User Manual

Logical I/O blocks
Addressing entries for PXC…-U, PTM and P-Bus
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284 | 351 CM110664en_07
Addressing is via the input/output address [IOAddr]. In both the modular and the compact series, the
logical and physical I/O must be located in the same automation station, but they do not need to be
contiguous. The addressing cannot extend across automation stations. The addresses must be on the same
module for TX-I/O.
Simple mapping
Syntax: P=Module.Channel;Module.Channel;Module.Channel;Module.Channel (Signal type)
Examples:
● P=1.1 (D20)
● P=1.1;1.2 (D20)
● P=1.1;1.2;1.3 (D20)
● P=1.1;1.2;1.3;1.4 (D20)
● P=10.3 (DIS)
Up to four binary status values (e.g., Off/St1/St2/St3/St4) can be registered. The signals to be registered,
which are addressed via Module.Channel, must always be of the same hardware signal type. With the
simple mapping procedure, to enable the multistate input to interpret the current binary signals correctly,
only one binary signal may be present at any one time. If several binary signals are present at once, this is
displayed as an error at the [Rlb] pin.
The examples below show a possible application for multistate input blocks in conjunction with the
physical I/O modules. The example on the left of the diagram is a multiple I/O module, while the one on the
right shows the mapping of several individual I/O modules in one multistate input block.
Multistate output
The multistate value from the program is converted in the Multistate Output block into a switching
command. Addressing is via [IOAddr]. For PX modular, the syntax is as follows:
Syntax: P=Module.Channel;Module.Channel;Module.Channel;Module.Channel (signal type, parameter)
Examples:
● P=1.1 (Q250)
● P=1.1;1.2 (Q250)
● P=1.1;1.2;1.3 (Q250)
● P=1.1;1.2;1.3;1.4 (Q250)
● P=10.1 (Q250-P3,120)
● P=24.7 (DOS)
Values with up to four stages can be processed. The signals to be registered, which are addressed via
Module.Channel, must always be of the same hardware signal type. In the case of a multistate output on
the hardware side, there is one address only (this is only possible with PXC modular automation stations).
Error handling
If an automation station does not support a given address (e.g., incorrect syntax) or a given I/O system, this
will lead to a reliability error, which will be displayed at the [Rlb] pin.
Advanced mapping (Multistate Input)
The manual switch can be encoded on the PX compact in various ways, e.g.:
● (Auto/Off/On) or (Off/Auto/On)
● (Auto/Off/S1/S2) or (Off/Auto/S1/S2)
To avoid having to keep adapting the data types and text groups in the system, the manual switch must
always be represented in the same way within the system:
● (Auto/Off/On)
● (Auto/Off/S1/S2)
A prerequisite for this approach is that it must be possible in the multistate input block to configure the
hardware coding and mapping to the standardized manual switch. This is made possible with parameters in
the address.
1_n-Mapping (Multistate Input and Output)
Syntax: P=Module.channel;Module.channel;Module.channel;Module.channel (signal type, a,b,c,d,e)
a represents [PrVal] for HW-I/O (0,0,0,0)
b represents [PrVal] for HW-I/O (1,0,0,0)