Maintenance
Section 7-3
91
7-3-3
Replacing Nodes
Replacing on the fly
Precautions
Except for the Master Unit, all PROFIBUS-DP nodes can be replaced on the
fly; the only condition is that the node is of the same type. Also, the network
can be expanded with another Master Unit and its assigned slaves in full
operation.
The Master Unit can only be replaced when the PLC power is turned OFF.
After replacing the Unit, turn ON the power again and download the same
configuration as was downloaded in the replaced Master Unit. Make sure that
the Unit number setting is the same as the previous Master Unit. During
replacement of the Master Unit the network is not operational.
Observe the following precautions when replacing a Unit.
•
After replacement make sure that there are no errors with the new Unit.
•
When a Unit is being returned for repair, attach a sheet of paper detailing
the problem and return the Unit to your OMRON dealer.
•
If there is a faulty contact, try wiping the contact with a clean, lint-free cloth
dampened with alcohol.
7-3-4
Adding Nodes
Download new configuration
The PROFIBUS-DP network allows to add new nodes on the fly. After
connecting the new node to the network, a new configuration which contains
this new node must be downloaded to the Master. During the download, all
bus activities are stopped.
Summary of Contents for C200HW-PRM21
Page 1: ...C200HW PRM21 PROFIBUS DP Master Unit OPERATION MANUAL Cat No W349 E2 2...
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Page 5: ...C200HW PRM21 PROFIBUS DP Master Unit Operation Manual Produced May 2000...
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Page 66: ...Debug mode Section 4 4 50...
Page 98: ...Messages Section 6 4 82...
Page 108: ...Maintenance Section 7 3 92...
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