Siemens S7-1200 - Page 261

Basic instructions
7.8 Program control operations
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
261
Action
Operating mode
ENDIS_PW password control
After ENDIS_PW execution in a
program cycle or startup OB
STARTUP, RUN Active: Passwords are
disallowed according to
ENDIS_PW parameters
After change of the operating
mode from RUN or STARTUP
to STOP through STP
instruction, error, or STEP 7
STOP Active: Disallowed passwords
remain disallowed
Note
Password protect CPU access levels with strong passwords. Strong password
s are at least
eight characters in length, mix letters, numbers, and special characters, are not words that
can be found in a dictionary, and are not names or identifiers that can be derived from
personal information.
Keep the password secret and change it frequently.
Table 7- 103 Condition codes
RET_VAL
(W#16#...)
Description
0000
No error
80D0 The password for fail-safe is not configured.
80D1
The password for read/write access is not configured.
80D2 The password for read access is not configured.
80D3
The password for HMI access is not configured.