800xa for mod300 - S800 I/O DO820 INITIAL COMMAND
I have an AC460 with some S800 I/O module (model DO820)
to be started at controller boot with a particular initial command.
I configured a device loop for a motor start/stop control,
with 1_in_2_m_out device type.
The stop contact need to be normally closed and we could
only do it by software by using the "inverted output" feature, for now,
I mean not by using an additional relay contact.
The problem is that when we load the AC460 CPU the initial command
is executed but the S800 I/O module does not set the output
that need to be closed as requested.
The only way to do so is by making a "restart" of
the DO820 I/O module from the MOD Engineering Display.
After this action the output goes "phisically" in the right state
as requested by the INITIAL COMMAND.
Additionally I get a S800 channel error at boot time
but only during startup not during the restart phase
of the DO820 module
I wonder if anybody has already experimented this kind
Advabuild version is 3.7 P1.
Thanks everybody for any help.