S-Register - Hitachi S10mini Hardware Manual

4.5 S-register

The S-register stores information on errors that occur in each network. This register is set if an
error is detected even in one of the stations (sub-stations) connected to each network (N1 or N2).
SWA00
(main module)
SWA80
(sub-module)
Symbol Bit
SA00 0
1
SA01 0
1
SA08 0
1
SA09 0
1
SA80 0
1
SA81 0
1
SA88 0
1
SA89 0
1
Any other bits not listed above are unused.
15
2
N1 ERR
N1 ALM
N1 ERR
N1 ALM
Note: ALM, communication error; ERR, hardware error.
N1 of the main module is providing data communications service normally.
A communication error was detected in N1 of the main module.
N1 of the main module is in normal operation.
A hardware error was detected in N1 of the main module.
N2 of the main module is providing data communications service normally.
A communication error was detected in N2 of the main module.
N2 of the main module is in normal operation.
A hardware error was detected in N2 of the main module.
N1 of the sub-module is providing data communications service normally.
A communication error was detected in N1 of the sub-module.
N1 of the sub-module is in normal operation.
A hardware error was detected in N1 of the sub-module.
N2 of the sub-module is providing data communications service normally.
A communication error was detected in N2 of the sub-module.
N2 of the sub-module is in normal operation.
A hardware error was detected in N2 of the sub-module.
8 7
2 2
N2 ERR
N2 ALM
N2 ERR
N2 ALM
Description
4-9
4 USER GUIDE
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