BECKHOFF C1230S - Manual (Page 12)

Eiserstraße 5 / D-33415 Verl / Phone 05246/963-0 / Fax 05246/963-149
12 ISA Bus interface card C1230S
C1230S
Waiting
In this state the charging controller waits for the presence of a valid battery
voltage. Only then does the quick charging continue. Bit 7 of port B at
address 231H alternates between 0 and 1 with a period of 1.5 seconds and
a mark-space ratio of 1:11.