Controlling The Process Images; Fieldbus Coupler Control Word; Table 93: Fieldbus Coupler Control Word - WAGO I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-354/000-001 EtherCAT® Fieldbus Coupler, ID Switch
7.5.3

Controlling the Process Images

Using the fieldbus coupler control word, the EtherCAT
content of the output process data exported to the I/O modules and also the input
process data received from the I/O modules. Control commands that are
activated in the fieldbus coupler control word are acknowledged by the fieldbus
coupler in the fieldbus coupler status word.
7.5.3.1

Fieldbus Coupler Control Word

Table 93: Fieldbus Coupler Control Word

D15 D14 D13 D12 D11 D10
0 0
Bit
D15 ... D4
OUTDIS
FREEZE
SYNC
OVRDIS
Fieldbus Coupler Control Word
High-byte
D9
0 0 0 0 0
Function
This bit field must be set by the EtherCAT
This bit controls the transmission of the output process data received by the EtherCAT
I/O modules.
0: The output process data are transmitted corresponding to the status of the EtherCAT
I/O modules.
1: The output process data are set to the value "0".
The status of the SYNC bits is not followed when OUTDIS is set to "1".
This bit controls the transmission of input process data read from the I/O modules to the EtherCAT
master.
0: The input data is sent from the I/O modules to the EtherCAT
1: The input data are maintained in the status initially read from the I/O modules. The input data are
maintained from the time point at which the fieldbus coupler recognized that the FREEZE bit had the
status "1".
This bit controls the transmission of output process data from the EtherCAT
0: The output process data are transmitted corresponding to the status of the EtherCAT
I/O modules.
1: The output data are maintained in the status initially read from the EtherCAT
The output data are maintained from the time point at which the fieldbus coupler recognized that the
SYNC bit had the status "1". The fieldbus coupler discards output data sent by the EtherCAT
while the SYNC bit is switched to "1".
This bit controls the indication of the cycle time overrun.
0: The OVRRUN bit in the fieldbus coupler status word is set during a cycle time overrun.
1: The OVRRUN bit in the fieldbus coupler status word is not set during a cycle time overrun.
Cycle time overruns are not displayed if OVRDIS is set to "1".
Function Description 113

master can influence the
Low-byte
D8 D7 D6 D5 D4
0 0 0 0

master to "0".
 master.
Reset Value: 0x0000
D3 D2 D1 D0
0

master to the

system to the


master to the I/O modules.

system to the
 .
master

master
Manual
Version 1.2.1