Appendix 3 Profibus-Dp; Appendix 3.1 Input/Output Data; Appendix 3.1.1 Power Distribution Modules - Mitsubishi MELESEC-ST User Manual

APPENDICES

Appendix 3 PROFIBUS-DP

Appendix 3.1 Input/Output Data

Appendix 3.1.1 Power distribution modules

Bit Input
Br.n+1 Br.n
SYS. input 24VDC voltage low
1 1
AUX. input 24VDC voltage low
1 0 SYS. input 24VDC voltage low
0 1 AUX. input 24VDC voltage low
0 0 Normal
Bit Input
Br.n+1 Br.n
0 1 AUX. input 24VDC voltage low
0 0 Normal
App - 12
The power distribution module has the following areas for data transfer to and from the
head module.
The structure of each area will be explained in this section.
Module
Power distribution modules
ST1PSD, ST1PDD
The value within the parentheses is not used, but the number of assigned points is
occupied.
Write 0 (fixed) when writing a value to the Output Data at the master station.
(1) Input Data
(a) Br Bit Input Area
The Br Bit Input Areas of the bus refreshing module and power feeding
module will be explained.
1) Bus refreshing module
Item
2) Power feeding module
Item
Number of
occupied slices Br
1 2
The 24VDC voltages input from the SYS. input and AUX.
input to the power distribution module are low.
The 24VDC voltage input from the SYS. input to the power
distribution module is low.
The 24VDC voltage input from the AUX. input to the power
distribution module is low.
The 24VDC voltages input from the SYS. input and AUX.
input to the power distribution module are within the rated
range.
The 24VDC voltage from the AUX. input to the power
distribution module is low.
The 24VDC voltage from the AUX. input to the power
distribution module is within the rated range.
MELSEC-ST
Input Data Output Data
Er Mr Wr Bw
2 1 0 (2)
Description
Description
Ew Ww
2 0
App - 12