AH500 Module Manual 
12-56 
Item 
value 
Description  Treatment 
error 
of 
communicator 
error 
-  Reserved  - 
slaves 
- 
configured in the master. 
- 
Active slaves  - 
communicating with the 
master normally. 
- 
15…0 
- 
that the error on the slaves 
(of number 1~125) occurs 
such as offline, the 
corresponding bit becomes 
1. (Here there are totally 128 
(0~127) bits assigned. Since 
the node addresses of the 
slaves can not be 0, 126 and 
127, the corresponding bit 
has no meaning.) Otherwise, 
it is 0. 
For more details, see the 
following table on the error 
slaves. 
1. Check if the PROFIBUS DP bus 
is connected correctly. 
2. Check if either end of the 
network is added with the terminal 
resistor. 
31…16 
…… 
Error slaves 
127…112 
 
Corresponding relation table for error slaves: 
Description  Corresponding register 
corresponding slave device 
(
)
15~0 
Error slaves 31…16 
(
)
31~16 
Error slaves 127…112 
(
)
127~112