C500LK009V1 Omron, C500LK009V1 Datasheet - Page 54

• Manufacturer Part Number: C500LK009V1
• Description: PC LINK UNIT
• Manufacturer: Omron

Specifications of C500LK009V1

• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Setting Network Parameters
C200HW Units
4-6
Communications Cycle Time This parameter sets a timer that fixes the length of the communications cycle to
Maximum Node Number
Number of Polling Units
Maximum Number of Frames This parameter determines how many event transmissions can take place dur-
40
Setting Network Parameters
Note Always turn the PC’s power off before changing the polling unit setting
Note Set the maximum node number above the highest node number set on the SYS-
The polling unit is set with DIP switch 2, pin 4 on the C200HW-SLK13/14/23/24
Units, as shown below.
The operation of the SYSMAC LINK Network is determined by the network
parameters. Network parameters are set with Peripheral Devices such as the
SSS/CVSS, and are automatically backed up in EEPROM within the SYSMAC
LINK Unit.
The following table shows the network parameters, their default values, and the
range within which the parameters can be set by the user. Default values and
setting ranges are in decimal.
the specified time. The timer operates only when the data link is in operation. Set
the communications cycle time when setting the data link table’s common link
parameters.
When the timer is in operation, the communications cycle time is fixed at the spe-
cified value, independent of the number of events that occur. Refer to 5-10 Data
Link Characteristics for the formula needed to calculate the communications
cycle time when the data link is set for automatic generation.
This parameter sets the maximum node number that a node can have and still
be a part of the network. Nodes with node numbers greater than the maximum
node number will not be polled, and therefore cannot participate in network com-
munications. This eliminates unnecessary polling of units with node numbers
above the maximum, and thus reduces the time required for communications.
MAC LINK Units currently connected.
This parameter determines how many nodes will be polled by the polling unit
during a polling cycle. Setting this to a high value increases the communications
cycle time, but reduces the time required to recognize that nodes have been
removed from or added to the network.
ing a token cycle when the data link is operating. With the default value of 10
frames, up to 4 event transmissions can be issued.
Event transmissions include instructions such as SEND(90) or RECV(98)
instructions, as well as processes such as remote monitoring and remote pro-
gramming from a SSS or CVSS.
Setting this parameter to a high value increases the communications cycle time,
while setting it to a low value will cause errors because of restrictions on event
transmissions when the data link is operating. Increase the number of frames by
3 for each additional event transmission when 5 or more event transmissions will
occur while the data link is operating.
ON (1)
OFF (0)
Communications cycle time
Maximum node number
Number of polled units per
communications cycle
Maximum number of frames per
communications cycle
DIP switch 2, pin 4
Network parameter
Polled unit
Polling unit
Automatic
62
4
10
Default value
Polling unit operation
5 to 255
2 to 62
1 to 62
5 to 255
Setting range
Section 4-6