PEB2045-N SIEMENS [Siemens Semiconductor Group], PEB2045-N Datasheet - Page 32

• Manufacturer Part Number: PEB2045-N
• Description: Memory Time Switch CMOS (MTSC)
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

PEB 2045
PEF 2045
3.4
Standby Mode
With MOD:SB being logical 1 the PEx 2045 works as a backup device in redundant systems. It can
be accessed via the P interface and works internally like an active device. However, the outputs
are high impedance. If the SB bit is reset the outputs are switched to low impedance for the
programmed active channels and this MTSC can take over from another device which has been
recognized as being faulty. (See figure 20)
Figure 20
Device Setup in Redundant Systems
Semiconductor Group
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