442
7-1
PC Setup Overview
Parameter
Function
Normal application(s)
A:Hold areas
H:Hold areas
Specifies which bits are to maintain
status when power is turned off.
To extend the Holding Area beyond
CIO 0300.
R:Hold bits
Specifies Racks or Masters (Remote
I/O Subsystems) that are to maintain
status when operation is stopped or
modes are changed.
To maintain output status for specific
Racks or Remote I/O Subsystems.
B:Startup
hold
K:Forced Status
(A00013)
Maintains the status of the Forced
Status Hold Bit when power is turned off
and on.
To maintain the status of bits forced ON
or OFF.
I:I/O bits (A00012)
Maintains the status of the IOM Hold Bit
when power is turned off and on.
To prevent I/O status from being cleared
when power is turned on.
D:Power on flag
(A00011)
Fixed at “Do not hold” in CVM1D PCs.
---
C:Startup mode
Specifies the initial PC operating mode.
To automatically start the PC when
power is turned ON. Set the mode to
MONITOR or RUN when using restart
continuation.
D:Startup processing
Specifies whether the user program is
loaded from the Memory Card when
power is turned on.
To enable using a ROM Memory Card
without a backup battery.
E:I/O refresh
Fixed at “cyclic refreshing” in CVM1D
PCs.
---
F:Execute
control 1
B:Detect low
battery
Specifies detection of CPU battery
errors.
To disable detection when batteries are
not being used.
S:Error on power
off
Fixed at “Not an error” in CVM1D PCs.
---
T:CPU standby
Specifies whether the CPU is to go on standby or start operation while initializing
the system or detecting terminators in SYSMAC BUS/2 Systems.
K:Measure CPU
SIOU cycle
Specifies whether or not the CPU Bus Unit servicing cycle is to be measured.
G:Execute
control 2
C:Execute process
Fixed at “synchronous operation” in
CVM1D PCs.
---
I:I/O interrupt
Not applicable in CVM1D PCs.
D:Power OFF
interrupt
Fixed at “No power OFF interrupt” in
CVM1D PCs.
---
A:Dup action
process
Not applicable in CVM1D PCs.
T:Step timer
Not applicable in CVM1D PCs.
J:Startup trace
Specifies whether a trace is to be automatically executed when power is turned on.
B:*DM BIN/BCD
Specifies whether indirect addresses
are treated as binary (memory
addresses) or BCD (data area
addresses).
To enable indirectly addresses for the
entire DM and EM areas by using
binary addresses.
P:Multiple use of
JMP000
Specifies whether or not multiple JMP000 instructions can be programmed.
E:Comp error
process
Specifies whether I/O verification errors are to be fatal or non-fatal.
H:Host link
Sets communications parameters for
the host link interface.
These settings must be made when
using the host link interface.
I:CPU bus link
Specifies whether or not CPU bus links
are to be created.
To enable linking of two or more BASIC
Units.
J:Scheduled interrupt
Not applicable in CVM1D PCs.
---
K:1st Rack addr
Sets the first word for each of the CPU,
Expansion CPU, and Expansion I/O
Racks.
To simplify word allocations, to prevent
changes in allocations, or to allow for
expansion without changes in
allocations.
PC Setup Overview
Section 7-1
Summary of Contents for CVM1D
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