Hardware Manual PCD1.M2110R1 │ Document 27-619 │ Version ENG 04 │ 2018-08-20
Saia-Burgess Controls AG
Introduction
Orientation
2-4
2
2.1.3
IO Addressing
Optical output position for the following description
The PCD is lying or hanging in front of us as shown, so that the labelling can
be read from left to right.
Addressing
In the case of Saia PCD
®
controllers with a flat construction, the addressing of I/O
terminals always starts at the top left and continues in a clockwise direction, i.e.
starting from slot IO0. The on-board I/Os of the PLC processor card are assigned
to terminal blocks X0 to X2 and located on the underside of the PLC.
X3
slot 0
slot 1
X2
X1
X0
X3
slot 0
slot 1
X2
X1
X0
with cover
without cover
All element addressing in the PCD family begins with number 0.
Addressing the inputs or outputs in slot 0 and slot1 from PG5
The direct access to the IO elements of each IO plug-in module takes place
in the program through its media code and address number, separated by a space.
For example, “I 5” or “O 32”. In which case “I” and “O” are the media code and the
number of the absolute address.
Further details about the programming can be found, among other places, in the
auxiliary system of the Saia PG5
®
programming tool or in the corresponding manu-
als.
