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4/3Schneider Electric

Quantum automation platform 4

I/O architectures

Local I/O

The Quantum automation platform provides local I/O support for control systems

where the wiring is most effectively brought from the field to the main control cabinet.

Local I/O can comprise as few as one I/O module or as many as 14 modules along

with a programmable logic controller (a Quantum CPU) and a power supply module

in a single backplane. Local I/O can support up to 1344 I/O points in a 1845 cm

(286 in

) panel space. Local I/O can also be expanded to a second backplane with

the use of a Backplane Expander.

If required for the application, system option modules can also be installed in the

local backplane. Available system option modules include RIO processors (one/CPU

supported) or Modbus Plus network interfaces (two/CPU supported). All other

available modules are considered and configured as I/O modules.

Selection of the appropriate backplane depends on the required number of modules

for the system. Backplanes are available in 2-, 3-, 4-, 6-, 10-, and 16-slot versions.

If required, communications and networking modules can also be installed in the

local backplane. Most communication and networking modules require the local

CPU to be present; the exception is the 141 MMS 425 01 multi-axis SERCOS motion

module, which can operate as a standalone. Available Quantum communications

and network modules include:

b Modbus Plus and Modbus modules.

b Ethernet modules for TCP/IP, SY/MAX and MMS.

b Remote I/O modules.

b Hot Standby modules.

b SERCOS multi-axis servo motion control modules.

b InterBus modules.

b Lonworks modules.

b ProfiBus modules.

b As-iBus modules.

In certain applications, I/O needs to be updated faster than the normally scheduled

scan time. Quantum provides interrupt I/O services for high-speed applications.

These services include time interrupt processing, interrupt input, and immediate I/O

updates that support high-speed throughput of critical I/O located in the local

backplane. The services are driven by instructions embedded in Quantum's logic

language. The instructions can be programmed via ProWORX or Concept

programming software; they update the I/O immediately within the CPU. Utilizing a

subroutine section in the CPU, the updated I/O table can be used to update logic

only, or write to any local output module. Interrupt services increase machine

productivity, yielding higher throughput and better utilization of capital equipment.

When you configure a local I/O sytstem, consider the following four characteristics:

b Available backplane slots for modules.

b Available power for the installed modules.

b Available addressing words to configure the modules.

b Available option module slots.

A local I/O system can support up to 14 slots for option processors and I/O modules

in a 16-slot backplane. If fewer I/O modules are required, smaller backplanes can be

used. For applications requiring more than14 slots, a backplane expander can be

used, and RIO and/or DIO can be added to the system. Empty modules

(140 XCP 500 00) are available to occupy unused slots.

Every CPU, option module and I/O module requires power from the backplane. This

power is provided by the system power supply. To ensure a valid configuration,

simply add up the required backplane current (in mA) for all modules in the local

backplane, and ensure that the total current is less than that provided by the selected

power supply.

A Quantum CPU in a local I/O drop can handle up to 64 input words and 64 output

words of I/O addressing. A 16-bit input or output module is equal to one word. Simply

add up the addressing requirements for each module to ensure that the limit is not

exceeded.

Local I/O

High performance interrupt functions

Local I/O configuration rules

Presentation

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