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Publication 1734-UM001D-EN-P - April 2008
Chapter
4
POINT I/O Module Data
About This Chapter
Read this chapter for information about module status, input, output, and
configuration data, and default data maps for POINT I/O modules to include
the following:
•
Digital Input Modules
•
Digital Output Modules
•
Relay Output Modules
•
Analog Input Modules
•
Analog Output Modules
•
POINTBlock I/O Modules
Digital Input Modules
Read this section for information about digital input modules.
Digital dc Input Modules
T
he 1734 digital dc input modules feature the following:
•
24V dc nominal dc inputs
•
Input range of 10 to 28.8V dc
•
2, 4, or 8 sinking or sourcing style inputs
•
Autobaud (will match baud of existing devices on the network)
•
Selectable input filter times (0…65 ms with 1 ms default)
•
Sequential auto addressing
I/O messages are sent to (consumed) and received from (produced) these
POINT I/O modules. These messages are mapped into the processor
memory.
(1)
These POINT I/O modules produce one byte of input data
(scanner Rx). They do not consume I/O data (scanner Tx).
(1)
These are mapped through scan lists in DeviceNet networks and Direct, Listen Only, or Rack Optimized
connections in ControlNet and EtherNet/IP networks.
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