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4-25
SIMATIC 545/555/575 System Manual
Installing 575 System Hardware
Table 4-3 lists the configuration options you can select using the dipswitch
on the CPU board (5752105/2106 CPUs) or on an HSIO annex card or a
PROFIBUS-DP annex card when used with a 5752104 CPU. These options
are explained in more detail on the following two pages.
Table 4-3 Dipswitch Configuration Options
Switch
Switch
Position
Description
On On For 5752126 annex card, selects remote I/O baud rate. Do not change.
1 2
Off Off For 505CP5434DP annex card, reserved for factory use. Do not change.
BASE ADDRESS selections: These dipswitches select the base address for the 575 system tables
(A24 address space) and global control and status registers (A16 address space). Section 4.15
describes how the 575 allocates VMEbus memory.
A24 Base Address A16 Base Address
3 4
On On 000000
16
0000
16
(Assumed value if AUTO-CONFIGURED.)
On Off 400000
16
4000
16
Off On 800000
16
8000
16
Off Off C00000
16
C000
16
5
On
ASSERT/WAIT FOR SYSRESET* to recover from FAULT. If the primary 575 is in
slot 1 (only a 575 primary residing in slot 1 can issue SYSRESET*), it issues
SYSRESET* during FAULT recovery. The 575 secondaries do not recover from
FAULT mode unless SYSRESET* is issued. (AUTO-CONFIGURED value.)
5
Off
DO NOT ASSERT/WAIT FOR SYSRESET* to recover from FAULT. The 575 primary
coordinates FAULT recovery with the 575 secondaries without issuing
SYSRESET*.
On
AUTO-CONFIGURED SW3 through SW5 and SW7 are ignored. This option
allows compatibility with earlier releases (that is, with 575 Release 2.0
through 575 Release 3.0).
6
Off
USER-CONFIGURED configuration in SW3 through SW5 and SW7. If this
option is selected, then any 5752104 CPU must have a remote I/O annex
card, and switches SW3 through SW6 must be set to the same position.
7
On
PRIMARY-575 Only one 575 CPU can be configured as a primary. All other
575s must be configured as secondaries. If a 575 CPU is in slot 1, then it is
configured as the primary, regardless of the switch position.
Off
SECONDARY-575
On AUTO RECOMPILE function disabled.*
8
Off AUTO RECOMPILE function enabled.*
*Available on CPU models 5752105/2106 Release 5.1 or greater. Refer to Appendix F for more information
about the Auto Recompile function.
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