Siemens SINUMERIK 840D sl Function Manual page 508

Data descriptions
9.7 System variable
System variable
$A_FRDP_SUBS[n] Those substitute values are speci‐
fied, which are output to the SPL in
certain states
$A_FRDP_ERR_RE Response when a communication
AC[n] error occurs
$A_FRDP_ACK_REI Error-free F-telegrams are again cy‐
[n] clically exchanged after a communi‐
cation error
Outputs
$A_FRDP_ER‐ There is a communication error
ROR[n]
$A_FRDP_SUBS_ Substitute values are output to the
ON[n] application
$A_FRDP_ACK_RE Error-free F-telegrams are again cy‐
Q[n] clically exchanged after a communi‐
cation error
$A_FRDP_SEND‐ Actual operating mode of the F-
MODE[n] CPU of the F_SENDDP communi‐
cation partner
$A_FRDP_DIAG[n] The cause of the communication er‐
ror determined by F_RECVDP is
communicated
Miscellaneous
508
Meaning
n = 1, ..., 16
stands for the
number of the F-
RECVDP rela‐
tionship, is also
valid for
$A_FRDP_ERR
_REAC,
$A_FRDP_ACK
_REI,
$A_FRDP_ER‐
ROR,
$A_FRDP_SUB
S_ON,
$A_FRDP_ACK
_REQ,
$A_FRDP_SEN
DMODE,
$A_FRDP_DIA G
n = 1, ..., 16
n = 1, ..., 16
n = 1, ..., 16
n = 1, ..., 16
n = 1, ..., 16
n = 1, ..., 16
n = 1, ..., 16
Value range Data type
INT
INT
BOOL
BOOL
BOOL
BOOL
BOOL
INT
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Possible access for
Part Synchronized
program action
r w r w
x x x x
x x x x
x x x x
x x
x x
x x
x x
x x
Safety Integrated