Signal_Set (Set Rs-232 Signals) - Siemens SIMATIC S7-1200 System Manual
Hide thumbs
Also See for SIMATIC S7-1200:
- Function manual (527 pages) ,
- Manual (364 pages) ,
- System manual (338 pages)
Table of Contents
Advertisement
Communication processor and Modbus TCP
13.3 Point-to-point (PtP) communication
Table 13- 33 Condition codes
STATUS (W#16#....)
81F0
81F4
8280
8282
13.3.5.10
Signal_Set (Set RS-232 signals)
Table 13- 34 Signal_Set (Set RS232 signals) instruction
LAD / FBD
STEP 7 automatically creates the DB when you insert the instruction.
1
Table 13- 35 Data types for parameters
Parameter and type
REQ
IN
PORT
IN
SIGNAL
IN
RTS
IN
DTR
IN
DSR
IN
DONE
OUT
1130
Description
CM or CB is RS485 and no signals are available
Error in the block header, for example, wrong block type or wrong block length
Negative acknowledgement while reading the module
DP slave or module not available
SCL
"Signal_Set_DB"(
REQ:=_bool_in_,
PORT:=_word_in_,
SIGNAL:=_byte_in_,
RTS:=_bool_in_,
DTR:=_bool_in_,
DSR:=_bool_in_,
DONE=>_bool_out_,
ERROR=>_bool_out_,
STATUS=>_word_out_);
Data type
Description
Bool
Start the set RS232 signals operation, on the rising edge of this input
(Default value: False)
PORT
After you install and configure a CM or CB communication device, the
port identifier appears in the parameter helper drop-list available at the
PORT box connection. The assigned CM or CB port value is the device
configuration property "hardware identifier". The port symbolic name is
assigned in the "System constants" tab of the PLC tag table. (Default
value: 0)
Byte
Selects which signal to set: (multiple allowed). Default value: 0
01H = Set RTS
•
02H = Set DTR
•
04H = Set DSR
•
Bool
Request to send, module ready to send value to set (true or false), De-
fault value: False
Bool
Data terminal ready, module ready to send value to set (true or false).
Default value: False
Bool
Data set ready (only applies to DCE type interfaces), not used.
Bool
TRUE for one execution after the last request was completed with no
error
Description
Signal_Set sets the states of
RS232 communication signals.
This function is valid only for the
RS232 CM.
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
Advertisement
Table of Contents
