Slav, Slave_R Simolink Receive Block For One Actual Value - Siemens FM 458-1 DP Manual

5.2 SLAV, SLAVE_R SIMOLINK receive block for one actual
value
Symbol
Hardware address SLB ―GV
Address of the first slave ―I
Number of slaves ―I
Channel number for the actual value ―I
Enable cross-data transfer ―BO
Brief description
Mode of operation
Function Blocks - FM 458-1 DP
Edition 12.2004
SLAV
TAD
FSL
NSL
CSV
QV
A max. of 8 actual values can be transferred from max. 8 slaves using
the SLAV receive block. Each slave can only receive one actual value,
and for all of the slaves, only the same channel number is addressed.
The SLAVE and SLAVE_R function blocks are functionally identical. The
only difference is the data type of the actual value connections YA0 to
YA7:
SLAVE:
SLAVE_R:
1. The SLAV function block executes the following steps while the
system is being initialized
− Checks the task assignment,
− Initializes the task list of the SLB module corresponding to the data
configured at the inputs
2. In the normal system mode ("RUN" operating status), the SLAV
function block executes the following steps:
− Checks that the inputs are within the permissible value range
− Reads-out the actual values to be received from the receive buffer
of the SLB module#
SIMOLINK drive coupling
YA0 DI ― Actual value from slave 0
YA1 DI ― Actual value from slave 1
YA2 DI ― Actual value from slave 2
YA3 DI ― Actual value from slave 3
YA4 DI ― Actual value from slave 4
YA5 DI ― Actual value from slave 5
YA6 DI ― Actual value from slave 6
YA7 DI ― Actual value from slave 7
SEQ I ― Sequence number
YF I ― Block error status
QF BO ― Group error bit
DINT
REAL
5-9