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Function Codes
Function Codes
When interfacing to Harmony I/O blocks, the controller uti-
lizes single channel I/O function codes:
• Analog input/channel (FC 222).
• Analog output/channel (FC 223).
• Digital input/channel (FC 224).
• Digital output/channel (FC 225).
These single channel function codes simplify configuration:
one function code configures one channel. A single I/O device
definition function code (FC 221) groups the single channel
function codes for an entire I/O block. Refer to the Function
Function Function
Function
Code Application Manual
Code Application Manual Code Application Manual
Code Application Manual for detailed function code
descriptions.
Compatibility
The Harmony I/O system is fully compatible with existing
INFI 90 OPEN systems. The I/O system can be integrated into
established installations that currently use INFI 90 OPEN I/O
to interface and process input and output signals. Or, the I/O
system can be installed to replace existing INFI 90 OPEN I/O.
The Harmony controller can communicate with Harmony I/O
and INFI 90 OPEN I/O simultaneously. Communication is over
Hnet for Harmony I/O blocks and over I/O expander bus for
INFI 90 OPEN I/O.
Features
Intelligent I/O system:
Intelligent I/O system:Intelligent I/O system:
Intelligent I/O system: A microprocessor in each I/O assem-
bly executes the I/O portion of the control strategy and pro-
vides advanced functions and diagnostics.
High performance, deterministic I/O network:
High performance, deterministic I/O network:High performance, deterministic I/O network:
High performance, deterministic I/O network: Uses a redun-
dant, high speed serial communication network with an inher-
ent capability for remote communication.
Distributed capability:
Distributed capability:Distributed capability:
Distributed capability: A high speed I/O communication net-
work designed for long distances combined with flexible enclo-
sure mounting options enables both centralized and remote
I/O locations.
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