Siemens SIMATIC S7-1200 - 8.8.5 ENDIS_PW (Enable;disable CPU passwords)

Basic instructions
8.8 Program control operations
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
307
8.8.5
ENDIS_PW (Enable/disable CPU passwords)
Table 8- 138 ENDIS_PW instruction
LAD / FBD
SCL
Description
ENDIS_PW(
req:=_bool_in_,
f_pwd:=_bool_in_,
full_pwd:=_bool_in_,
r_pwd:=_bool_in_,
hmi_pwd:=_bool_in_,
f_pwd_on=>_bool_out_,
full_pwd_on=>_bool_out_,
r_pwd_on=>_bool_out_,
hmi_pwd_on=>_bool_out_);
The ENDIS_PW instruction can allow and
disallow client connections to a S7-1200
CPU, even when the client can provide the
correct password.
This instruction does not disallow Web
server passwords.
Table 8- 139 Data types for the parameters
Parameter and type
Data type
Description
REQ IN Bool Perform function if REQ=1
F_PWD
IN
Bool
Fail-safe password: Allow (=1) or disallow (=0)
FULL_PWD
IN
Bool
Full access password: Allow (=1) or disallow (=0) full access password
R_PWD
IN
Bool
Read access password: Allow (=1) or disallow (=0)
HMI_PWD
IN
Bool
HMI password: Allow (=1) or disallow (=0)
F_PWD_ON
OUT
Bool
Fail-safe password status: Allowed (=1) or disallowed (=0)
FULL_PWD_ON
OUT
Bool
Full access password status: Allowed (=1) or disallowed (=0)
R_PWD_ON
OUT
Bool
Read only password status: Allowed (=1) or disallowed (=0)
HMI_PWD_ON
OUT
Bool
HMI password status: Allowed (=1) or disallowed (=0)
Ret_Val
OUT
Word
Function result