Hitachi EH-RMP2 Applications Manual page 55

(d) Global error bits.
Details of global error bits are shown below.
Bit number
7-6
5
4
3
2
1
0
(e) Heavy bus error count.
This register is incremented if there for example is a short circuit on the bus cable.
(f) Number of rejected PROFIBUS telegrams.
(g) Slave Config.
This 16 bytes bit-field indicates if a node is configured in the master or not. Address bit 0 corresponds to node
address zero, bit 1 corresponds to node address 1 and so on. If the bit is 1, the corresponding node is configured
otherwise the node is not configured.
(h) Slave State.
This 16 bytes bit-field indicates if a node is active in the data exchange or not. Address bit 0 corresponds to node
address zero, bit 1 corresponds to node address 1 and so on. If the bit is 1, the corresponding node is active in the
data exchange otherwise the node is not active.
Table 5.2.2-4 Global error bits
Reserved
1 = HOST is not ready
0 = Normal operation
1 =Bus short circuits detected
0 = Normal operation
1 = Because of heavy bus error, no further bus communication is possible
0 = Normal operation
1 = At least one slave is not in the data exchange mode or reports fatal error
0 = Normal operation
1 = The master branched into auto clear mode because of a slave error
0 = Normal operation
1 = A parameter error occurred
0 = Normal operation
Description
5 – 9
Chapter 5 Indications