Troubleshooting; Devicenet Troubleshooting; Examining A Problem - Epson RC700 Manual

4. Troubleshooting

4.1 DeviceNet Troubleshooting

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 master board used with EPSON RC+ has two status display LEDs. The
layout of the LEDs is shown in the following figure.
PCU-DVNIO
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
RC700 / RC90 Option Fieldbus I/O Rev.12
Philips screwdriver
Flat-blade screwdriver
Tester
4-pin Terminal
Watchdog Port
(Do not use this port.)
Status Display LED (2)
DeviceNet Port
LED (2)
(Unused)
RJ45 Connector
(Unused)
4. Troubleshooting (DeviceNet)
Jumper Pin for Board Address Setting
JP1
JP1
0
1
C0 C1 C2
195