GE IC697CHS783 Integrators Rack, 17 Slots, Front Mount
Genius I/O blocks with selectable I/O configuration appear in more than one list. If adiscrete combination block will have inputs only, select it from the “D IN” (F1) list. If it
will have outputs only, select it from the “D OUT” (F2) list. If it will have both inputs
and outputs, select it from the “D MIX” (F3) list. If a block is selected from the wrong list,
or if its I/O type configuration is changed at a later time, a “Genius I/O Type Mismatch” error
will be placed in the PLC Fault Table.
When a block type has been selected from the correct list, press the Enter key. A config uration screen for that block will appear.
For example, this is a configuration screen for a
115 VAC 8 Circuit Grouped I/O block.
You must enter a configuration screen for each device on the bus, although you may
wish to use the default references and configuration selections.
This does NOT configure the characteristics of the Genius I/O blocks themselves. That
separate configuration is normally done using a Hand–held Monitor, but may also be
done using Communication Request instructions in the application program. For in formation about Communication Request instructions, see chapter 5.
With the cursor positioned at the correct Device Number, configure the device type:Select F1 for a discrete input block or combination block with inputs
only.
Select F2 for a discrete output block, or a combination block with out puts only.
Select F3 for a discrete I/O block with both inputs and outputs. This in cludes blocks configured for “outputs with feedback”.
Select F4 for an analog block that has inputs only.
Select F5 for an analog block that has outputs only.
Select F6 for an analog block with both inputs and outputs.
Select F7 to configure another Bus Controller, a High–speed Counter, a
PowerTRAC Block, a PCIM, GENI, GENA, or “generic” I/O device.
Select F8 to add a remote drop the bus.

A block’s Reference Address is the beginning reference for its inputs and outputs. As
each block is configured, the software selects the correct memory types for that block.
For example, for a discrete block with both inputs and outputs, this address is shown in
the configuration screen as:
Ref Addr : %QInnnnn
For an analog block with both inputs and outputs, this address is shown in the configuration screen as:
Ref Addr : %AQInnnnn
Memor y Type
The memory type shown on the configuration screen cannot be changed. If a discrete
combination block will NOT use the reference types shown (for example, if %QI is
shown, but the block will be configured with a Hand–held Monitor for inputs–only
operation), the block has been selected from the wrong list. The memory type displayed
on this screen must match the memory type selected with the Hand–held Monitor. If it
doesn’t, delete the current entry then re–select the block from the correct list.
Address
The Logicmaster programmer automatically assigns the next available reference address
within a memory type. If the address displayed is not appropriate, a different address
can be entered from the keyboard. Discrete references must begin on a byte boundary
(a byte boundary is a number which is one greater than a multiple of 8, for example: 9,
17, or 25). If you assign a reference address out of sequence, the software will then continue to increment
that number for additional modules. For example, if you assigned the
reference %I0401 to the first input module and it had 16 circuits, the software would
next assign %I0417 or %QI0417 to an input or combination block. You could change this
to a different address. A message appears when the highest available address has been
assigned, although you may have skipped lower addresses.
References for Blocks having both Discrete and Word Inputs: For certain types of Genius I/O blocks
(an example is the High–speed Counter block), the input data that is
routinely broadcast by the block consists of BOTH discrete and word–type data.
For such a block, the configured Reference Address represents three memory locations
(in %I, %Q, and %AI memories) instead of the two (%I and %Q) assigned to other types
of blocks.
For example, a High–speed Counter block has 16 bits of input data, 16 bits of output
data, and 15 words of calculated data. If a High–speed Counter block were configured
to use Reference Address 0049, the following memory locations would be used by the
block: