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6-2. How to Read Special Internal Relays(R) & Special Data Registers(DT)
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DT9200 to DT9217(P/W Link 2 status)
Address
Description
DT9200
The P/W PC Link overlapped station number(UNIT NO.) is stored here.
DT9201
The results of the trial operation in the test mode.
[used only for P Type(Optical) Link Unit]
DT9202
Counts how many times a token is lost.
DT9203
Counts how many times two or more tokens are detected.
DT9204
Counts how many times the signal is lost.
DT9205
Counts how many times a synchronous abnormality is detected.
DT9206
Send NACK
DT9207
Send NACK
DT9208
Send WACK
P/W Link 2
DT9209
Send WACK
DT9210
Send answer
DT9211
Send answer
DT9212
Unidentified command
DT9213
Counts how many times a parity error occurred.
DT9214
End code receive error
DT9215
Format error
DT9216
Not supported error
DT9217
The self-diagnosis results