Specifications

I/O Module Choices 27
1785-SO036C-EN-P - April 2002
1769 Compact I/O modules 1769 Compact I/O is a unique, new PLC-style I/O platform offering
industry leading features. It can be used to expand other distributed
I/O with the appropriate network adapter. Compact I/O also offers:
• modular, high-density I/O with low point cost
• installation ease - removable terminal blocks, front (direct)
insert/remove without rewiring
• individual diagnostic LEDs for easy troubleshooting
• software keying to prevent incorrect module placement
• 1492 wiring system provides cables that are prewired between the
1492 interface module and I/O module which reduces wiring time
and probability of wiring error
• multiple controller support - network support
The DeviceNet communication adapter is capable of supporting up to
30 I/O modules on a single DeviceNet node.
For more information about the family of Compact I/O modules, see
the 1769 Compact I/O System Overview, publication 1769-SO001.
1797 FLEX Ex I/O modules The 1797 series I/O modules (FLEX Ex I/O) is a flexible, I/O system
that mounts directly to the controlled equipment in a hazardous area.
This eliminates the need for intrinsically safe (IS) barriers/isolators
and separation of control and process. Additionally, the modules:
• offer modularity for distributed intrinsically-safe systems
• have dual-fault protection intrinsically-safe circuits that provide
high fault tolerance
• have I/O circuitry that provides full IS field-device protection
When you select 1797 FLEX Ex I/O modules, you must also select:
• adapter module and cabling components
• bus isolator module and cabling components
• terminal base unit
• DIN rail
• power supply
For more information, see the FLEX Ex I/O Product Data,
publication 1797-2.1.
I/O Module Choices
Features:
• unique, modular rackless design
eliminates the I/O rack from the
system
• patented communications bus is
integrated into the modules
• DIN-rail or panel mountable
• DIN latches and screw mounting
holes are integrated - no additional
hardware is necessary
Characteristic: Description:
Types of products available • digital, analog, specialty
Communications • DeviceNet I/O, Local I/O
Features:
• builds on standard
FLEX I/O features
• allows installation in a
hazardous area
• can mix with FLEX I/O modules
Characteristic: Description:
Types of products available • digital, analog, specialized
Communications • Local I/O, Remote I/O, ControlNet I/O, DeviceNet I/O