In-Cabinet Distributed I/O

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1734 POINT I/O

Product Design



1734 POINT I/O modules offer one to eight points per module. The I/O modules are interfaced to a network through a communication interface, which includes a built-in power supply that converts incoming 24V DC power to 5V DC backplane power.The I/O modules receive power from the power supply through the backplane. Each type of communication interface supports a maximum of 13 to 17 I/O modules, with a maximum of 10 A field power. A POINT I/O assembly can be expanded up to a maximum of 63 I/O modules or 504 channels.

1734D Series POINTBlock I/O provides a DeviceNet communication interface with up to 16 integrated I/O points in a single module. You can add up to 13 POINT I/O modules to a POINTBlock I/O assembly, for a maximum of 120 channels per assembly.

1734 POINT Guard I/O modules communicate by using CIP Safety protocol over EtherNet/IP for GuardLogix controllers or DeviceNet for SmartGuard 600 controllers. The application of CIP Safety protocol allows simultaneous transmission of safety and automation control and diagnostic data over one CIP network. For EtherNet/IP connectivity, use a 1734-AENT or 1734-AENTR adapter. For DeviceNet communication, use the 1734-PDN communication interface module.

POINT I/O System Components

The POINT I/O family consists of modular components. Each component snaps together and mounts onto a DIN rail to form the POINT I/O system. Required system components include:

Component	Description
Communication Interface	• Communication adapter modules are available for ControlNet, DeviceNet (with and without Subnet connectivity), EtherNet/IP, or PROFIBUS DP networks. • A low-cost DeviceNet communication interface and a DeviceNet communication interface with up to 16 integrated I/O points are also available. • Communication modules include a built-in power supply that converts incoming 24V DC power to 5V DC backplane power to power the I/O modules.
I/O Module	• I/O modules plug into the POINT I/O mounting base, which mounts on a DIN rail. • Options include: digital, analog, thermocouple, RTD, and specialty. • Point Guard I/O modules are TÜV-certified for functional safety up to and including SIL 3, Category 4, and Performance Level (e).
Mounting Base	• Provides the mounting location for the I/O module and the removable terminal base (RTB). • Forms the interconnect for the I/O backplane communication and field power distribution. • The mounting base and RTB are sold pre-assembled as a terminal base assembly. • A one-piece mounting base with integrated terminal locations is also available.
Removable Terminal Block (RTB)	• Snaps into the mounting base and provides the terminal locations for the I/O. • The RTB separates from the mounting base and I/O module for rapid installation and commissioning of the system.

Optional system components include:

Component	Description
Expansion Power Supply	• Extends the backplane bus power and creates a new field voltage partition in order to support additional I/O modules, up to the maximum allowed per assembly. • Choose from 24V DC or 120/240V AC units.
Field Power Distributor Module	• Discontinues the I/O circuit power bus in order to change the field power distribution source for I/O modules to the right of the field power distributor. • Allows a broad range of voltage inputs in the I/O assembly.