Technical data

1.8 What is New with the CPU 928B (-3UB12)?
The CPU 928B (-3UB12) offers you the following new functions
compared to the CPU 928B (-3UB11).
Additional restart type:
RETENTIVE COLD
RESTART
1)
As well as the existing restart types (MANUAL/AUTOMATIC
COLD RESTART; MANUAL/AUTOMATIC WARM RESTART)
you can use the following additional restart types:
•• RETENTIVE MANUAL COLD RESTART
•• RETENTIVE AUTOMATIC COLD RESTART
You can set these restart types by assigning parameters in DX 0.
Delay interrupt As well as the familiar time interrupts, an additional delay interrupt
is processed by the new OB 6 organization block.
The delay interrupt has a time resolution of 1 ms.
You assign parameters to the desired delay time with the new
OB 153
organization block.
Alternative loading of data
blocks
1)
You can use the programmer to load data blocks into DB RAM first,
instead of into the user memory. Selection of the loading mode is
controlled via bit 0 in system data word RS 144.
SINEC L1 via the 2nd serial
interface
1)
Connection to the SINEC L1 LAN (with the new L1 interface card)
has been expanded for communication via the second serial interface:
•• Use as slave in
- Normal communication
- Internode communication
- Interrupt communication
- Broadcast;
•• Use as master in point-to-point connections.
1)
can be retrofitted to CPU 928B (-3UB11)
1
What is New with the CPU 928B (-3UB12)?
CPU 928B Programming Guide
C79000-D8576-C898-01
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