WAGO-I/O-SYSTEM 750 XTR
Commissioning 59
750-652/040-000 Serial Interface RS-232/RS-485 XTR
Manual
Version 1.3.0
You can also put the I/O module into another operating mode. Here the changed
configuration is saved and the inputs and outputs of the I/O module are switched
immediately according to the operating mode.
Note the warning for wiring!
In case of a change of operating mode, a warning appears that points out that it
may be necessary to change the wiring.
8.2
Configuration and Parameterization via GSD File
with PROFIBUS DP and PROFINET IO
Other parameterization methods are available depending on the fieldbus coupler/
controller used. The desired operating mode can be set via PROFIBUS and
PROFINET device description (GSD file) parameterization. The parameterization
description can be found in the appendix under “Configuration and
Parameterization via GSD File.”
8.3
Data Transfer
The following chapters describe data transfer in all operating modes for serial
transmission and in the Data Exchange operating mode.
8.3.1
Example of Operating Modes for Serial Transmission
The control of the transmission and receipt operation is handled with the control
and status byte. Requests are indicated by the change (toggle) of a bit. The
successful processing is indicated by an assigned bit. It takes the value of the
request bit.
Initialize I/O module:
•
Setting of IR in control byte C0
•
Initialization of the I/O module
•
Blocking of the transmit and receive functions
•
Deletion of the transmit and receive memory
•
Loading of the configuration data in the serial I/O module
Transmit data:
•
TR = TA: Writing of the characters to be transmitted in output bytes D0 to Dn
•
Number of characters to be transmitted is specified in OL0 to OL5
•
Inversion and output of TR
•
Transfer to the output buffer takes place when TR = TA
Receive data:
•
RR
≠
RA: in input byte 0 to n characters are available
•
Number of characters received is specified in IL0 to IL5
•
Reading out of the characters in IL0 to IL5
