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105
Basic PC Operation and I/O Processes
Section 4-7
Note
If an out-of-range value is set, the following communications conditions will
result. In that case, reset the value so that it is within the permissible range.
Communications mode:
Host Link
Communications format:
Standard settings
(1 start bit, 7-bit data; even parity, 2 stop bits,
9,600 bps)
Transmission delay:
No
Node number:
00
4-7
Basic PC Operation and I/O Processes
This section explains the PC Setup settings related to basic operation and I/O
processes.
4-7-1
Startup Mode
The operating mode the PC will start in when power is turned on can be set as
shown below.
Note
When the “startup mode designation” is set to 00, the operating mode at star-
tup depends upon the connected Programming Device and the setting on pin
4 of the CPM2C-S CPU Unit’s DIP switch.
Refer to
1-3-3 Operating Mode at Startup
for complete details.
Error Log Settings (DM 6655)
The following settings are read regularly by the CPU while the PC is ON.
DM 6655
00 to 03
Style
0 (Hex): Shift after 7 records have been stored
1 (Hex): Store only first 7 records (no shifting)
2 to F (Hex): Do not store records
04 to 07
Not used.
08 to 11
Cycle time monitor enable
0 (Hex): Generate a non-fatal error for a cycle time that is too long.
1 (Hex): Do not generate a non-fatal error.
12 to 15
Low battery error enable
0 (Hex): Generate a non-fatal error for low battery voltage.
1 (Hex): Do not generate a non-fatal error.
Word(s)
Bit(s)
Function
15
Bit
DM6600
0
Startup Mode Designation
00 (Hex): See note below.
01 (Hex): Operating mode last used before power was turned OFF
02 (Hex): Mode set in bits 00 to 07
Startup Mode
(Bits 08 to 15: Valid when bits 00 to 07 are set to 02)
00 (Hex): PROGRAM mode
01 (Hex): MONITOR mode
02 (Hex): RUN mode
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