Delta AH500 Manual page 654

AH500 Module Manual
When some I/O module has a fault and the master is disconnected or stops, the DO and AO
modules added to AHRTU-PFBS-5A are set as the above two figures shows. Besides, anyone
of them can also be set separately. Take a DO module for example as below.
Name
rack
slot
Output hold
14-24
Setting
The number of the rack where the I/O module is
(Rack number ranges from 1 to 8, 1 represents
0x01
the main rack, 2~8 stand for extension racks and
the slot number is 0~11.)
The number of the slot on the rack where the I/O
module is. (Rack number ranges from 1 to 8, 1
0x00
represents the main rack, 2~8 stand for
extension racks and the slot number is 0~11).
Output hold options:
Enable: the output of other I/O modules of
AHRTU-PFBS-5A is held when some I/O
module has a fault and the master is
disconnected or stops running.
disable/enable
Disable: the output of other I/O modules of
AHRTU-PFBS-5A is cleared to 0 when some I/O
module has a fault and the master is
disconnected or stops running.
Explanation