Technical information

2
1
3
4
5
6
7
8
9
10
2
1
3
4
5
6
7
8
9
10
2/102/10
Functions
Modicon M340 automation
platform
0
Discrete I/O modules
Functions (1)
The discrete I/O modules provide the following functions:
Hot swapping: Due to their special integrated devices, I/O modules (including
application-specific modules) can be removed or added while the power is on.
I/O assignment: The channels of discrete I/O modules are grouped into blocks
of 4, 8 or 16 consecutive channels depending on the type of module. Each group of
channels can be assigned to a specific application task, namely master or fast.
Protection of DC inputs: The 24 V c and 48 V c inputs are constant-current
type. This characteristic ensures and limits the current consumed at the inputs.
Protection of DC outputs: All active transistor outputs are protected against
overload, short-circuits, reverse polarity and inductive over-voltage.
Reactivation of DC outputs: If a fault has caused an output to trip, the output
can be reactivated using this parameter if no other terminal fault is present.
Reactivation is controlled by means of a group of 8 channels. It can be programmed
or automatic.
RUN/STOP command: An input can be configured to control the RUN/STOP
changeover for the PLC.
Output fallback: This parameter defines the fallback mode used by the DC
transistor outputs when the PLC stops. It can assume the “fallback” value at state 0
or state 1 for the corresponding group of 8 channels or the “maintain” value
representing the state of the outputs before the PLC stops.
I/O module diagnostics: Each discrete I/O module is equipped with a display
block on the front panel centralizing all the information necessary for module control,
diagnostics and maintenance.
Diagnostics via Unity Pro:
Using the integrated diagnostics in Unity Pro, this local diagnostics on the module
front panel is complemented by system diagnostics based on predefined screens at
global hardware configuration level, module level and channel level (see page 4/4).
Remote diagnostics using a web browser on a “Thin Client” PC:
In addition, the diagnostics described above can be performed remotely using a
simple web browser thanks to the standard web server integrated in the Modicon
M340 platform (processor with integrated Ethernet port or Ethernet module), using
the “ready-to-use” Rack Viewer function (see page 3/14).
Compatibility with 2-wire and 3-wire sensors: The discrete input modules can
be used in conjunction with OsiSense XS inductive proximity sensors (for
compatibility, see page 7/10) and with OsiSense XU photo-electric sensors (for
compatibility, see page 7/8).
(1) For further information, please consult our website at www.schneider-electric.com.
b
b
b
b
b
b
b
b
b
Display block for module BMX DDO 6402K
Processors:
page 1/2
Communication:
page 3/2
Software:
page 4/2
Ruggedized Modicon M340 modules:
page 6/2