227
Errors When Downloading
Section 8-2
Connection can not be opened.
1. Could not establish connection with device when downloading to the de-
vice via DeviceNet. Check that the power is ON to the device and down-
load again.
2. The connection resources available for the device are being used to es-
tablish safety I/O connections with the Safety Master, so a connection
cannot be established with the Network Configurator. Change the oper-
ating mode of the Safety Master to which the safety connections are reg-
istered to IDLE mode.
3. If the above causes do not apply, noise or other factors may be making
communications unstable. Check the following items.
• Do all nodes have the same baud rate?
• Is the cable length correct (trunk lines and branch lines)?
• Is the cable disconnected or slack?
• Is the terminating resistance only on both ends of the main line?
• Is there a lot of noise?
Sending message failed.
Downloaded via USB to the device but could not connect to the device.
Check that the power is turned ON to the device and download again.
Connection failed.
Tried to configure a device on the DeviceNet network via the NE1A-series
Controller USB port, but connection failed. Check that power is turned ON
to the device and download again.
If the above cause does not apply, noise or other factors may be making
communications unstable. Check the following items.
• Do all nodes have the same baud rate?
• Is the cable length correct (trunk lines and branch lines)?
• Is the cable disconnected or slack?
• Is the terminating resistance only on both ends of the main line?
• Is there a lot of noise?
In order to configure the device, the device
needs to be reset. Because, the device is
configured by another device.
The Safety Slave was configured from a Safety Master last time (see
note). Reset the Safety Slave to default settings and download the device
parameters again.
Note:
5-1-2 Setting Safety Connection Parameters
for information on con-
figuration from Safety Masters.
Logic is incomplete. Please confirm logic.
There are open inputs or outputs in a function block used in the logic pro-
gram. Click the
Edit
Button on the Logic Tab Page to open the logic and
perform the following measures.
• Connect the open inputs or outputs.
• Change the number of I/O setting for the function block to delete the open
input or output.
Function blocks with open inputs or outputs can be searched by using
Edit
– Find Function Blocks with Open Connections
. For details, refer to
Finding Function Block with Open Connections
in
6-3-3 Programming
Using Function Blocks
and
Precautions Updating from Network Configura-
tor Version 1.3
@
to a Higher Version on page xxxi.
Message displayed on the Network
Configurator
Countermeasure
Summary of Contents for DeviceNet Safety
Page 1: ...SYSTEM CONFIGURATION MANUAL Cat No Z905 E1 07 DeviceNet Safety...
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Page 5: ...DeviceNet Safety System Configuration Manual Revised July 2009...
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Page 11: ...ix TABLE OF CONTENTS Appendix 277 Glossary 333 Index 335 Revision History 339...
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Page 167: ...133 Safety Slave Settings Section 5 2...
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