Rockwell Automation 1734-IT2I Thermocouple and RTD Input Module User Manual - Manual (Page 28)

Publication 1734-UM004F-EN-E - December 2012
18 Configure Your Module
Using the RSNetWorx Commissioning Tool
Use the RSNetWorx commissioning tool to commission devices (set the node
address and the data rate parameters) that are:
• connected to a DeviceNet network.
• connected via a point-to-point connection.
The node commissioning tool works through RSLinx; RSNetWorx does not
have to be online when performing the operation.
Before you can add any device to a DeviceNet network, it must be
commissioned. This means that a node address and a data rate must be
programmed into the device. Some devices are precommissioned, meaning a
node address (usually set to 63) and a data rate (usually set to 500 Kbps) are
programmed into the device at the factory prior to shipment. Other devices
muse be commissioned in the field. Once a device is commissioned and
attached to a network, you can use the RSNetWorx for DeviceNet node
commissioning tool to edit the node address and data rate that were set
previously.
For example, if two of the devices on your network are a photoelectric sensor
and a hand controller, and you accidentally change the node address of the
hand controller to be the same as that of the photoelectric sensor, then the
photoelectric sensor no longer has a unique address, which means that it is not
be able to provide data to the scanner. If you cannot access a device because
you have used its node address for another device, you have to remove it from
the network, recommission it, then reinstall it on the network.
IMPORTANT
Exercise caution while editing node addresses when on a
network. When you apply a new node address, it immediately
overwrites the node address data in the device currently
specified. If you decide to reassign node addresses, you should
first determine the order you use so that all the devices still
have unique node addresses when you are finished.
ATTENTION
Do not change the data rate of devices while they are
connected to a network. Erratic operation may result. We
recommend that if you need to change the data rate of a device,
you should remove it from the network, establish a
point-to-point connection between the PC, which hosts the
RSNetWorx for DeviceNet software, and the target device,
recommission it, and then, reconnect it to the network.