Technical data

>>RUN<< line (CONTROL BITS)
Control bit Meaning
»RUN«
CPU is in the RUN mode (cyclic processing is active)
RUN-6
Not used
EINPROZ
Single processor mode
BARB
PROGRAM TEST online function is active
OB1GEL
Organization block OB 1 is loaded in the user memory.
Cyclic program execution is determined by OB 1
FB0GEL
Function block FB 0 is loaded in the user memory.
Cyclic program execution is determined by FB 0 if no
OB 1 is loaded. If FB 0 and OB 1 are both loaded, OB
1 determines the cyclic program execution
OBPROZA
Process interrupt organization block OB 2 is loaded,
i.e. process interrupt-driven program execution is
possible
OBWECK
Time interrupt organization block loaded, i.e.
time-driven program execution is possible
Lines 4 and 5 (CONTROL BITS)
Control bit Meaning
32KWRAM
User memory submodule is a RAM with 32 x 2
10
words
16KWRAM
User memory submodule is a RAM with 16 x 2
10
words
8KWRAM
User memory submodule is a RAM with 8 x 2
10
words
EPROM
User memory submodule is an EPROM
KM-AUS
Address list for IPC flag outputs from DB 1 exists
KM-EIN
Address list for IPC flag inputs from DB 1 exists
DIG-EIN
Address list for digital inputs exists
Table 5-3 Meaning of the control bits in the >>RUN<< line
Table 5-4 Meaning of the control bits in lines 4 and 5
Control Bits and Interrupt Stack
CPU 928B Programming Guide
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