Pilz PNOZ m B0 - Manual (Page 15)

Fieldbus Modules
Operating Manual PNOZmulti 2 Communication Interfaces
1002971­EN­02 15
Double Word Word Byte Content
7 14 28 Payload Byte 9
29 Payload Byte 10
15 30 Payload Byte 11
31 Payload Byte 12
4.1.3 Overview of tables
There are a total of 11 tables, with the following contents:
Table 20: Process data, base unit
Table 21: Process data, right­hand expansion modules
Table 22 Process data, left­hand expansion modules
Table 23: Process data, fieldbus module / communication module
Table 70: Diagnostic words
Table 71: Enable elements
Table 80: Project information
Table 90: Device data, base unit
Table 91: Device data, right­hand expansion modules
Table 92 Device data, left­hand expansion modules
Table 93: Device data, fieldbus module / communication module
The content of the tables is described in detail in the Appendix [ 101] .
4.1.4 Access to table segments
Each table consists of one or more segments. Each segment is made up of 13 Bytes. The
tables have a fixed assignment. The Master requests the required data using the table
number and segment number. The Slave repeats the two numbers and sends the reques­
ted data. If data is requested that is not available, the Slave sends the error message FF
(hex) or 255 (dec) instead of the segment number. The segments may be requested in any
sequence.