Automation Direct Do-more H2 PLC Series, Руководство пользователя по оборудованию

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Do-more H2 Series PLC Hardware User Manual, 1st Edition, Rev. F - H2-DM-M
3–9
Chapter 3: Specifications - CPU Modules
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
As mentioned in the previous table, the CPU mode can also be changed through the
programming software if the mode switch is placed in the TERM position. In this position,
the CPU can be changed remotely between the Run and Program modes. For more information
on changing CPU modes through the software, see the “Step 9: Write Project to the Do-more
PLC” section of Chapter1 “Getting Started”.
When power is applied to the system, the controller will go through it’s power-up sequence
then either stay in Program mode if the mode switch is in the STOP position, or attempt to
go to Run mode if the mode switch is in the RUN position.
If the mode switch is in the TERM position, the controller will return to the last operational
mode before power was lost. For example, if the controller was in Run mode when power was
lost, when power is restored and the mode switch is in the TERM position, the controller will
attempt to return to Run mode.
DIP Switch Specifications
Do-more controller’s circuit board has a block of DIP switches that are used to perform
various debug and reset operations. The DIP switch settings are only read when the system is
first powered up. Changing the settings of the DIP switches requires that the base containing the
controller be powered down and the controller removed from the base. The DIP switches can
then be changed as required. The controller can then be reinstalled in the base and the system
powered back up. The DIP switch block is located on front of the controller’s PWB, and is
only accessible when the controller
is NOT installed in the base.
The default position for all of the
DIP switches is OFF. The following
table describes the position and
function associated with each DIP
switch.
Do-more controllers make use of
combinations of DIP switch settings
and the Mode switch on the front of the
controller to perform two reset functions.
These reset functions can only be
performed when the controller is in the
boot loader.
76543210 76543210
ON ON
76543210 7654321076543210
DIP Switch Settings
Switch
Number
Switch
Position
Function
0
ON Load the oldest copy of the operating system.
1
ON Do not load an Operating System, stay in the Booter.
2
ON
Disable the hardware watchdog timer - the hardware
watchdog is always enabled, but this switch allows the
user to override the ability of the Force Watchdog Error
(WATCHDOG) and Debug Mode to generate a Watchdog
condition.
3
ON Disable ability to update the firmware and/or gate array.
4
ON Reserved
5
ON Reserved
6
ON Reserved
7
ON
Reset the TCP/IP Network Settings to factory default
values - Must be used with DIP #1