Siemens ET 200S 1SI Function Manual page 20

Function blocks of the ET 200S 1SI serial interface module
3.2 Function blocks _ET200S_SIxx_send
Depending on which data interface you have chosen in the hardware configuration, you use
the _ET200S_SI04_send function block for the 4-byte data interface, the
_ET200S_SI08_send function block for the 8-byte data interface, and the
_ET200S_SI32_send function block for the 32-byte data interface of the serial interface
module.
For the transfer, you can use the 3964 (R) protocol or ASCII driver.
Call (LAD representation)
Parameter description
Table 3-1 Parameter _ET200S_SIxx_send
Name P type
1)
execute IN
reset IN
dataOffset IN
dataLength IN
periIn IN
periOut IN/OUT
data IN/OUT
20
Data type
BOOL
BOOL
INT
INT
ARRAY [0..3] of BYTE /
ARRAY [0..7] of BYTE /
ARRAY [0..31] of BYTE
ARRAY [0..3] of BYTE /
ARRAY [0..7] of BYTE /
ARRAY [0..31] of BYTE
ARRAY[0..1023] of
BYTE
Meaning
Initiates request on positive
edge
Aborts request
Offset of the first element to be
sent
Number of elements to be sent
1 ≤ dataLength ≤ 224
Transfers I/O inputs of the se‐
rial interface module to FB
Prepared data of the FB for the
I/O outputs of the serial inter‐
face module
2)
Send data array
Supplement to the ET 200S 1SI serial interface module
Actions performed by
user
Entered
Entered
Entered
Entered
I/O variable of the I/O
inputs of the serial mod‐
ule transferred to the FB
Checked and entered
on the I/O variable for
the I/O outputs
Entered
Function Manual, 01/2015, xxx
Actions per‐
formed by
block
Checked
Checked
Checked
Checked
Checked
Entered
Checked