ABB MOD300 AC460 WITH S800 I/O INIT FAILURE
I saw you have been working a lot with ABB MOD300
and I would be glad to share some info with you since I have
a lot of years of experience with MOD300 , since Digital VT220
was the only interface to debug Data Processor failure.
So I should be grateful to you if we could share some info regarding
ABB MOD300 and its functions migratred into the 800xA Platform.
I told you 30 years of experience but this systems always hide strange
I have a system when we have some S800 I/O (DO820) that need to have
an Initial Command at startup of "1" , so the output need to be closed.
The loop that commands this output is processed at "0" (zero)
and it is a 1_IN_2_M_OUT device type.
Whe also need to have "inverted" output the the second channel
(inverted output = 10) because this channel is a stop command of a motor
that is normally closed.
(and the customer does not want to use an additional relay contact :-(.
When we load the AC460 module the cards boot normally but the S7800 I/O modules (DO820) dont go to the desired state .
After initialisation we need to cycle the power OFF/ON and only at this moment
the output goes to the desirded state.
The diagnostics at boot time reports " I/O channel error " when the I/O modules
are loaaded the first time .
What do you think abou this strange behaviour,
Do I need to process the loop in any case to have the revert command
end initial command working ?
Thanks a lot
PS do you remember the config print flag of RTAB
> A6678 for PU410
> 164478 for internal RTAB
Nice to use it since Ver. 6.3.7 R4 Taylor MOD Systems lol
I hope it helps
Source: ABB MOD300 AC460 WITH S800 I/O INIT FAILURE