.01
You can choose which type of status byte will be returned, by enabling or disabling 7.1.
Condensed Status Mode (COND STAT). The default setting is Condensed Status disabled:
Status Byte will be returned, and the following codes will be used.
SITRANS LR460
Operating Instructions, 10/2021, A5E42035355-AB
Communications via PROFIBUS PA
D.5 Status byte
149