Operation of the DP/PA Link and the Y Link
8-11
DP/PA Link and Y Link Bus Couplings
A5E00193841-011
8.6
Replacing faulty modules
The table below show the steps necessary to replace a faulty IM 157, a faulty
DP/PA coupler or a faulty Y coupler.
Step
Activity
1
Disconnect the power supply of the faulty module.
2
Unplug the bus connector from the PROFIBUS-DP interface of the faulty
module.
Or
Disconnect the PROFIBUS-PA connection of the faulty DP/PA coupler.
3
Replace the faulty module.
4
Connect the bus connector with the PROFIBUS-DP interface of the new
module.
Or
Connect the PROFIBUS-PA interface to the new DP/PA coupler.
5
Connect the power supply of the new module.
Information on compatibility regarding the exchange of modules is found in
Appendix 2.7.
8.7
System changes during operation
8.7.1
System changes in S7 standard operation
The table below shows the steps necessary to add a completely new DP/PA link
together with the underlying PA master system to an existing system during
operation.
Step
Activity
1
Install the new DP/PA link.
2
Connect the power supply of all modules.
3
Connect the PROFIBUS-PA to the new DP/PA coupler.
4
Connect the bus connector of the DP master system to the PROFIBUS-DP
interface of the new IM 157.
The overall procedure for making a system change and the prerequisites that must
be met to do so are described in detail in the function manual, System Changes
during Operation via CiR.
Содержание Simatic 6ES7 157-0AC80-0 A0 Series
Страница 14: ...Contents xiv DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 42: ...Installation 3 12 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 70: ...Commissioning the DP PA Link 6 12 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 162: ...Technical Specifications B 40 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 170: ...Order Numbers and Accessories D 4 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 178: ...Glossary Glossary 8 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...
Страница 182: ...Index Index 4 DP PA Link and Y Link Bus Couplings A5E00193841 01 1 ...