Turn On And Start Up - Honeywell ML200 Series Installation And Commissioning Manual

Chapter 3 - Plan and Install MLPLC
Configuring the Dip switch settings
The following table lists the different types of switches in ML200R.
Table 24: ML200R Dip switch settings
Switches
BOOT/NORMAL
switch
A/B side switch
(CPU position
designation switch)
Reset/D. Clear
switch
3.4

Turn on and start up

Depending on the CPU types used, verify the following before turning on and starting the system.
Description
Downloads new operating system or upgrades CPU firmware
before releasing the product.
ON (right): For normal CPU operation mode.
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OFF (left): Downloads new operating system. It is reserved
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for use by Honeywell factory/authorized personnel.
Switching to this position by user is strictly prohibited.
Note: Both Boot/Nor switches must always be set to ON (right)
position. Setting it to OFF (left) position may cause abnormal
operation or damage to modules.
Defines CPU classification
CPU module is 'A', if the switch is set to the left.
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CPU module is 'B', if the switch is set to the right.
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Two CPU must have different settings (you can check it
l
using software).
A same setting does not affect operation but may not
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operate in a normal way.
Resets CPU when switch is set to the left.
Left → Center: RESET
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Left → more than 3s → Center: Overall RESET
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Clears data when switch is set to the right.
Right → Center: clears memory area for M, auto-allocated
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retain, general data memory address.
Right → more than 3s → Center: Clears memory area for
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M, auto allocated retain, General Data Memory Address
and R Area.
Note: Data clear is only performed in 'STOP' mode.
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