Setting Parameters - Omron SYSMAC CS Series Operation Manual

Configuring the Slave Devices
!Caution In the current version of CX-Profibus, the watchdog value for each of the
6-3-2

Setting Parameters

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• request re-parameterization from the Master, before resuming I/O data
exchange.
If disabled, the slave will remain in data exchange, even if the Master is not
communicating, thus maintaining its outputs in the latest known state,
based on the last I/O data exchange message.
2. Watchdog Interval
This value is the watchdog timeout related to the Master-Slave communi-
cation time out.
Note Enabling the Watchdog Control is highly recommended for safe operation of
the network.
slave devices is overruled by the value determined by the Master DTM.
Therefore, changing the value in the Generic Slave DTM has no effect.
When done, making the I/O configuration settings, press the Apply button at
the bottom of the window. Next, select the Parameter tab, to make the neces-
sary parameter selections.
The parameters are sent by the Master Unit to the slave device prior to estab-
lishing I/O data exchange. The slave device will reject incorrect parameters
and not establish I/O data exchange, unless the parameters are changed.
In general there will be two types of parameters.
• Common Parameters
Most of the slave devices require at least the common parameters. These
parameters apply to the whole slave device.
• Module Parameters
Modular slaves often apply parameters related to a specific I/O module,
e.g. the physical slave device consist of a number of hardware modules,
each defining an amount of I/O data, requiring its I/O module selection
and requiring its own parameters.
Section 6-3