Parameters For Dx 0 - Siemens CPU 948 Programming Manual

Parameters for DX 0

7.3 Parameters for DX 0
Table 7-1 DX 0 parameters and their meaning
Field ID/length Parameters
1st/2nd word
2)
01xx 1000
1001
02xx 1000
1001
1002
2000
2001
BB00
4000
4001
04xx 1000
4000
4001
05xx 1000
1001
7 - 8
1)
Meaning
Modes
D Interrupts at block boundaries
(CPU 946/947: 150U mode)
Interrupts at operation boundaries
(CPU 946/947: 155U mode)
Start-up program execution
D AUTOMATIC WARM RESTART after POWER UP
AUTOMATIC COLD RESTART after POWER UP
MANUAL COLD/WARM RESTART after POWER UP
D Synchronization of START-UP in the multiprocessor mode
No synchronization of START-UP in the multiprocessor
mode
5)
00yy Number of timers to be updated yy:
Permitted values:
D yy = FF (timer T 0 to T 255)
D Restart type = WARM RESTART
Restart type = RETENTIVE COLD RESTART
Cyclic program execution
00yy Setting the cycle monitoring time:
Cycle monitoring time = (yy
Permitted values:
D yy = 14H (200 ms)
D Updating of the process image and IPC flags without
semaphore protection
Updating the process image and IPC flags with semaphore
protection (in the field, refer to Section 10.1.3)
Interrupt servicing: timed interrupts
000c D Timed interrupt servicing "on"
0000 Timed interrupt servicing "off"
c = level priority, permitted values:
D c = 1 (highest level priority)
3)
4)
6)
00H to FFH
7)
10 ms)
*
01H to FFH
1 to 5
CPU 948 Programming Guide
C79000-G8576-C848-04