Delta AH500 - Page 653

Chapter 14 Remote I/O Communication Module AHRTU-PFBS
14-23
Name
Setting
Explanation
for example.
If a Siemens PLC is used as the
master and PQD256（containing
PQB256, PQB257, PQB258 and
PQB259） corresponds to the
32-point output module, PQB256
corresponds to Y0.0~Y0.7,
PQB257 to Y0.8~Y0.15, PQB258
to Y1.0~Y1.7, PQB259 to
Y1.8~Y1.15.
If AH10PFBM-5A is the master
and D6000 & D6001 correspond
to the 32-point output module, in
D6000, bit0~bit7 correspond to
Y0.8~Y0.15 and bit8~bit15 to
Y0.0~Y0.7; in D6001, bit0~bit7
correspond to Y1.8~Y1.15 and
bit8~bit15 to Y1.0~Y1.7.
The option is recommended to
select when the Siemens PLC is
used as the master.
Master in Clear
mode
I/O module continues running
AHRTU-PFBS-5A continues
running when the option “Slave
receives no data in Clear Mode”
under “Fail-Safe Behavior” is
selected and meanwhile the
master is in STOP state.
I/O module stops running
AHRTU-PFBS-5A stops all I/O
modules from running when the
option “Slave receives no data in
Clear Mode” under “Fail-Safe
Behavior” is selected and
meanwhile the master is in STOP
state.
As shown in the following figure, the option “Slave receives no data in Clear Mode” is selected
as the “Fail-Safe Behavior” when the master is in STOP state.