Troubleshooting; Devicenet; Exclusion; Tools - Epson RC620 Manual

4. Troubleshooting (DeviceNet)

4. Troubleshooting

4.1 DeviceNet

Exclusion

Every system has its special environment, conditions, specifications, and usages. This
guide is provided as a general reference for troubleshooting a DeviceNet network. Every
effort has been made to ensure the information is accurate. However, we do not guarantee
the complete accuracy of the information and thus we decline any liability for damages or
costs incurred by the use of this troubleshooting.
Before examining a problem on the network, please ensure that your established
DeviceNet system satisfies network specifications. (Refer to this troubleshooting and the
section 2.2 DeviceNet Network Construction.)

Tools

Prepare the following tools for troubleshooting.
 TIP
Using the Woodhead NetMeter (DeviceNet diagnostic tool) is a simple way to learn
physical status of the DeviceNet network. For details of NetMeter, see Woodhead's Web
site (http://www.mysst.com/diagnostics/NetMeter.asp).

4.1.1 Examining a Problem

4.1.1.1 Scanner Board Diagnostic LEDs
The DeviceNet board used with EPSON RC+ has two status display LEDs. The layout of
the LEDs is shown in the following figure.
PCI-DVNIO
Port for Board Configuration
The Module/NetWork LED is on the left side and the IO LED is on the right side seen
from the rear panel. These LED names are used in applicomIO Console application and
140
Philips screwdriver
Flat-blade screwdriver
Tester
4-pin Terminal
Watchdog Port
(Do not use this port.)
Male 9-pin D-Sub
Status Display LED (2)
Left: Module/NetWork LED
Right: IO LED
DeviceNet Port
Jumper Pin for Board Address
JP1
RC620 Option Fieldbus I/O Rev.8
JP1
0
1
C0 C1 C2