Publication 1734-UM001D-EN-P - April 2008
100 POINT I/O Module Data
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).
Digital Output Modules
Read this section for information about digital output modules.
Digital dc Output Modules
The features of dc output modules include the following:
• 24V dc outputs with a range of 10…28.8V dc
• Output diagnostic features are incorporated to assist in troubleshooting
• Current limited outputs of up to 2 A with respect to their dc return
• Autobaud (will match baud of existing devices on the network)
• 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 consume one byte of output 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.
Default Data Map for the 1734-IA2 and 1734-IM2 Input Modules
Message Size: 1 Byte
76543210
Produces (scanner Rx) Ch1 Ch0
Consumes (scanner Tx) No consumed data
Where: Ch0 = channel 0, Ch1 = channel 1; 0 = off, 1 = on
Default Data Map for the 1734-IA4 and 1734-IM4 Input Modules
Message Size: 1 Byte
76543210
Produces (scanner Rx) Ch3 Ch2 Ch1 Ch0
Consumes (scanner Tx) No consumed data
Where: Ch0 = channel 0, Ch1 = channel 1; Ch2 = channel 2, Ch3 = channel 3,
0 = off, 1 = on
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