Battery Status Register (Read-Only, Address 50Ch); Mram Address Register; Cp 1616 Onboard Communications Processor; Introduction - Siemens SIMATIC IPC477D Operating Instructions Manual
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- Operating manual (54 pages) ,
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8.5.4.4
Battery status register (read-only, address 50Ch)
The status of the CMOS battery is monitored; the status (two-tier) can be read from the
battery status register.
Meaning of the bits
Battery status register (read-only, address 404Dh)
Bit
7
0
0
1
8.5.4.5
MRAM address register
MRAM occupies a 512 KB memory address area that can be read via PCI registers.
Meaning of the bits
MRAM address register
PCI register address:
MRAM base address register
C2B0 0000
8.5.5
CP 1616 onboard communications processor
8.5.5.1
Introduction
Typical Communication Partners
CP 1616 onboard as an IO controller
The following diagram shows a typical application: CP 1616 onboard as PROFINET IO
controller on the IO controller layer.
The IO base controller user program runs on the PC. This program accesses the functions of
the IO base user program interface.
Data traffic is routed via the communication processor to several SIMATIC S7 PROFINET IO
devices, ET 200S over Industrial Ethernet.
SIMATIC IPC477D, IPC477D PRO
Operating Instructions, 07/2015, A5E31347228-AD
6
5
4
3
2
1
0
1
1
Meaning
0
CMOS battery capacity is still sufficient.
CMOS battery capacity is exhausted (remaining capacity is
sufficient for approx. one month)
CMOS battery is empty
PCI register content:
MRAM memory address (default)
Address is assigned dynamically
(depending on device configura-
tion)
Technical information
8.5 Hardware descriptions
Length of the memory area
80000 h
169
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