Siemens SINUMERIK 840D sl Function Manual page 507

System variable
$A_MARKER‐ Image of the PLC markers
SIPD[n]
$A_TIMERSI[n] Timer
F_SENDDP
Inputs
$A_FSDP_ERR_R Response when a communication
EAC[n] error occurs
Outputs
$A_FSDP_ER‐ There is a communication error
ROR[n]
$A_FSDP_SUBS_ Substitute values are output to the
ON[n] application at the F_RECVDP (re‐
ceiver)
$A_FSDP_DIAG[n] The cause of the communication er‐
ror determined by F_SENDDP is
communicated
F_RECVDP
Inputs
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Meaning
n = 1, 2, ...6
stands for the
number of the
double word (32
bit)
n = 1, 2...16
stands for the
number of the
timer
n = 1, ..., 16
stands for the
number of the F-
SENDDP rela‐
tionship, is also
valid for
$A_FDFSDP_E
RROR,
$A_FSDP_SUB
S_ON,
$AFSDP_DIAG
n = 1, ..., 16
n = 1, ..., 16
n = 1, ..., 16
Value range Data type
INT
1)
REAL
INT
BOOL
BOOL
INT
Data descriptions
9.7 System variable
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
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