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443
Parameter
Normal application(s)
Function
L:Group 1,2 1st addr
Sets the first word for group-1 and
group-2 Slaves for each Master.
To prevent overlapping of word
allocations when group-1 and group-2
Slaves require more then 50 words per
Master.
M:Trans I/O addr
Sets the first word for I/O Terminals for
each Master.
To separate I/O Terminal allocations
from those for other Slaves.
N:Group 3, RT 1st addr
Sets the first word for each Slave Rack.
To simplify word allocations, to prevent
changes in allocations, or to allow for
expansion without changes in
allocations.
O:CV–SIOU 1st addr
Not used at present.
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P:Power break
Fixed at 0 (no momentary power
interruptions) in CVM1D PCs.
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Q:Cycle time
Sets a minimum cycle time.
To eliminate irregular I/O delays.
R:Watch cycle time
Sets a maximum cycle time.
To stop operation when a specified
cycle time is exceeded or to enable
longer cycle times by setting a high
maximum.
S:Error log
Sets the number of records recorded
and the words in which they are
recorded.
To increase the number or error records
that are maintained.
T:IOIF, RT display
Sets the startup display mode for the 7-segment displays on I/O Control Units, I/O
Interface Units, and SYSMAC BUS/2 Slave Racks.
7-2
PC Setup Details
Name
Operation
A:Hold
areas
Hold area
The status of bits specified here will be maintained when power is turned off and
on. The holding bits can be set in any continuous range between CIO 1000 to
CIO 2399. Be sure to perform the Create I/O Table operation or turn the power off
and on after changing this parameter.
Do not specify any bits allocated to I/O points on Remote I/O Units. Outputs on
Remote I/O Units will remain on after program execution stops if they are in the
hold area.
(Default: CIO 1200 to CIO 1499)
Hold bits
The I/O status on Racks specified here or in all Slaves connected to Masters
specified here will be maintained when operation is stopped or when PC
operating modes are changed. Status will not be maintained for these outputs
when power is turned off. Be sure to perform the Create I/O Table operation or
turn the power off and on after changing this parameter.
(Default: nothing held)
B:Startup
hold
Forced Status Hold
Bit status (A00013)
(Forced status)
Specify whether the status of the Forced Status Hold Bit is to be maintained or
reset to OFF when power is turned on. If A00013 is reset, the forced ON/OFF
status of all force-set and force-reset bits will be cleared when power is turned
on. Changes to this setting are effective the next time the power is turned ON.
(Default: A00013 turned OFF)
IOM Hold Bit status
(A00012)
(I/O bits)
Specify whether the status of the IOM Hold Bit is to be maintained or reset to
OFF when power is turned on. If A00012 is reset, the CIO Area, Transition Flags,
Timer Flags, Timer PVs, index registers, data register, and the Current EM bank
number will be cleared when power is turned on. Changes to this setting are
effective the next time the power is turned ON.
(Default: A00012 turned OFF)
Restart Continuation
Bit status (A00011)
(Power on flag)
This setting is fixed at “Do not hold” (A00011 turned OFF) in CVM1D PCs.
C:Startup mode
Designate the PC operating mode to be set when PC power is turned ON.
Changes to this setting are valid the next time the power is turned ON.
(Default: PROGRAM)
PC Setup Details
Section 7-2
Summary of Contents for CVM1D
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