Communication Appendix - Lamtec LT3 Quick Reference

8 Options
Specification of the PROFIBUS master output data
The following shows the assignment of the output data received by the PBM from the PROFI-
BUS master.
If the PROFIBUS module is used with a BT300 with software version 3.3 or older, only select-
ed LSB digital modules can be used (see the LSB module ID table in Chapter 8.5.4 Commu-
nication Appendix.
*
** Here, specify the number of the digital module (1 ... 16), and
8.5.4

Communication Appendix

Bit encoding status of the digital outputs of the LSB module
ID of LSB modules – address to be set on the rotary switches
NOTICE
*
Byte position Designation/configuration
1, 2 Fault/warning reset
Execution for change byte 1, 2 of 0x55AA  0xAA55
3 ID (number) of digital module 1 ...16
4 Bit encoding of the digital outputs to be set
Bit [0 ... 3] digital outputs 1 ... 4 (see the Bit encoding status of the digital
outputs of the LSB module table in Chapter 8.5.4 Communication Appendix.
Byte-number-wise from 1
set the address on the LSB module according to the number and LSB family; cf.
Digital outputs Active (bit encoding)
1 0x01
2 0x02
3 0x04
4 0x08
LSB module no.
Digital module 1
Digital module 2
Digital module 3
Digital module 4
Digital module 5
Digital module 6
Digital module 7
LSB family
1 2 3 4
3 2 1 0
7 6 5 4
11 10 9 8
15 14 13 12
18 18 17 16
23 22 21 20
27 26 25 24
69
0xAA55  0x55AA
**
BT300 support
Until Release 3.3