Watlow Electric Gateway DeviceNet User Manual
RUI/Gateway & DeviceNet
TM
Configuration & Ladder Logic Example
Using an Allen-Bradley CompactLogix PLC
Configuring the RUI/Gateway on DeviceNet
1. Prior to making the physical connections on the network setup the gateway DeviceNetTM
communications parameters per your network requirements, i.e., baud rate and node
address. If your not sure how to do this go to http://www.watlow.com and download the EZ-
ZONE
chapter.
2. Once the gateway communications parameters for DeviceNet
network requirements connect the gateway into the network and do the following:
a. Run RSLinx software and configure the driver of choice
b. Run RSNetWorx software.
3. As shown below (within RSNetWorx software), click on the online command from the tools
toolbar and then select the appropriate communications path to browse the DeviceNetTM
network. Set up in previous step using RSLinx software.
4. After successfully browsing the network all nodes on the network will appear in the graphical
Watlow
1241 Bundy Blvd
Winona, MN 55987
Telephone: 507-494-5656
© 2007 Watlow Electric Mfg Co 1 4/08
®
PM Communications Manual and follow the procedure defined in the DeviceNet
TM
Using RSNetWorx
TM
are set according to your
TM
RUI/Gateway & DeviceNet
TM
Configuration & Ladder Logic Example
Using an Allen-Bradley CompactLogix PLC
display as shown below. In this particular case, node 7 (RUI/Gateway) appears with a
question mark because it has not yet been registered on the network.
5. To register any given node on the network click on Tools and then EDS Wizard.
Watlow
1241 Bundy Blvd
Winona, MN 55987
Telephone: 507-494-5656
© 2007 Watlow Electric Mfg Co 2 4/08
RUI/Gateway & DeviceNet
TM
Configuration & Ladder Logic Example
Using an Allen-Bradley CompactLogix PLC
6. Select Register an EDS file.
7. Register a single file and then click browse to locate its location.
Watlow
1241 Bundy Blvd
Winona, MN 55987
Telephone: 507-494-5656
© 2007 Watlow Electric Mfg Co 3 4/08
RUI/Gateway & DeviceNet
TM
Configuration & Ladder Logic Example
Using an Allen-Bradley CompactLogix PLC
8. When found notice that if there is an icon with the same name the software will register it
along with the EDS file. Click next to proceed with the registration.
9. The next step verifies that there are no errors in the EDS file; a green check should be
displayed next to the file as shown below.
Watlow
1241 Bundy Blvd
Winona, MN 55987
Telephone: 507-494-5656
© 2007 Watlow Electric Mfg Co 4 4/08
RUI/Gateway & DeviceNet
TM
Configuration & Ladder Logic Example
Using an Allen-Bradley CompactLogix PLC
10. After clicking next above, the software will associate an icon to this device, if there was none
found in the previous step it will use a default icon to graphically represent this node. Click
next to proceed.
11. Clicking next above completes the registration process where the question mark is removed
and replaced with the icon of choice for node 7 (Watlow RUI/Gateway).
Watlow
1241 Bundy Blvd
Winona, MN 55987
Telephone: 507-494-5656
© 2007 Watlow Electric Mfg Co 5 4/08
RUI/Gateway & DeviceNet
TM
Configuration & Ladder Logic Example
Using an Allen-Bradley CompactLogix PLC
12. The next series of steps involves mapping the available RUI/Gateway input (84) and output
(80) bytes via the scanner into the PLC memory. Double click on the scanner module to
proceed.
13. Click on the scanlist tab where the next dialogue will suggest an upload or a download. Click
on the upload button to allow the scanner to see what is available on the network.
Watlow
1241 Bundy Blvd
Winona, MN 55987
Telephone: 507-494-5656
© 2007 Watlow Electric Mfg Co 6 4/08
RUI/Gateway & DeviceNet
TM
Configuration & Ladder Logic Example
Using an Allen-Bradley CompactLogix PLC
14. After the scanner recognizes the RUI/Gateway on the network it will then appear as an
Available Device as shown below. Before clicking on the right arrow to add it in the scanners
scan list consider the effect of the Automap on Add check box. If this box is checked and
there are other currently existing nodes on the network where they may not be using
complete words (less than 32 bits) the scanner will not consider word boundaries when
adding a new node and will attempt to utilize every available bit in the PLC. As an example, if
a given device has only 9 bytes of information it will use 2¼ 32 bit words (3 bytes not used in
the last word). Now, when adding a new node like the RU/Gateway that utilizes 80 bytes (2032 bit words with each being a separate entity, i.e., 32 bit Set Point) ¾ of the first word will be
placed in the last word of the node mentioned above. The impact of this action would then
break up all of the 20 words sent to and received from the RUI/Gateway in a convoluted way.
For this reason, it is suggested that this box be unchecked (if there are other devices on the
network) allowing the individual doing the configuration to select the appropriate word
boundaries manually.
In this case, there are no other devices on the network so leaving the Automap on Add box
checked will not have a negative impact on the gateway configuration.
Watlow
1241 Bundy Blvd
Winona, MN 55987
Telephone: 507-494-5656
© 2007 Watlow Electric Mfg Co 7 4/08
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