![background image](http://html.mh-extra.com/html/omron/devicenet-3g8f7-drm21-e/devicenet-3g8f7-drm21-e_operation-manual_743611023.webp)
6
Scanner SDK Functions
Section 1-4
Maximum Number of
Connections
The following table shows maximum number of connections allowed.
1-4-3
Maintenance Functions
Read Status Functions
The DeviceNet PCI Board can read the following information, including set-
tings and the operating status of the nodes (Master/Slaves) and network.
• Scanner SDK’s DLL version
• DeviceNet PCI Board’s driver version
• Whether or not the DeviceNet PCI Board is installed
• Network status
• Operational status in the network/status in remote I/O communications
• Communications status
• Whether or not each Slave is registered in the scan list
• Each Slave’s device status
Reset Function
The DeviceNet PCI Board can be reset (initialized) with a command from the
computer.
Communications Cycle
Time Management
This function can set the communications cycle time (interval between the
exchange of the Slave’s I/O) and read or clear the minimum and maximum
values.
Error Log
The DeviceNet PCI Board has an error log function that records information
on errors that occur during operation. The error log can be checked to pin-
point errors for faster error processing and recovery.
PC Watchdog Timer
Management
Remote I/O can be made to stop automatically if the application that controls
the DeviceNet PCI Board stops for some reason. The Board’s PC watchdog
timer is refreshed regularly from the computer (application) to notify the Board
that the application is operating normally.
Item
Specification
Max. number of client connec-
tions
63 connections (1 connection per server)
Max. number of server con-
nections
4 connections (1 connection per client)
Summary of Contents for DeviceNet 3G8F7-DRM21-E
Page 1: ...OPERATION MANUAL Cat No W381 E1 02 3G8F7 DRM21 E DeviceNet PCI Board ...
Page 2: ...3G8F7 DRM21 E DeviceNet PCI Board Operation Manual Revised July 2005 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 29: ...12 Preparation for Operation Section 1 8 ...
Page 67: ...50 PC Watchdog Timer Management Function Section 3 11 ...
Page 115: ...98 Maintenance API Functions Section 4 7 ...
Page 131: ...114 Remote I O Communications Characteristics Section 6 1 ...
Page 145: ...Index 128 ...
Page 147: ...130 Revision History ...