Residence list where there is no MM redundancy
A description of this resolution:
- Create a RAM residence list
Enter the following formats in the residence list pattern):
ZS3EBB; EBLXXX; ZS1STD; ZS2STD; ZS3GRP; ZS4GRP; EBMKPF;
For the SEQ: ZS3SEQ (+ structure display).
For the overview display: ZS3UEB (+ name of the overview display for the alarm page: DSS01; UDSS01 to UDSS06; DPIF01; RE DZEI01; DSF01; UDSF01; DSB01; RE UDSB01; UDSSS1.
For the graphic displays: all character sets, formats and variable names.
The behaviour of an individual display as an integral part of a scrolling page is currently being reviewed.
All formats together with 1 controller, 1 monitoring, 1 sequence control, 1 alarm page, 1 counter, 1 group display, 1 overview display and 1 structure display occupy:
- 1050 Byte in the function list 7400 Byte in the supply list.
BASIC display variables: While MM local basic programs are not specifically listed in the documentation on the RAM residence list 30/70-5320), they can be entered as local functions in the residence list without any particular restrictions.
"Residence list where there is no MM redundancy" resolves the following:
If mass memory redundancy is not implemented, the system’s operator function fails in the event of a mass memory error.
The underlying cause is:
- No access to the system list
If the single hard drive fails, access to the system list is impossible. This means that display and operating procedures are blocked.